Northern Idaho contains Belt-Purcell Supergroup equivalent metamorphic tectonites that underwent two regional deformational and metamorphic events during the Mesoproterozoic. Garnet-bearing pelitic schists from the Snow Peak area of northern Idaho yield Lu–Hf garnet-whole rock ages of 1085 ± 2 Ma, 1198 ± 79 Ma, 1207 ± 8 Ma, 1255 ± 28 Ma, and 1314 ± 2 Ma. Garnet from one sample, collected from the Clarkia area, was micro-drilled to obtain separate core and rim material that produced ages of 1347 ± 10 Ma and 1102 ± 47 Ma. The core versus rim ages from the micro-drilled sample along with the textural and spatial evidence of the other Lu–Hf garnet ages indicate two metamorphic garnet growth events at ~ 1330 Ma (M1) and ~ 1080 Ma (M2) with the intermediate ages representing mixed ages. Some garnet likely nucleated and grew M1 garnet cores that were later overgrown by younger M2 garnet rims. Most garnet throughout the Clarkia and Snow Peak areas are syntectonic with a regional penetrative deformational fabric, preserved as a strong preferred orientation of metamorphic matrix minerals (e.g., muscovite and biotite). The syntectonic garnets are interpreted to represent one regional, coeval metamorphic and deformation event at ~ 1080 Ma, which overlaps in time with the Grenville Orogeny. The older ~ 1330 Ma ages may represent an extension of the East Kootenay Orogeny described in western Canada. These deformational and metamorphic events indicate that western Laurentia (North America) was tectonically active in the Mesoproterozoic and during the assembly of the supercontinent Rodinia.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.lithos.2011.12.008","issn":"00244937","usgsCitation":"Nesheim, T., Vervoort, J., McClelland, W., Gilotti, J.A., and Lang, H., 2012, Mesoproterozoic syntectonic garnet within Belt Supergroup metamorphic tectonites: Evidence of Grenville-age metamorphism and deformation along northwest Laurentia: LITHOS, v. 134-135, p. 91-107, https://doi.org/10.1016/j.lithos.2011.12.008.","productDescription":"17 p.","startPage":"91","endPage":"107","costCenters":[],"links":[{"id":241715,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214028,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.lithos.2011.12.008"}],"country":"United States","state":"Idaho, Washington, Montana","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -117.72949218749999,\n 46.07323062540835\n ],\n [\n -113.8623046875,\n 46.07323062540835\n ],\n [\n -113.8623046875,\n 47.81315451752768\n ],\n [\n -117.72949218749999,\n 47.81315451752768\n ],\n [\n -117.72949218749999,\n 46.07323062540835\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"134-135","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5447e4b0c8380cd6cf2e","contributors":{"authors":[{"text":"Nesheim, T.O.","contributorId":48772,"corporation":false,"usgs":true,"family":"Nesheim","given":"T.O.","email":"","affiliations":[],"preferred":false,"id":435988,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vervoort, J.D.","contributorId":98126,"corporation":false,"usgs":true,"family":"Vervoort","given":"J.D.","affiliations":[],"preferred":false,"id":435991,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McClelland, W.C.","contributorId":66929,"corporation":false,"usgs":true,"family":"McClelland","given":"W.C.","email":"","affiliations":[],"preferred":false,"id":435989,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gilotti, J. A.","contributorId":15776,"corporation":false,"usgs":true,"family":"Gilotti","given":"J.","middleInitial":"A.","affiliations":[],"preferred":false,"id":435987,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lang, H.M.","contributorId":80911,"corporation":false,"usgs":true,"family":"Lang","given":"H.M.","email":"","affiliations":[],"preferred":false,"id":435990,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70044174,"text":"70044174 - 2012 - Magnetostratigraphy susceptibility for the Guadalupian Series GSSPs (Middle Permian) in Guadalupe Mountains National Park and adjacent areas in West Texas","interactions":[],"lastModifiedDate":"2013-04-22T10:44:52","indexId":"70044174","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1791,"text":"Geological Society, London, Special Publications","active":true,"publicationSubtype":{"id":10}},"title":"Magnetostratigraphy susceptibility for the Guadalupian Series GSSPs (Middle Permian) in Guadalupe Mountains National Park and adjacent areas in West Texas","docAbstract":"Here we establish a magnetostratigraphy susceptibility zonation for the three Middle Permian Global boundary Stratotype Sections and Points (GSSPs) that have recently been defined, located in Guadalupe Mountains National Park, West Texas, USA. These GSSPs, all within the Middle Permian Guadalupian Series, define (1) the base of the Roadian Stage (base of the Guadalupian Series), (2) the base of the Wordian Stage and (3) the base of the Capitanian Stage. Data from two additional stratigraphic successions in the region, equivalent in age to the Kungurian–Roadian and Wordian–Capitanian boundary intervals, are also reported. Based on low-field, mass specific magnetic susceptibility (χ) measurements of 706 closely spaced samples from these stratigraphic sections and time-series analysis of one of these sections, we (1) define the magnetostratigraphy susceptibility zonation for the three Guadalupian Series Global boundary Stratotype Sections and Points; (2) demonstrate that χ datasets provide a proxy for climate cyclicity; (3) give quantitative estimates of the time it took for some of these sediments to accumulate; (4) give the rates at which sediments were accumulated; (5) allow more precise correlation to equivalent sections in the region; (6) identify anomalous stratigraphic horizons; and (7) give estimates for timing and duration of geological events within sections.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geological Society, London, Special Publications","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"The Geological Society","publisherLocation":"London, UK","doi":"10.1144/SP373.1","usgsCitation":"Wardlaw, B.R., Ellwood, B.B., Lambert, L.L., Tomkin, J.H., Bell, G.L., and Nestell, G.P., 2012, Magnetostratigraphy susceptibility for the Guadalupian Series GSSPs (Middle Permian) in Guadalupe Mountains National Park and adjacent areas in West Texas: Geological Society, London, Special Publications, v. 373, p. 21-21, https://doi.org/10.1144/SP373.1.","startPage":"21","endPage":"21","numberOfPages":"1","additionalOnlineFiles":"N","ipdsId":"IP-034315","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":271339,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":271338,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1144/SP373.1"}],"country":"United States","state":"Texas","volume":"373","noUsgsAuthors":false,"publicationDate":"2012-08-14","publicationStatus":"PW","scienceBaseUri":"51765beae4b0f989f99e00fb","contributors":{"authors":[{"text":"Wardlaw, Bruce R. bwardlaw@usgs.gov","contributorId":266,"corporation":false,"usgs":true,"family":"Wardlaw","given":"Bruce","email":"bwardlaw@usgs.gov","middleInitial":"R.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":474985,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ellwood, Brooks B.","contributorId":44814,"corporation":false,"usgs":false,"family":"Ellwood","given":"Brooks","email":"","middleInitial":"B.","affiliations":[{"id":5115,"text":"Louisiana State University","active":true,"usgs":false}],"preferred":false,"id":474988,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lambert, Lance L.","contributorId":9550,"corporation":false,"usgs":true,"family":"Lambert","given":"Lance","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":474986,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tomkin, Jonathan H.","contributorId":85860,"corporation":false,"usgs":true,"family":"Tomkin","given":"Jonathan","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":474990,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bell, Gordon L.","contributorId":69639,"corporation":false,"usgs":true,"family":"Bell","given":"Gordon","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":474989,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Nestell, Galina P.","contributorId":22651,"corporation":false,"usgs":false,"family":"Nestell","given":"Galina","email":"","middleInitial":"P.","affiliations":[{"id":12734,"text":"University of Texas at Arlington","active":true,"usgs":false}],"preferred":false,"id":474987,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70032434,"text":"70032434 - 2012 - A spatial cluster analysis of tractor overturns in Kentucky from 1960 to 2002","interactions":[],"lastModifiedDate":"2020-12-01T19:16:19.95915","indexId":"70032434","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2980,"text":"PLoS ONE","active":true,"publicationSubtype":{"id":10}},"title":"A spatial cluster analysis of tractor overturns in Kentucky from 1960 to 2002","docAbstract":"Background:
Agricultural tractor overturns without rollover protective structures are the leading cause of farm fatalities in the United States. To our knowledge, no studies have incorporated the spatial scan statistic in identifying high-risk areas for tractor overturns. The aim of this study was to determine whether tractor overturns cluster in certain parts of Kentucky and identify factors associated with tractor overturns.
Methods:
A spatial statistical analysis using Kulldorff's spatial scan statistic was performed to identify county clusters at greatest risk for tractor overturns. A regression analysis was then performed to identify factors associated with tractor overturns.
Results:
The spatial analysis revealed a cluster of higher than expected tractor overturns in four counties in northern Kentucky (RR = 2.55) and 10 counties in eastern Kentucky (RR = 1.97). Higher rates of tractor overturns were associated with steeper average percent slope of pasture land by county (p = 0.0002) and a greater percent of total tractors with less than 40 horsepower by county (p<0.0001).
Conclusions:
This study reveals that geographic hotspots of tractor overturns exist in Kentucky and identifies factors associated with overturns. This study provides policymakers a guide to targeted county-level interventions (e.g., roll-over protective structures promotion interventions) with the intention of reducing tractor overturns in the highest risk counties in Kentucky.
","language":"English","publisher":"PLoS","doi":"10.1371/journal.pone.0030532","issn":"19326203","usgsCitation":"Saman, D., Cole, H., Odoi, A., Myers, M., Carey, D., and Westneat, S., 2012, A spatial cluster analysis of tractor overturns in Kentucky from 1960 to 2002: PLoS ONE, v. 7, no. 1, e30532, 9 p., https://doi.org/10.1371/journal.pone.0030532.","productDescription":"e30532, 9 p.","costCenters":[],"links":[{"id":474673,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1371/journal.pone.0030532","text":"Publisher Index Page"},{"id":241716,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214029,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1371/journal.pone.0030532"}],"country":"United States","state":"Kentucky","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-89.485106,36.497692],[-89.5391,36.498201],[-89.570071,36.544387],[-89.571509,36.552569],[-89.563185,36.568749],[-89.546113,36.579989],[-89.527583,36.581147],[-89.480893,36.569771],[-89.465445,36.536163],[-89.47246,36.513741],[-89.485106,36.497692]]],[[[-82.333044,37.740969],[-82.319686,37.734404],[-82.307235,37.707669],[-82.298074,37.704143],[-82.301964,37.696223],[-82.297126,37.684228],[-82.303867,37.678392],[-82.296724,37.678071],[-82.291773,37.669143],[-82.284687,37.675277],[-82.257111,37.656749],[-82.23939,37.661465],[-82.226111,37.653092],[-82.209691,37.625103],[-82.187298,37.626935],[-82.191444,37.644378],[-82.174688,37.646529],[-82.172762,37.634008],[-82.18143,37.621842],[-82.164191,37.620192],[-82.168137,37.608495],[-82.158554,37.609546],[-82.156718,37.59279],[-82.131977,37.593537],[-82.127321,37.586667],[-82.127303,37.572681],[-82.144648,37.568315],[-82.133954,37.562245],[-82.133299,37.552996],[-82.121985,37.552763],[-82.116584,37.559588],[-82.103127,37.560097],[-82.098924,37.5533],[-82.07503,37.555824],[-82.064792,37.539021],[-82.049584,37.535222],[-82.048205,37.528972],[-82.042397,37.533916],[-82.04478,37.546713],[-82.038972,37.547926],[-82.028826,37.537667],[-82.021006,37.540526],[-82.009194,37.533243],[-81.999844,37.542579],[-81.992597,37.538323],[-81.970147,37.546504],[-81.964971,37.543026],[-82.309415,37.300066],[-82.324619,37.28318],[-82.341849,37.280886],[-82.342068,37.274109],[-82.350948,37.267077],[-82.449164,37.243908],[-82.486439,37.231204],[-82.491486,37.225086],[-82.498858,37.227044],[-82.520117,37.212906],[-82.528746,37.213742],[-82.592451,37.182847],[-82.633493,37.154264],[-82.651646,37.151908],[-82.676765,37.134965],[-82.722097,37.120168],[-82.726201,37.115882],[-82.721617,37.101276],[-82.724954,37.091905],[-82.717204,37.079544],[-82.727022,37.073019],[-82.722254,37.057948],[-82.724714,37.042758],[-82.742454,37.04298],[-82.747981,37.025214],[-82.759175,37.027333],[-82.782144,37.008242],[-82.828592,37.005707],[-82.836008,36.988837],[-82.866019,36.978272],[-82.870274,36.965993],[-82.855705,36.953808],[-82.861282,36.944848],[-82.857965,36.929529],[-82.876215,36.910218],[-82.873213,36.897263],[-82.878569,36.889585],[-82.910315,36.874055],[-82.970253,36.857686],[-82.998376,36.85663],[-83.006086,36.847889],[-83.021887,36.849989],[-83.025887,36.855289],[-83.07259,36.854589],[-83.07519,36.840889],[-83.101792,36.829089],[-83.098492,36.814289],[-83.103092,36.806689],[-83.131694,36.781488],[-83.131245,36.767105],[-83.125655,36.761407],[-83.127833,36.750828],[-83.136395,36.743088],[-83.194597,36.739487],[-83.311403,36.710287],[-83.386099,36.686589],[-83.423707,36.667385],[-83.466483,36.6647],[-83.498011,36.670485],[-83.531912,36.664984],[-83.577312,36.641784],[-83.607913,36.637083],[-83.628913,36.624083],[-83.648314,36.622683],[-83.649513,36.616683],[-83.673114,36.604682],[-83.690714,36.582581],[-84.543138,36.596277],[-84.843091,36.605127],[-85.024627,36.619354],[-85.195372,36.625498],[-85.290627,36.62645],[-85.488353,36.614994],[-85.677789,36.618157],[-86.03277,36.630367],[-86.333051,36.648778],[-86.507771,36.652445],[-86.543777,36.640536],[-86.550054,36.644817],[-86.551292,36.637985],[-86.564143,36.633472],[-86.589906,36.652486],[-87.853204,36.633247],[-87.849567,36.663701],[-88.070532,36.678118],[-88.068208,36.659747],[-88.045127,36.602939],[-88.032489,36.540662],[-88.037822,36.51385],[-88.053205,36.497129],[-89.300284,36.507147],[-89.417293,36.499033],[-89.382762,36.583603],[-89.376367,36.613868],[-89.365548,36.625059],[-89.327589,36.632194],[-89.27171,36.571387],[-89.259994,36.565149],[-89.236542,36.566824],[-89.213563,36.580119],[-89.202607,36.601576],[-89.197654,36.628936],[-89.15908,36.666352],[-89.168723,36.671892],[-89.169522,36.688878],[-89.19948,36.716045],[-89.199798,36.734217],[-89.184523,36.753638],[-89.169106,36.759473],[-89.130399,36.751702],[-89.119198,36.759802],[-89.116067,36.772423],[-89.123481,36.785258],[-89.155891,36.789126],[-89.171069,36.798119],[-89.179229,36.812915],[-89.178888,36.831368],[-89.1704,36.841522],[-89.137969,36.847349],[-89.117567,36.887356],[-89.099007,36.961389],[-89.11503,36.980335],[-89.132685,36.9822],[-89.17112,37.008072],[-89.180849,37.026843],[-89.181369,37.046305],[-89.168087,37.074218],[-89.154504,37.088907],[-89.14132,37.093865],[-89.111189,37.119052],[-89.086526,37.165602],[-89.029981,37.211144],[-89.000968,37.224401],[-88.966831,37.229891],[-88.933077,37.227749],[-88.80572,37.188595],[-88.732105,37.143956],[-88.693983,37.141155],[-88.625889,37.119458],[-88.545403,37.070003],[-88.504437,37.065265],[-88.458948,37.073796],[-88.424776,37.149901],[-88.447764,37.203527],[-88.471753,37.220155],[-88.487277,37.244077],[-88.508031,37.260261],[-88.515939,37.284043],[-88.484462,37.345609],[-88.476592,37.386875],[-88.456,37.408482],[-88.408808,37.425216],[-88.365471,37.401663],[-88.312585,37.440591],[-88.281667,37.452596],[-88.135142,37.471626],[-88.087664,37.471059],[-88.064234,37.484548],[-88.061292,37.505232],[-88.069018,37.525297],[-88.131622,37.572968],[-88.139973,37.586451],[-88.142225,37.603737],[-88.156827,37.632801],[-88.159372,37.661847],[-88.122412,37.709685],[-88.059588,37.742608],[-88.02803,37.799224],[-87.997102,37.797672],[-87.95259,37.771742],[-87.944506,37.775256],[-87.932554,37.797672],[-87.90681,37.807624],[-87.903804,37.817762],[-87.910276,37.843416],[-87.936228,37.867937],[-87.941021,37.879168],[-87.938365,37.890802],[-87.904789,37.924892],[-87.892471,37.92793],[-87.87254,37.920999],[-87.830578,37.876516],[-87.7909,37.875714],[-87.76226,37.890906],[-87.717971,37.89257],[-87.67573,37.90193],[-87.666481,37.895786],[-87.66282,37.881449],[-87.681633,37.855917],[-87.679188,37.836321],[-87.666522,37.827455],[-87.635806,37.827015],[-87.612426,37.83384],[-87.588729,37.860984],[-87.591582,37.887194],[-87.620272,37.906922],[-87.62896,37.926714],[-87.606216,37.949642],[-87.601416,37.972542],[-87.585916,37.975442],[-87.574715,37.967742],[-87.57203,37.947466],[-87.559342,37.931146],[-87.511499,37.906426],[-87.447786,37.942427],[-87.418585,37.944763],[-87.380247,37.935596],[-87.344933,37.911164],[-87.302599,37.898558],[-87.220944,37.849134],[-87.158878,37.837871],[-87.14195,37.816176],[-87.129629,37.786608],[-87.111133,37.782512],[-87.090636,37.787808],[-87.067836,37.806065],[-87.043854,37.870796],[-87.045101,37.893775],[-87.033444,37.906593],[-86.969044,37.932858],[-86.919329,37.936664],[-86.85595,37.987292],[-86.820071,37.999392],[-86.794985,37.988982],[-86.765054,37.93251],[-86.73146,37.89434],[-86.718462,37.893123],[-86.680929,37.91501],[-86.647081,37.908621],[-86.644754,37.894806],[-86.661233,37.862761],[-86.661637,37.849714],[-86.655286,37.842505],[-86.638265,37.842718],[-86.609163,37.855408],[-86.598108,37.867382],[-86.599848,37.906754],[-86.588581,37.921159],[-86.534156,37.917007],[-86.507831,37.928829],[-86.50939,37.942492],[-86.525174,37.968228],[-86.521825,38.038327],[-86.51176,38.044448],[-86.452192,38.05049],[-86.432789,38.067171],[-86.430091,38.078638],[-86.434046,38.086763],[-86.463858,38.101177],[-86.463248,38.119278],[-86.449793,38.127223],[-86.431749,38.126121],[-86.401653,38.105396],[-86.379775,38.129274],[-86.335145,38.129242],[-86.323453,38.139032],[-86.321274,38.147418],[-86.325941,38.154317],[-86.37174,38.164183],[-86.377434,38.171379],[-86.373801,38.193352],[-86.360377,38.198796],[-86.287773,38.15805],[-86.271802,38.137874],[-86.27872,38.089303],[-86.273584,38.067443],[-86.261273,38.052721],[-86.220371,38.027922],[-86.178983,38.011308],[-86.12757,38.016011],[-86.095766,38.00893],[-86.075393,37.996948],[-86.053912,37.963571],[-86.038188,37.95935],[-86.029509,37.99264],[-85.951467,38.005608],[-85.925418,38.023456],[-85.906163,38.08617],[-85.908764,38.161169],[-85.894764,38.188469],[-85.845464,38.23027],[-85.829364,38.276769],[-85.780963,38.288469],[-85.761062,38.27257],[-85.744862,38.26717],[-85.683561,38.295469],[-85.653641,38.327108],[-85.638777,38.361443],[-85.632937,38.395666],[-85.607629,38.439295],[-85.587758,38.450495],[-85.536542,38.456083],[-85.498866,38.468242],[-85.474354,38.504074],[-85.423077,38.531581],[-85.4156,38.546341],[-85.415821,38.563558],[-85.437446,38.601724],[-85.438742,38.659319],[-85.456978,38.689135],[-85.452114,38.709348],[-85.434065,38.729455],[-85.410925,38.73708],[-85.363827,38.730477],[-85.306049,38.741649],[-85.275454,38.741172],[-85.246505,38.731821],[-85.213257,38.695446],[-85.172528,38.688082],[-85.13868,38.699168],[-85.103313,38.725323],[-84.990006,38.778383],[-84.941071,38.775627],[-84.887919,38.794652],[-84.814641,38.784488],[-84.813939,38.800209],[-84.829958,38.830632],[-84.791002,38.860572],[-84.785234,38.880439],[-84.812746,38.895132],[-84.867778,38.899133],[-84.877029,38.909016],[-84.877762,38.920357],[-84.83516,38.957961],[-84.829857,38.969385],[-84.83712,38.988059],[-84.889065,39.04082],[-84.897364,39.057378],[-84.831197,39.10192],[-84.78768,39.115297],[-84.766749,39.138558],[-84.750749,39.147358],[-84.718548,39.137059],[-84.684847,39.100459],[-84.657246,39.09546],[-84.632446,39.07676],[-84.620112,39.073457],[-84.572144,39.08206],[-84.550844,39.09936],[-84.524644,39.09216],[-84.510076,39.093606],[-84.470542,39.12146],[-84.449793,39.117754],[-84.435541,39.102261],[-84.427913,39.054962],[-84.406941,39.045662],[-84.346039,39.036963],[-84.326539,39.027463],[-84.304698,39.006455],[-84.288164,38.955789],[-84.234453,38.893226],[-84.231306,38.830552],[-84.212904,38.805707],[-84.071491,38.770475],[-84.044486,38.770572],[-83.962123,38.787384],[-83.917217,38.769665],[-83.873168,38.762418],[-83.852085,38.751433],[-83.836696,38.717857],[-83.787113,38.699489],[-83.769347,38.65522],[-83.720779,38.646704],[-83.679484,38.630036],[-83.663911,38.62793],[-83.649737,38.632753],[-83.637377,38.66793],[-83.626922,38.679387],[-83.520953,38.703045],[-83.493342,38.694187],[-83.468059,38.67547],[-83.384755,38.663171],[-83.356445,38.654009],[-83.327636,38.637489],[-83.319101,38.612233],[-83.307832,38.600824],[-83.294193,38.596588],[-83.264011,38.621535],[-83.245572,38.627936],[-83.202453,38.616956],[-83.142836,38.625076],[-83.112372,38.671685],[-83.053104,38.695831],[-83.027917,38.727143],[-82.979395,38.725976],[-82.923694,38.750076],[-82.894193,38.756576],[-82.879492,38.751476],[-82.869892,38.728177],[-82.877592,38.690177],[-82.859391,38.660378],[-82.854291,38.613454],[-82.844306,38.590862],[-82.820161,38.572703],[-82.789776,38.559951],[-82.724846,38.5576],[-82.696621,38.542112],[-82.657051,38.496816],[-82.608202,38.468049],[-82.593673,38.421809],[-82.599737,38.39037],[-82.593008,38.375082],[-82.597979,38.344909],[-82.576936,38.328275],[-82.572691,38.318801],[-82.583056,38.296829],[-82.574656,38.263873],[-82.581796,38.248592],[-82.60423,38.247303],[-82.61226,38.236087],[-82.608944,38.22366],[-82.600353,38.218949],[-82.599326,38.197231],[-82.611343,38.171548],[-82.642997,38.16956],[-82.637306,38.13905],[-82.622125,38.133414],[-82.621164,38.123239],[-82.606589,38.120843],[-82.587782,38.108879],[-82.584039,38.090663],[-82.551259,38.070799],[-82.517351,38.001204],[-82.48978,37.998869],[-82.483871,37.984505],[-82.464257,37.983412],[-82.46938,37.973059],[-82.483836,37.971566],[-82.484758,37.965752],[-82.472669,37.960721],[-82.475096,37.954906],[-82.48512,37.946044],[-82.495294,37.946612],[-82.491182,37.93581],[-82.501948,37.934756],[-82.49814,37.9283],[-82.480338,37.925836],[-82.487616,37.919905],[-82.475534,37.911945],[-82.474574,37.900295],[-82.469058,37.90222],[-82.464297,37.915038],[-82.421484,37.885652],[-82.417679,37.870658],[-82.409799,37.865392],[-82.422127,37.863952],[-82.423513,37.860313],[-82.414651,37.85626],[-82.420484,37.847496],[-82.39968,37.829935],[-82.39871,37.808785],[-82.385259,37.81741],[-82.377393,37.803009],[-82.340455,37.786058],[-82.335981,37.7745],[-82.323004,37.773907],[-82.333816,37.765391],[-82.331162,37.763125],[-82.312824,37.765027],[-82.310893,37.762005],[-82.333044,37.740969]]]]},\"properties\":{\"name\":\"Kentucky\",\"nation\":\"USA \"}}]}","volume":"7","issue":"1","noUsgsAuthors":false,"publicationDate":"2012-01-24","publicationStatus":"PW","scienceBaseUri":"5059e59fe4b0c8380cd46e98","contributors":{"authors":[{"text":"Saman, D.M.","contributorId":105924,"corporation":false,"usgs":true,"family":"Saman","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":436164,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cole, H.P.","contributorId":11013,"corporation":false,"usgs":true,"family":"Cole","given":"H.P.","email":"","affiliations":[],"preferred":false,"id":436159,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Odoi, A.","contributorId":78952,"corporation":false,"usgs":true,"family":"Odoi","given":"A.","email":"","affiliations":[],"preferred":false,"id":436162,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Myers, M.L.","contributorId":104717,"corporation":false,"usgs":true,"family":"Myers","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":436163,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Carey, D.I.","contributorId":12637,"corporation":false,"usgs":true,"family":"Carey","given":"D.I.","email":"","affiliations":[],"preferred":false,"id":436160,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Westneat, S.C.","contributorId":52801,"corporation":false,"usgs":true,"family":"Westneat","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":436161,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70032688,"text":"70032688 - 2012 - Empirical methods for detecting regional trends and other spatial expressions in antrim shale gas productivity, with implications for improving resource projections using local nonparametric estimation techniques","interactions":[],"lastModifiedDate":"2020-11-24T17:35:13.36174","indexId":"70032688","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2832,"text":"Natural Resources Research","onlineIssn":"1573-8981","printIssn":"1520-7439","active":true,"publicationSubtype":{"id":10}},"title":"Empirical methods for detecting regional trends and other spatial expressions in antrim shale gas productivity, with implications for improving resource projections using local nonparametric estimation techniques","docAbstract":"The primary objectives of this research were to (1) investigate empirical methods for establishing regional trends in unconventional gas resources as exhibited by historical production data and (2) determine whether or not incorporating additional knowledge of a regional trend in a suite of previously established local nonparametric resource prediction algorithms influences assessment results. Three different trend detection methods were applied to publicly available production data (well EUR aggregated to 80-acre cells) from the Devonian Antrim Shale gas play in the Michigan Basin. This effort led to the identification of a southeast–northwest trend in cell EUR values across the play that, in a very general sense, conforms to the primary fracture and structural orientations of the province. However, including this trend in the resource prediction algorithms did not lead to improved results. Further analysis indicated the existence of clustering among cell EUR values that likely dampens the contribution of the regional trend. The reason for the clustering, a somewhat unexpected result, is not completely understood, although the geological literature provides some possible explanations. With appropriate data, a better understanding of this clustering phenomenon may lead to important information about the factors and their interactions that control Antrim Shale gas production, which may, in turn, help establish a more general protocol for better estimating resources in this and other shale gas plays.
","language":"English","publisher":"Springer","doi":"10.1007/s11053-011-9165-x","issn":"15207439","usgsCitation":"Coburn, T.C., Freeman, P., and Attanasi, E.D., 2012, Empirical methods for detecting regional trends and other spatial expressions in antrim shale gas productivity, with implications for improving resource projections using local nonparametric estimation techniques: Natural Resources Research, v. 21, no. 1, p. 1-21, https://doi.org/10.1007/s11053-011-9165-x.","productDescription":"21","startPage":"1","endPage":"21","costCenters":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true},{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"links":[{"id":241422,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Michigan","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-85.825955,45.404296],[-85.833516,45.378175],[-85.88301,45.443479],[-85.834891,45.428356],[-85.825955,45.404296]]],[[[-86.093536,45.007838],[-86.133655,44.996874],[-86.154824,45.002394],[-86.156689,45.010535],[-86.141644,45.040251],[-86.117908,45.048478],[-86.079103,45.030795],[-86.100315,45.02624],[-86.093536,45.007838]]],[[[-86.033174,45.15842],[-85.993194,45.152805],[-85.976803,45.138363],[-85.984095,45.087073],[-85.976883,45.06266],[-85.99736,45.055929],[-86.058653,45.100776],[-86.065016,45.140266],[-86.050473,45.158418],[-86.033174,45.15842]]],[[[-88.684434,48.115785],[-88.656915,48.139225],[-88.547033,48.174891],[-88.524753,48.165291],[-88.501088,48.168181],[-88.482039,48.179915],[-88.422601,48.190975],[-88.418244,48.18037],[-88.419875,48.170731],[-88.459697,48.158551],[-88.566938,48.093719],[-88.578053,48.084373],[-88.579784,48.058669],[-88.670073,48.011446],[-88.899184,47.9533],[-88.962664,47.923512],[-88.968903,47.901675],[-88.942387,47.895436],[-88.899698,47.902445],[-88.911665,47.891344],[-89.157738,47.824015],[-89.19017,47.831603],[-89.201812,47.850243],[-89.234533,47.851718],[-89.228507,47.858039],[-89.255202,47.876102],[-89.179154,47.93503],[-88.940886,48.01959],[-88.915032,48.020681],[-88.835714,48.056752],[-88.787556,48.063035],[-88.764256,48.085189],[-88.684434,48.115785]]],[[[-84.612845,45.834528],[-84.650783,45.85921],[-84.646876,45.884642],[-84.622515,45.87753],[-84.578328,45.820092],[-84.432472,45.786732],[-84.421267,45.792694],[-84.42159,45.805651],[-84.403208,45.784394],[-84.35602,45.771895],[-84.372248,45.745784],[-84.405852,45.722417],[-84.484128,45.73071],[-84.612845,45.834528]]],[[[-85.524448,45.829794],[-85.450206,45.796677],[-85.450206,45.776452],[-85.462581,45.765864],[-85.507263,45.778237],[-85.532009,45.798172],[-85.524448,45.829794]]],[[[-85.696872,45.69725],[-85.701809,45.736129],[-85.688849,45.747238],[-85.651866,45.743139],[-85.649353,45.722552],[-85.672187,45.696633],[-85.696872,45.69725]]],[[[-85.360952,45.817554],[-85.351434,45.795663],[-85.359048,45.776627],[-85.377132,45.769013],[-85.394264,45.778531],[-85.377132,45.812795],[-85.360952,45.817554]]],[[[-85.566441,45.760222],[-85.53562,45.750394],[-85.506133,45.754715],[-85.497656,45.746246],[-85.515145,45.749451],[-85.520803,45.737247],[-85.498777,45.726291],[-85.494016,45.698476],[-85.506104,45.681148],[-85.490252,45.652122],[-85.487026,45.621211],[-85.534064,45.578198],[-85.561634,45.572213],[-85.618049,45.582647],[-85.630016,45.598166],[-85.604521,45.639256],[-85.604881,45.681932],[-85.572309,45.711449],[-85.566441,45.760222]]],[[[-86.626187,45.573581],[-86.622023,45.55633],[-86.636895,45.542053],[-86.648792,45.543243],[-86.661284,45.574176],[-86.712328,45.610939],[-86.67727,45.613689],[-86.626187,45.573581]]],[[[-83.880387,41.720089],[-84.806082,41.696089],[-84.805883,41.760216],[-86.823628,41.76024],[-86.717037,41.819349],[-86.619442,41.893827],[-86.582197,41.942241],[-86.485223,42.118239],[-86.356218,42.254166],[-86.297168,42.358207],[-86.261573,42.443894],[-86.226037,42.592811],[-86.22905,42.637693],[-86.206834,42.719424],[-86.210737,42.859128],[-86.232707,43.015762],[-86.280756,43.136015],[-86.407832,43.338436],[-86.479276,43.515335],[-86.529507,43.593462],[-86.540916,43.633158],[-86.529686,43.676849],[-86.463436,43.744687],[-86.43114,43.815569],[-86.462756,43.969655],[-86.508827,44.032755],[-86.514704,44.057672],[-86.421576,44.128962],[-86.362847,44.208113],[-86.343793,44.249608],[-86.26871,44.345324],[-86.248083,44.420946],[-86.248914,44.483004],[-86.220697,44.566742],[-86.22545,44.59459],[-86.259029,44.663654],[-86.256796,44.686769],[-86.232482,44.70605],[-86.09074,44.740544],[-86.074658,44.766792],[-86.065966,44.821522],[-86.072468,44.884788],[-86.066745,44.905685],[-86.038332,44.915696],[-86.021513,44.902774],[-85.992535,44.900026],[-85.9316,44.968788],[-85.897626,44.962014],[-85.869852,44.939031],[-85.807403,44.949814],[-85.780439,44.977932],[-85.771395,45.015181],[-85.746444,45.051229],[-85.695715,45.076461],[-85.656024,45.145788],[-85.618639,45.186771],[-85.606963,45.178477],[-85.585986,45.180381],[-85.551072,45.210742],[-85.540497,45.210169],[-85.526734,45.189316],[-85.531461,45.177247],[-85.564897,45.153962],[-85.599801,45.149286],[-85.614319,45.127562],[-85.583198,45.071304],[-85.566066,45.059201],[-85.56613,45.043633],[-85.597181,45.040547],[-85.599652,45.021749],[-85.621878,45.004529],[-85.602356,44.974272],[-85.602034,44.926743],[-85.621403,44.923123],[-85.645456,44.883645],[-85.652355,44.849092],[-85.637,44.790078],[-85.640781,44.775561],[-85.627982,44.767508],[-85.593833,44.768651],[-85.581717,44.807784],[-85.532931,44.87319],[-85.530729,44.889182],[-85.559524,44.888113],[-85.564509,44.895246],[-85.533553,44.925762],[-85.520034,44.973996],[-85.475204,44.991053],[-85.464944,44.961062],[-85.48574,44.953626],[-85.500872,44.85883],[-85.555894,44.818256],[-85.57517,44.762766],[-85.554774,44.748917],[-85.527216,44.748235],[-85.504775,44.768082],[-85.509251,44.787334],[-85.499591,44.803838],[-85.462943,44.825044],[-85.3958,44.931018],[-85.378286,44.998587],[-85.380659,45.046319],[-85.366412,45.069023],[-85.366908,45.116938],[-85.386726,45.189497],[-85.388593,45.23524],[-85.371593,45.270834],[-85.307646,45.31314],[-85.262996,45.319507],[-85.196704,45.360641],[-85.143651,45.370369],[-85.032813,45.361251],[-84.91585,45.393115],[-84.912956,45.409776],[-84.922006,45.421914],[-84.990041,45.427618],[-84.978373,45.420171],[-85.040272,45.436509],[-85.087756,45.476335],[-85.115479,45.539406],[-85.119026,45.573002],[-85.07491,45.629242],[-85.007026,45.65636],[-84.942636,45.714292],[-84.951745,45.737326],[-85.011433,45.757962],[-85.00741,45.763168],[-84.805114,45.746378],[-84.781995,45.760345],[-84.7798,45.76965],[-84.79229,45.778464],[-84.780313,45.787224],[-84.734065,45.788205],[-84.715996,45.766174],[-84.573631,45.710381],[-84.46168,45.652404],[-84.442348,45.654771],[-84.427495,45.669201],[-84.376403,45.655565],[-84.329537,45.66438],[-84.215268,45.634767],[-84.128867,45.562284],[-84.122309,45.523788],[-84.095905,45.497298],[-84.056138,45.489349],[-84.028813,45.497225],[-83.939261,45.493189],[-83.909472,45.485784],[-83.806622,45.419159],[-83.721815,45.413304],[-83.599273,45.352561],[-83.570361,45.347198],[-83.538306,45.358167],[-83.514717,45.34646],[-83.488826,45.355872],[-83.422486,45.290989],[-83.381743,45.268983],[-83.41241,45.238905],[-83.363678,45.166469],[-83.316118,45.141958],[-83.30788,45.099093],[-83.265896,45.026844],[-83.340257,45.041545],[-83.36747,45.062268],[-83.399255,45.070364],[-83.433798,45.057616],[-83.453363,45.035331],[-83.446342,45.016655],[-83.431254,45.007998],[-83.450013,44.990219],[-83.433032,44.93289],[-83.404596,44.918761],[-83.39396,44.903056],[-83.320503,44.880571],[-83.321241,44.852962],[-83.300648,44.829831],[-83.296265,44.743502],[-83.274674,44.70477],[-83.287802,44.657703],[-83.31445,44.608926],[-83.308471,44.539902],[-83.326824,44.444411],[-83.321553,44.409119],[-83.333757,44.372486],[-83.332533,44.340464],[-83.343738,44.329763],[-83.373607,44.327784],[-83.414301,44.294543],[-83.425762,44.272487],[-83.442731,44.265361],[-83.460958,44.278176],[-83.500392,44.27661],[-83.53771,44.248171],[-83.567744,44.155899],[-83.573071,44.101298],[-83.591361,44.079237],[-83.58409,44.056748],[-83.650116,44.052404],[-83.679654,44.036365],[-83.687892,44.020709],[-83.680108,43.994196],[-83.76283,43.985361],[-83.82808,43.989003],[-83.877047,43.959351],[-83.890912,43.923314],[-83.907388,43.918062],[-83.916815,43.89905],[-83.929375,43.777091],[-83.945426,43.759946],[-83.954792,43.760932],[-83.939297,43.715369],[-83.909479,43.672622],[-83.852076,43.644922],[-83.770693,43.628691],[-83.769886,43.634924],[-83.725793,43.618691],[-83.703446,43.597646],[-83.669795,43.59079],[-83.553707,43.685432],[-83.540187,43.708746],[-83.515853,43.718157],[-83.506657,43.710907],[-83.48007,43.714636],[-83.470053,43.723418],[-83.440171,43.761694],[-83.446752,43.77186],[-83.438311,43.786846],[-83.411453,43.805033],[-83.407647,43.831998],[-83.33227,43.880522],[-83.331788,43.893901],[-83.347365,43.91216],[-83.30569,43.922489],[-83.28231,43.938031],[-83.26185,43.969021],[-83.227093,43.981003],[-83.058741,44.006224],[-83.024604,44.045174],[-82.990728,44.048846],[-82.967439,44.066138],[-82.915976,44.070503],[-82.889831,44.050952],[-82.793205,44.023247],[-82.783198,44.009366],[-82.746255,43.996037],[-82.678642,43.88373],[-82.65545,43.867883],[-82.643166,43.852468],[-82.647784,43.842684],[-82.633641,43.831224],[-82.612224,43.739771],[-82.597911,43.590016],[-82.539517,43.437539],[-82.523086,43.225361],[-82.486684,43.104688],[-82.415937,43.005555],[-82.42455,42.993393],[-82.412965,42.977041],[-82.455027,42.926866],[-82.469912,42.887459],[-82.468961,42.852314],[-82.482045,42.808629],[-82.467483,42.76191],[-82.510533,42.665172],[-82.518782,42.613888],[-82.589779,42.550678],[-82.640916,42.554973],[-82.686417,42.518597],[-82.664335,42.546244],[-82.680758,42.557909],[-82.688061,42.588417],[-82.701152,42.585991],[-82.713042,42.597904],[-82.683482,42.609433],[-82.690124,42.625033],[-82.669103,42.637225],[-82.645715,42.631145],[-82.630922,42.64211],[-82.623043,42.655951],[-82.630851,42.673341],[-82.700964,42.689548],[-82.813518,42.640833],[-82.819017,42.616333],[-82.789017,42.603434],[-82.782414,42.564834],[-82.834216,42.567849],[-82.874416,42.523535],[-82.883915,42.471836],[-82.870572,42.451235],[-82.894013,42.389437],[-82.915114,42.378137],[-82.928815,42.359437],[-82.92397,42.352068],[-83.064121,42.317738],[-83.096521,42.290138],[-83.128022,42.238839],[-83.133923,42.17474],[-83.121323,42.125742],[-83.133511,42.088143],[-83.157624,42.085542],[-83.188598,42.066431],[-83.181475,42.019301],[-83.187246,42.007573],[-83.208647,42.00504],[-83.216835,41.98862],[-83.248741,41.972735],[-83.269521,41.939042],[-83.292761,41.944616],[-83.315859,41.935893],[-83.341557,41.879956],[-83.366187,41.865505],[-83.379705,41.871729],[-83.40822,41.832654],[-83.436298,41.816471],[-83.443364,41.789118],[-83.42418,41.741042],[-83.503433,41.731547],[-83.880387,41.720089]]],[[[-88.116846,45.921703],[-88.189789,45.952208],[-88.209585,45.94428],[-88.239672,45.948982],[-88.249117,45.963663],[-88.292381,45.951115],[-88.316894,45.960969],[-88.326003,45.9553],[-88.334628,45.968808],[-88.380183,45.991654],[-88.414849,45.975483],[-88.458658,45.999391],[-88.492495,45.992157],[-88.509516,46.019169],[-88.565485,46.015708],[-88.589,46.005077],[-88.598093,46.017623],[-88.613063,45.990627],[-88.663697,45.989084],[-88.674606,46.010567],[-88.698716,46.017903],[-88.718397,46.013284],[-88.730675,46.026535],[-88.776187,46.015931],[-88.784411,46.032709],[-88.811948,46.021609],[-88.837991,46.030176],[-89.09163,46.138505],[-90.120489,46.336852],[-90.116844,46.355153],[-90.157851,46.409291],[-90.163422,46.434605],[-90.220532,46.503403],[-90.263018,46.502777],[-90.277131,46.524487],[-90.312581,46.517113],[-90.310329,46.536852],[-90.331887,46.553278],[-90.344338,46.552087],[-90.349462,46.53808],[-90.39332,46.532615],[-90.41562,46.563169],[-90.327626,46.607744],[-90.306609,46.602741],[-90.164026,46.645515],[-90.028392,46.67439],[-89.918466,46.740324],[-89.846962,46.796556],[-89.790663,46.818469],[-89.678469,46.832923],[-89.619329,46.81889],[-89.516895,46.841025],[-89.415154,46.843983],[-89.228362,46.912751],[-89.128698,46.992599],[-89.086742,46.985298],[-89.02893,47.00114],[-88.998907,46.99531],[-88.972802,47.002096],[-88.925586,47.040923],[-88.890708,47.099024],[-88.848176,47.115065],[-88.816684,47.139938],[-88.764351,47.155762],[-88.676624,47.216918],[-88.573997,47.245989],[-88.498756,47.295256],[-88.418841,47.371058],[-88.285635,47.422146],[-88.23944,47.429923],[-88.217822,47.448738],[-88.040291,47.475999],[-87.801184,47.473301],[-87.715942,47.439816],[-87.710471,47.4062],[-87.75138,47.405066],[-87.815371,47.38479],[-87.8567,47.395387],[-87.957058,47.38726],[-87.965598,47.368645],[-87.938787,47.346777],[-87.94336,47.335899],[-88.06009,47.295796],[-88.163059,47.216278],[-88.227552,47.199938],[-88.242109,47.172184],[-88.239487,47.151176],[-88.231797,47.149609],[-88.239895,47.139436],[-88.262537,47.145087],[-88.281652,47.138239],[-88.297547,47.098639],[-88.346501,47.079407],[-88.367624,47.019213],[-88.410157,46.978782],[-88.443901,46.972251],[-88.474217,46.889034],[-88.483748,46.831727],[-88.462349,46.786711],[-88.438427,46.786714],[-88.38141,46.838466],[-88.375577,46.857313],[-88.352145,46.857009],[-88.244437,46.929612],[-88.145561,46.966409],[-88.132957,46.962237],[-88.185964,46.920025],[-88.175197,46.90458],[-88.083937,46.920112],[-88.004298,46.906982],[-87.900695,46.909682],[-87.847037,46.884163],[-87.816794,46.891154],[-87.783216,46.879927],[-87.766243,46.861446],[-87.741857,46.865274],[-87.72588,46.827426],[-87.69459,46.827182],[-87.681561,46.842392],[-87.662261,46.815157],[-87.6333,46.812107],[-87.595307,46.78295],[-87.581674,46.729399],[-87.523308,46.688488],[-87.503238,46.647796],[-87.469023,46.635918],[-87.464108,46.614811],[-87.442612,46.602776],[-87.383961,46.59307],[-87.381649,46.580059],[-87.392974,46.572523],[-87.375613,46.54714],[-87.393985,46.533183],[-87.352448,46.501324],[-87.259116,46.488283],[-87.12744,46.494014],[-87.008724,46.532723],[-86.964534,46.516549],[-86.947077,46.472064],[-86.903742,46.466138],[-86.889094,46.458499],[-86.883919,46.441514],[-86.850111,46.434114],[-86.816026,46.437892],[-86.803557,46.466669],[-86.768516,46.479072],[-86.735929,46.475231],[-86.70323,46.439378],[-86.686412,46.454965],[-86.683819,46.498079],[-86.701929,46.511571],[-86.709325,46.543914],[-86.678182,46.561039],[-86.656479,46.558453],[-86.62738,46.53371],[-86.646393,46.485776],[-86.627441,46.47754],[-86.612173,46.493295],[-86.609039,46.470239],[-86.586168,46.463324],[-86.469306,46.551422],[-86.437167,46.54896],[-86.34989,46.578035],[-86.161681,46.669475],[-86.138295,46.672935],[-86.119862,46.657256],[-86.099843,46.654615],[-85.877908,46.690914],[-85.751345,46.67743],[-85.50951,46.675786],[-85.257999,46.753078],[-85.173042,46.763634],[-85.063556,46.757856],[-84.954009,46.771362],[-85.007616,46.728339],[-85.027513,46.697451],[-85.037056,46.600995],[-85.025491,46.546397],[-85.056133,46.52652],[-85.049847,46.503963],[-85.025598,46.483028],[-84.969464,46.47629],[-84.937145,46.489252],[-84.921931,46.469962],[-84.861448,46.46993],[-84.829491,46.444071],[-84.769151,46.453523],[-84.678423,46.487694],[-84.63102,46.484868],[-84.573522,46.427895],[-84.551496,46.418522],[-84.503719,46.43919],[-84.471848,46.434289],[-84.455527,46.453897],[-84.463322,46.467435],[-84.445149,46.489016],[-84.420274,46.501077],[-84.343599,46.507713],[-84.275814,46.492821],[-84.254434,46.500821],[-84.226131,46.53392],[-84.193729,46.53992],[-84.177428,46.52692],[-84.128925,46.530119],[-84.111225,46.504119],[-84.146172,46.41852],[-84.138906,46.372221],[-84.106247,46.321963],[-84.119629,46.315013],[-84.115563,46.268225],[-84.097766,46.256512],[-84.118175,46.233968],[-84.14595,46.224995],[-84.182732,46.23545],[-84.219494,46.231992],[-84.249164,46.206461],[-84.247687,46.17989],[-84.221001,46.163062],[-84.196669,46.16615],[-84.177298,46.183993],[-84.125022,46.180209],[-84.100126,46.15077],[-84.026536,46.131648],[-84.061329,46.113482],[-84.072398,46.09669],[-84.066257,46.087438],[-83.989526,46.032823],[-83.943933,46.031465],[-83.900535,45.998918],[-83.873147,45.993426],[-83.845399,46.025679],[-83.830146,46.022324],[-83.818202,46.002425],[-83.794055,45.995801],[-83.765277,46.018363],[-83.773785,46.051471],[-83.796555,46.056688],[-83.81252,46.073469],[-83.824036,46.103638],[-83.815826,46.108529],[-83.771821,46.090999],[-83.728165,46.090957],[-83.703861,46.103366],[-83.63498,46.103953],[-83.581315,46.089613],[-83.547202,46.047868],[-83.532913,46.011328],[-83.473946,45.988558],[-83.510623,45.929324],[-83.561838,45.912562],[-83.65766,45.945463],[-83.687695,45.935389],[-83.78611,45.933375],[-83.803332,45.943362],[-83.835505,45.941843],[-83.840869,45.952726],[-83.879616,45.966196],[-83.921257,45.958075],[-83.985141,45.967133],[-84.017565,45.959046],[-84.090391,45.967256],[-84.111174,45.978675],[-84.169368,45.966919],[-84.238174,45.967595],[-84.253993,45.956727],[-84.330346,45.956043],[-84.376429,45.931962],[-84.428239,45.958144],[-84.443086,45.977825],[-84.459956,45.970343],[-84.488536,45.98882],[-84.507201,45.991169],[-84.514071,45.971292],[-84.532392,45.969448],[-84.540995,46.019501],[-84.563891,46.032459],[-84.609063,46.026418],[-84.656567,46.052654],[-84.692735,46.027019],[-84.685254,45.973454],[-84.723039,45.967279],[-84.738849,45.945792],[-84.713614,45.920366],[-84.734002,45.907026],[-84.721277,45.873911],[-84.702122,45.853935],[-84.720609,45.848116],[-84.725734,45.837045],[-84.746985,45.835597],[-84.828996,45.871209],[-84.842147,45.898005],[-84.917288,45.930576],[-84.971232,45.984208],[-85.020951,46.012845],[-85.14516,46.050035],[-85.197523,46.044878],[-85.222416,46.060629],[-85.266385,46.065779],[-85.335466,46.092459],[-85.381263,46.082086],[-85.409463,46.100585],[-85.426916,46.101964],[-85.445835,46.086426],[-85.499422,46.09692],[-85.539479,46.080416],[-85.603785,46.030363],[-85.663966,45.967013],[-85.697203,45.960158],[-85.8092,45.979931],[-85.842404,45.965247],[-85.893196,45.967253],[-85.922737,45.948287],[-85.926017,45.932104],[-85.910264,45.922112],[-85.920581,45.920994],[-85.998868,45.950968],[-86.094753,45.966704],[-86.159415,45.953765],[-86.208255,45.962978],[-86.22906,45.94857],[-86.278007,45.942057],[-86.324232,45.90608],[-86.332625,45.851813],[-86.349134,45.83416],[-86.351658,45.798132],[-86.369918,45.789254],[-86.415971,45.793793],[-86.439661,45.760669],[-86.47905,45.757416],[-86.486028,45.746608],[-86.51457,45.752337],[-86.53328,45.710849],[-86.580936,45.71192],[-86.587528,45.666456],[-86.625132,45.663819],[-86.616893,45.606796],[-86.687208,45.634253],[-86.695275,45.648175],[-86.708038,45.649202],[-86.718191,45.67732],[-86.705184,45.690901],[-86.689102,45.687862],[-86.665677,45.702217],[-86.67148,45.72053],[-86.633138,45.747654],[-86.631018,45.782019],[-86.583391,45.778242],[-86.576858,45.801473],[-86.557215,45.808172],[-86.555186,45.831696],[-86.529208,45.853043],[-86.529573,45.874974],[-86.541464,45.890234],[-86.583304,45.898784],[-86.603293,45.876626],[-86.625736,45.868295],[-86.632478,45.843309],[-86.645998,45.833888],[-86.721113,45.845431],[-86.749638,45.867796],[-86.78208,45.860195],[-86.773279,45.811385],[-86.821523,45.770356],[-86.838658,45.741831],[-86.838746,45.722307],[-86.944158,45.695833],[-86.964275,45.672761],[-86.984588,45.705812],[-86.975224,45.75313],[-86.988438,45.810621],[-87.00508,45.831718],[-87.031435,45.837238],[-87.057439,45.812483],[-87.064302,45.758828],[-87.05555,45.751535],[-87.057444,45.736822],[-87.070442,45.718779],[-87.059953,45.708893],[-87.093365,45.701473],[-87.172241,45.661788],[-87.196852,45.636275],[-87.333407,45.446056],[-87.327749,45.425307],[-87.3925,45.369028],[-87.431684,45.316383],[-87.438908,45.293405],[-87.600796,45.146842],[-87.612019,45.123377],[-87.601086,45.104092],[-87.581969,45.097206],[-87.590208,45.095264],[-87.657135,45.107568],[-87.683902,45.144135],[-87.735135,45.171538],[-87.741805,45.197051],[-87.72796,45.207956],[-87.698248,45.281512],[-87.648126,45.339396],[-87.656624,45.367295],[-87.690281,45.389822],[-87.754104,45.349442],[-87.823028,45.35265],[-87.848368,45.340676],[-87.871204,45.360056],[-87.886949,45.35311],[-87.850969,45.401925],[-87.860432,45.423504],[-87.855298,45.441379],[-87.812976,45.464159],[-87.793447,45.498372],[-87.803364,45.537016],[-87.832296,45.558767],[-87.831689,45.568035],[-87.790874,45.564096],[-87.777671,45.609204],[-87.824676,45.653211],[-87.780808,45.680349],[-87.809075,45.699717],[-87.810144,45.71023],[-87.85548,45.726943],[-87.875813,45.753888],[-87.963452,45.75822],[-87.986429,45.769596],[-87.982617,45.782944],[-87.995876,45.795435],[-88.072091,45.780261],[-88.129461,45.809288],[-88.13611,45.819029],[-88.073134,45.871952],[-88.101814,45.883504],[-88.105677,45.904387],[-88.095354,45.913895],[-88.116846,45.921703]]]]},\"properties\":{\"name\":\"Michigan\",\"nation\":\"USA \"}}]}","volume":"21","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-12-29","publicationStatus":"PW","scienceBaseUri":"505a0904e4b0c8380cd51d71","contributors":{"authors":[{"text":"Coburn, Timothy C.","contributorId":26011,"corporation":false,"usgs":true,"family":"Coburn","given":"Timothy","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":437456,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Freeman, Philip A. 0000-0002-0863-7431 pfreeman@usgs.gov","orcid":"https://orcid.org/0000-0002-0863-7431","contributorId":193093,"corporation":false,"usgs":true,"family":"Freeman","given":"Philip A.","email":"pfreeman@usgs.gov","affiliations":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"preferred":true,"id":437455,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Attanasi, Emil D. 0000-0001-6845-7160 attanasi@usgs.gov","orcid":"https://orcid.org/0000-0001-6845-7160","contributorId":193092,"corporation":false,"usgs":true,"family":"Attanasi","given":"Emil","email":"attanasi@usgs.gov","middleInitial":"D.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":437457,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70032583,"text":"70032583 - 2012 - Keanakākoʻi Tephra produced by 300 years of explosive eruptions following collapse of Kīlauea's caldera in about 1500 CE","interactions":[],"lastModifiedDate":"2019-05-30T13:46:06","indexId":"70032583","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"Keanakākoʻi Tephra produced by 300 years of explosive eruptions following collapse of Kīlauea's caldera in about 1500 CE","docAbstract":"The Keanakākoʻi Tephra at Kīlauea Volcano has previously been interpreted by some as the product of a caldera-forming eruption in 1790 CE. Our study, however, finds stratigraphic and 14C evidence that the tephra instead results from numerous eruptions throughout a 300-year period between about 1500 and 1800. The stratigraphic evidence includes: (1) as many as six pure lithic ash beds interleaved in sand dunes made of earlier Keanakākoʻi vitric ash, (2) three lava flows from Kīlauea and Mauna Loa interbedded with the tephra, (3) buried syneruptive cultural structures, (4) numerous intraformational water-cut gullies, and (5) abundant organic layers rich in charcoal within the tephra section. Interpretation of 97 new accelerator mass spectrometry (AMS) 14C ages and 4 previous conventional ages suggests that explosive eruptions began in 1470–1510 CE, and that explosive activity continued episodically until the early 1800s, probably with two periods of quiescence lasting several decades. Kīlauea's caldera, rather than forming in 1790, predates the first eruption of the Keanakākoʻi and collapsed in 1470–1510, immediately following, and perhaps causing, the end of the 60-year-long, 4–6 km3 ʻAilāʻau eruption from the east side of Kīlauea's summit area. The caldera was several hundred meters deep when the Keanakākoʻi began erupting, consistent with oral tradition, and probably had a volume of 4–6 km3. The caldera formed by collapse, but no eruption of lava coincided with its formation. A large volume of magma may have quickly drained from the summit reservoir and intruded into the east rift zone, perhaps in response to a major south-flank slip event, leading to summit collapse. Alternatively, magma may have slowly drained from the reservoir during the prolonged ʻAilāʻau eruption, causing episodic collapses before the final, largest downdrop took place. Two prolonged periods of episodic explosive eruptions are known at Kīlauea, the Keanakākoʻi and the Uwēkahuna Tephra (Fiske et al., 2009), and both occurred when a deep caldera existed, probably with a floor at or below the water table, and external water could readily interact with the magmatic system. The next period of intense explosive activity will probably have to await the drastic deepening of the present caldera (or Halemaʻumaʻu Crater) or the formation of a new caldera.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.jvolgeores.2011.11.009","issn":"03770273","usgsCitation":"Swanson, D., Rose, T.R., Fiske, R.S., and McGeehin, J., 2012, Keanakākoʻi Tephra produced by 300 years of explosive eruptions following collapse of Kīlauea's caldera in about 1500 CE: Journal of Volcanology and Geothermal Research, v. 215-216, p. 8-25, https://doi.org/10.1016/j.jvolgeores.2011.11.009.","productDescription":"18 p.","startPage":"8","endPage":"25","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":213696,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jvolgeores.2011.11.009"},{"id":241350,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea Volcano","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -155.35491943359375,\n 19.321511226817176\n ],\n [\n -155.35491943359375,\n 19.439399401246273\n ],\n [\n -155.17913818359375,\n 19.439399401246273\n ],\n [\n -155.17913818359375,\n 19.321511226817176\n ],\n [\n -155.35491943359375,\n 19.321511226817176\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"215-216","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a406be4b0c8380cd64d4b","contributors":{"authors":[{"text":"Swanson, Donald A. 0000-0002-1680-3591 donswan@usgs.gov","orcid":"https://orcid.org/0000-0002-1680-3591","contributorId":3137,"corporation":false,"usgs":true,"family":"Swanson","given":"Donald A.","email":"donswan@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":436917,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rose, Timothy R.","contributorId":31275,"corporation":false,"usgs":true,"family":"Rose","given":"Timothy","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":436920,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fiske, Richard S.","contributorId":17984,"corporation":false,"usgs":true,"family":"Fiske","given":"Richard","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":436918,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McGeehin, John P. 0000-0002-5320-6091 mcgeehin@usgs.gov","orcid":"https://orcid.org/0000-0002-5320-6091","contributorId":3444,"corporation":false,"usgs":true,"family":"McGeehin","given":"John P.","email":"mcgeehin@usgs.gov","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":436919,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70041778,"text":"70041778 - 2012 - Mississippi Sound","interactions":[],"lastModifiedDate":"2022-12-21T16:07:21.754422","indexId":"70041778","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"chapter":"I","title":"Mississippi Sound","docAbstract":"The Mississippi Sound is the primary body of water off the Mississippi Coast, extending from Lake Borgne, La. in the west to Mobile Bay, Ala. in the east and bordered by the barrier islands--Cat, Ship, Horn, Petit Bois, and Dauphin Islands--of Gulf Islands National Seashore to the south (Figure 1). It encompasses an estuary 293 km2 (113 mi2) large with a watershed of 259 km2 (100 mi2) and 44 km2 (17 mi2) of tidal marsh (Klein and others, b., 1998). It is approximately 129 km (80 mi) long, 3 m (10 ft) deep, and varies in width from 7.2 to 22.5 km (4.5 to 14 mi) (Klein and others, a., 1998). Average tidal range is 0.6 m (1.96 ft), with local water depth and surface level fluctuations largely affected by wind (Klein and others, b., 1998). The climate is semitropical/subtropical with south-southeast winds at approximately 10.4 kph (6.5 mph).
Major rivers draining into Mississippi Sound, including the Pearl, Pascagoula, and Alabama Rivers, tend to carry high sediment loads (Klein and others, b., 1998). Inland fresh water drainage from these and other smaller rivers, as well as St. Louis and Biloxi Bays, create an estuarine environment in the Sound. Variable salinity levels can affect the productivity and survival of organisms living in the Sound, as well as economic and recreational activities. Predominate vegetation includes Juncus roemerianus (black needlerush) and Spartina alterniflora (smooth cordgrass). Shrimp, crab, oysters, and multiple species of finfish can be found in the waters of the Mississippi Sound.
","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Emergent wetlands status and trends in the northern Gulf of Mexico: 1950-2010","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"conferenceTitle":"2013 Gulf of Mexico Alliance (GOMA) All Hands Meeting","conferenceDate":"June 25-27, 2013","conferenceLocation":"Tampa, FL","language":"English","publisher":"U.S. Geological Survey and U.S. Environmental Protection Agency","usgsCitation":"Handley, L.R., Spear, K.A., Leggett, A., and Thatcher, C.A., 2012, Mississippi Sound, 16 p.","productDescription":"16 p.","ipdsId":"IP-037810","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"links":[{"id":344094,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":344091,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://gom.usgs.gov/web/Site/EmWetStatusTrends"}],"country":"United States","state":"Mississippi","otherGeospatial":"Mississippi Sound","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -88.50173950195312,\n 30.104741820318186\n ],\n [\n -88.50173950195312,\n 30.104741820318186\n ],\n [\n -88.50173950195312,\n 30.104741820318186\n ],\n [\n -88.50173950195312,\n 30.104741820318186\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -88.5,\n 30.103553765506575\n ],\n [\n -88.5,\n 30.103553765506575\n ],\n [\n -88.5,\n 30.103553765506575\n ],\n [\n -88.5,\n 30.103553765506575\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -88.17489624023438,\n 30.602457940999596\n ],\n [\n -88.17489624023438,\n 30.602457940999596\n ],\n [\n -88.17489624023438,\n 30.602457940999596\n ],\n [\n -88.17489624023438,\n 30.602457940999596\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -88.5,\n 30.15\n ],\n [\n -88.5,\n 30.53\n ],\n [\n -89.3,\n 30.53\n ],\n [\n -89.3,\n 30.4\n ],\n [\n -89.5,\n 30.4\n ],\n [\n -89.5,\n 30.3\n ],\n [\n -89.3,\n 30.3\n ],\n [\n -89.3,\n 30.15\n ],\n [\n -88.5,\n 30.15\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"59706fdee4b0d1f9f065ab01","contributors":{"authors":[{"text":"Handley, Lawrence R. handleyl@usgs.gov","contributorId":3459,"corporation":false,"usgs":true,"family":"Handley","given":"Lawrence","email":"handleyl@usgs.gov","middleInitial":"R.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":true,"id":743020,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Spear, Kathryn A. 0000-0001-8942-2856 speark@usgs.gov","orcid":"https://orcid.org/0000-0001-8942-2856","contributorId":1949,"corporation":false,"usgs":true,"family":"Spear","given":"Kathryn","email":"speark@usgs.gov","middleInitial":"A.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":true,"id":705770,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Leggett, Ali","contributorId":115802,"corporation":false,"usgs":true,"family":"Leggett","given":"Ali","email":"","affiliations":[],"preferred":false,"id":705771,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Thatcher, Cindy A. 0000-0003-0331-071X thatcherc@usgs.gov","orcid":"https://orcid.org/0000-0003-0331-071X","contributorId":2868,"corporation":false,"usgs":true,"family":"Thatcher","given":"Cindy","email":"thatcherc@usgs.gov","middleInitial":"A.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":242,"text":"Eastern Geographic Science Center","active":true,"usgs":true},{"id":423,"text":"National Geospatial Program","active":true,"usgs":true}],"preferred":false,"id":705772,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70044362,"text":"70044362 - 2012 - Climate variability during the Medieval Climate Anomaly and Little Ice Age based on ostracod faunas and shell geochemistry from Biscayne Bay, Florida","interactions":[],"lastModifiedDate":"2022-12-27T16:33:49.06079","indexId":"70044362","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"subseriesTitle":"Developments in Quaternary Sciences","chapter":"14","title":"Climate variability during the Medieval Climate Anomaly and Little Ice Age based on ostracod faunas and shell geochemistry from Biscayne Bay, Florida","docAbstract":"An 800-year-long environmental history of Biscayne Bay, Florida, is reconstructed from ostracod faunal and shell geochemical (oxygen, carbon isotopes, Mg/Ca ratios) studies of sediment cores from three mudbanks in the central and southern parts of the bay. Using calibrations derived from analyses of modern Biscayne and Florida Bay ostracods, palaeosalinity oscillations associated with changes in precipitation were identified. These oscillations reflect multidecadal- and centennial-scale climate variability associated with the Atlantic Multidecadal Oscillation during the late Medieval Climate Anomaly (MCA) and the Little Ice Age (LIA). Evidence suggests wetter regional climate during the MCA and drier conditions during the LIA. In addition, twentieth century anthropogenic modifications to Everglades hydrology influenced bay circulation and/or processes controlling carbon isotopic composition.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Ostracoda as proxies for quaternary climate change","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Elsevier","doi":"10.1016/B978-0-444-53636-5.00014-7","usgsCitation":"Cronin, T.M., Wingard, G.L., Dwyer, G., Swart, P.K., Willard, D.A., and Albietz, J., 2012, Climate variability during the Medieval Climate Anomaly and Little Ice Age based on ostracod faunas and shell geochemistry from Biscayne Bay, Florida, chap. 14 of Ostracoda as proxies for quaternary climate change, v. 17, p. 241-262, https://doi.org/10.1016/B978-0-444-53636-5.00014-7.","productDescription":"22 p.","startPage":"241","endPage":"262","numberOfPages":"22","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-021778","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":271305,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Biscayne Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -80.16998291015625,\n 25.68856292610355\n ],\n [\n -80.1507568359375,\n 25.729395396693132\n ],\n [\n -80.19058227539062,\n 25.76526690492097\n ],\n [\n -80.23727416992188,\n 25.739292066931647\n ],\n [\n -80.25238037109375,\n 25.68732535984301\n ],\n [\n -80.28396606445312,\n 25.62914524992192\n ],\n [\n -80.30593872070311,\n 25.618001141542337\n ],\n [\n -80.30868530273438,\n 25.564742726875785\n ],\n [\n -80.321044921875,\n 25.541202389740473\n ],\n [\n -80.33340454101562,\n 25.533767638544543\n ],\n [\n -80.34439086914062,\n 25.485430526043555\n ],\n [\n -80.33477783203125,\n 25.433353427832156\n ],\n [\n -80.321044921875,\n 25.381253810395094\n ],\n [\n -80.34027099609375,\n 25.33657909726809\n ],\n [\n -80.31417846679686,\n 25.30554528239941\n ],\n [\n -80.28259277343749,\n 25.31920114076412\n ],\n [\n -80.25238037109375,\n 25.36760495535992\n ],\n [\n -80.21255493164061,\n 25.40854689267053\n ],\n [\n -80.1947021484375,\n 25.45443496795258\n ],\n [\n -80.18096923828124,\n 25.501545058832342\n ],\n [\n -80.15487670898438,\n 25.67866203603157\n ],\n [\n -80.16998291015625,\n 25.68856292610355\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"17","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5173b8e6e4b0e619a5806ed9","contributors":{"authors":[{"text":"Cronin, Thomas M. 0000-0002-2643-0979 tcronin@usgs.gov","orcid":"https://orcid.org/0000-0002-2643-0979","contributorId":2579,"corporation":false,"usgs":true,"family":"Cronin","given":"Thomas","email":"tcronin@usgs.gov","middleInitial":"M.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":475373,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wingard, G. Lynn 0000-0002-3833-5207 lwingard@usgs.gov","orcid":"https://orcid.org/0000-0002-3833-5207","contributorId":605,"corporation":false,"usgs":true,"family":"Wingard","given":"G.","email":"lwingard@usgs.gov","middleInitial":"Lynn","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":475375,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dwyer, Gary S.","contributorId":67642,"corporation":false,"usgs":true,"family":"Dwyer","given":"Gary S.","affiliations":[],"preferred":false,"id":475372,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Swart, Peter K.","contributorId":96832,"corporation":false,"usgs":false,"family":"Swart","given":"Peter","email":"","middleInitial":"K.","affiliations":[{"id":5112,"text":"University of Miami","active":true,"usgs":false}],"preferred":false,"id":475377,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Willard, Debra A. 0000-0003-4878-0942 dwillard@usgs.gov","orcid":"https://orcid.org/0000-0003-4878-0942","contributorId":2076,"corporation":false,"usgs":true,"family":"Willard","given":"Debra","email":"dwillard@usgs.gov","middleInitial":"A.","affiliations":[{"id":411,"text":"National Climate Change and Wildlife Science Center","active":true,"usgs":true},{"id":24693,"text":"Climate Research and Development","active":true,"usgs":true}],"preferred":true,"id":475376,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Albietz, Jessica","contributorId":108207,"corporation":false,"usgs":true,"family":"Albietz","given":"Jessica","email":"","affiliations":[],"preferred":false,"id":475374,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70046057,"text":"70046057 - 2012 - Sequential simulation approach to modeling of multi-seam coal deposits with an application to the assessment of a Louisiana lignite","interactions":[],"lastModifiedDate":"2013-06-17T14:43:46","indexId":"70046057","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2832,"text":"Natural Resources Research","onlineIssn":"1573-8981","printIssn":"1520-7439","active":true,"publicationSubtype":{"id":10}},"title":"Sequential simulation approach to modeling of multi-seam coal deposits with an application to the assessment of a Louisiana lignite","docAbstract":"There are multiple ways to characterize uncertainty in the assessment of coal resources, but not all of them are equally satisfactory. Increasingly, the tendency is toward borrowing from the statistical tools developed in the last 50 years for the quantitative assessment of other mineral commodities. Here, we briefly review the most recent of such methods and formulate a procedure for the systematic assessment of multi-seam coal deposits taking into account several geological factors, such as fluctuations in thickness, erosion, oxidation, and bed boundaries. A lignite deposit explored in three stages is used for validating models based on comparing a first set of drill holes against data from infill and development drilling. Results were fully consistent with reality, providing a variety of maps, histograms, and scatterplots characterizing the deposit and associated uncertainty in the assessments. The geostatistical approach was particularly informative in providing a probability distribution modeling deposit wide uncertainty about total resources and a cumulative distribution of coal tonnage as a function of local uncertainty.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Natural Resources Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","doi":"10.1007/s11053-012-9185-1","usgsCitation":"Olea, R., and Luppens, J.A., 2012, Sequential simulation approach to modeling of multi-seam coal deposits with an application to the assessment of a Louisiana lignite: Natural Resources Research, v. 21, no. 4, p. 443-459, https://doi.org/10.1007/s11053-012-9185-1.","productDescription":"17 p.","startPage":"443","endPage":"459","ipdsId":"IP-038710","costCenters":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":273847,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":273846,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s11053-012-9185-1"}],"country":"United States","state":"Louisiana","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -94.04,28.92 ], [ -94.04,33.01 ], [ -88.81,33.01 ], [ -88.81,28.92 ], [ -94.04,28.92 ] ] ] } } ] }","volume":"21","issue":"4","noUsgsAuthors":false,"publicationDate":"2012-08-23","publicationStatus":"PW","scienceBaseUri":"51c02ff5e4b0ee1529ed3d51","contributors":{"authors":[{"text":"Olea, Ricardo A. 0000-0003-4308-0808","orcid":"https://orcid.org/0000-0003-4308-0808","contributorId":47873,"corporation":false,"usgs":true,"family":"Olea","given":"Ricardo A.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":478783,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Luppens, James A. 0000-0001-7607-8750 jluppens@usgs.gov","orcid":"https://orcid.org/0000-0001-7607-8750","contributorId":550,"corporation":false,"usgs":true,"family":"Luppens","given":"James","email":"jluppens@usgs.gov","middleInitial":"A.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":478782,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70043333,"text":"70043333 - 2012 - Old groundwater in parts of the upper Patapsco aquifer, Atlantic Coastal Plain, Maryland, USA: Evidence from radiocarbon, chlorine-36 and helium-4","interactions":[],"lastModifiedDate":"2018-03-21T15:43:23","indexId":"70043333","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1923,"text":"Hydrogeology Journal","active":true,"publicationSubtype":{"id":10}},"title":"Old groundwater in parts of the upper Patapsco aquifer, Atlantic Coastal Plain, Maryland, USA: Evidence from radiocarbon, chlorine-36 and helium-4","docAbstract":"Apparent groundwater ages along two flow paths in the upper Patapsco aquifer of the Maryland Atlantic Coastal Plain, USA, were estimated using 14C, 36Cl and 4He data. Most of the ages range from modern to about 500 ka, with one sample at 117 km downgradient from the recharge area dated by radiogenic 4He accumulation at more than one Ma. Last glacial maximum (LGM) water was located about 20 km downgradient on the northern flow path, where the radiocarbon age was 21.5 ka, paleorecharge temperatures were 0.5–1.5 °C (a maximum cooling of about 12 °C relative to the modern mean annual temperature of 13 °C), and Cl–, Cl/Br, and stable isotopes of water were minimum. Low recharge temperatures (typically 5–7 °C) indicate that recharge occurred predominantly during glacial periods when coastal heads were lowest due to low sea-level stand. Flow velocities averaged about 1.0 m a–1 in upgradient parts of the upper Patapsco aquifer and decreased from 0.13 to 0.04 m a–1 at 40 and 80 km further downgradient, respectively. This study demonstrates that most water in the upper Patapsco aquifer is non-renewable on human timescales under natural gradients, thus highlighting the importance of effective water-supply management to prolong the resource.
","language":"English","publisher":"Springer","doi":"10.1007/s10040-012-0871-1","usgsCitation":"Plummer, N., Eggleston, J.R., Raffensperger, J.P., Hunt, A.G., Casile, G.C., and Andreasen, D.C., 2012, Old groundwater in parts of the upper Patapsco aquifer, Atlantic Coastal Plain, Maryland, USA: Evidence from radiocarbon, chlorine-36 and helium-4: Hydrogeology Journal, v. 20, no. 7, p. 1269-1294, https://doi.org/10.1007/s10040-012-0871-1.","productDescription":"26 p.","startPage":"1269","endPage":"1294","additionalOnlineFiles":"N","ipdsId":"IP-036422","costCenters":[{"id":146,"text":"Branch of Regional Research-Eastern Region","active":false,"usgs":true}],"links":[{"id":270121,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Maryland","county":"Anne Arundel","city":"Baltimore","volume":"20","issue":"7","noUsgsAuthors":false,"publicationDate":"2012-06-07","publicationStatus":"PW","scienceBaseUri":"5152c3a0e4b01197b08e9cdc","contributors":{"authors":[{"text":"Plummer, Niel 0000-0002-4020-1013 nplummer@usgs.gov","orcid":"https://orcid.org/0000-0002-4020-1013","contributorId":190100,"corporation":false,"usgs":true,"family":"Plummer","given":"Niel","email":"nplummer@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":473401,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Eggleston, John R. 0000-0001-6633-3041 jegglest@usgs.gov","orcid":"https://orcid.org/0000-0001-6633-3041","contributorId":3068,"corporation":false,"usgs":true,"family":"Eggleston","given":"John","email":"jegglest@usgs.gov","middleInitial":"R.","affiliations":[{"id":614,"text":"Virginia Water Science Center","active":true,"usgs":true}],"preferred":true,"id":473403,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Raffensperger, Jeff P. 0000-0001-9275-6646 jpraffen@usgs.gov","orcid":"https://orcid.org/0000-0001-9275-6646","contributorId":199119,"corporation":false,"usgs":true,"family":"Raffensperger","given":"Jeff","email":"jpraffen@usgs.gov","middleInitial":"P.","affiliations":[{"id":374,"text":"Maryland Water Science Center","active":true,"usgs":true}],"preferred":true,"id":473405,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hunt, Andrew G. 0000-0002-3810-8610 ahunt@usgs.gov","orcid":"https://orcid.org/0000-0002-3810-8610","contributorId":1582,"corporation":false,"usgs":true,"family":"Hunt","given":"Andrew","email":"ahunt@usgs.gov","middleInitial":"G.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":473402,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Casile, Gerolamo C. jcasile@usgs.gov","contributorId":4007,"corporation":false,"usgs":true,"family":"Casile","given":"Gerolamo","email":"jcasile@usgs.gov","middleInitial":"C.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":473404,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Andreasen, D. C.","contributorId":32565,"corporation":false,"usgs":true,"family":"Andreasen","given":"D.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":473406,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70032641,"text":"70032641 - 2012 - Population fragmentation and inter-ecosystem movements of grizzly bears in Western Canada and the Northern United States","interactions":[],"lastModifiedDate":"2012-03-12T17:21:22","indexId":"70032641","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3773,"text":"Wildlife Monographs","active":true,"publicationSubtype":{"id":10}},"title":"Population fragmentation and inter-ecosystem movements of grizzly bears in Western Canada and the Northern United States","docAbstract":"Population fragmentation compromises population viability, reduces a species ability to respond to climate change, and ultimately may reduce biodiversity. We studied the current state and potential causes of fragmentation in grizzly bears over approximately 1,000,000 km 2 of western Canada, the northern United States (US), and southeast Alaska. We compiled much of our data from projects undertaken with a variety of research objectives including population estimation and trend, landscape fragmentation, habitat selection, vital rates, and response to human development. Our primary analytical techniques stemmed from genetic analysis of 3,134 bears, supplemented with radiotelemetry data from 792 bears. We used 15 locus microsatellite data coupled withmeasures of genetic distance, isolation-by-distance (IBD) analysis, analysis of covariance (ANCOVA), linear multiple regression, multi-factorial correspondence analysis (to identify population divisions or fractures with no a priori assumption of group membership), and population-assignment methods to detect individual migrants between immediately adjacent areas. These data corroborated observations of inter-area movements from our telemetry database. In northern areas, we found a spatial genetic pattern of IBD, although there was evidence of natural fragmentation from the rugged heavily glaciated coast mountains of British Columbia (BC) and the Yukon. These results contrasted with the spatial pattern of fragmentation in more southern parts of their distribution. Near the Canada-US border area, we found extensive fragmentation that corresponded to settled mountain valleys andmajor highways. Genetic distances across developed valleys were elevated relative to those across undeveloped valleys in central and northern BC. In disturbed areas, most inter-area movements detected were made by male bears, with few female migrants identified. North-south movements within mountain ranges (Mts) and across BC Highway 3 were more common than east-west movements across settled mountain valleys separating Mts. Our results suggest that relatively distinct subpopulations exist in this region, including the Cabinet, Selkirk South, and the decadesisolated Yellowstone populations. Current movement rates do not appear sufficient to consider the subpopulations we identify along the Canada-US border as 1 inter-breeding unit. Although we detected enough male movement to mediate gene flow, the current low rate of female movement detected among areas is insufficient to provide a demographic rescue effect between areas in the immediate future (0-15 yr). In Alberta, we found fragmentation corresponded to major east-west highways (Highways 3, 11, 16, and 43) and most inter-area movements were made by males. Gene flow and movement rates between Alberta and BC were highest across the Continental Divide south of Highway 1 and north of Highway 16. In the central region between Highways 1 and 11, we found evidence of natural fragmentation associated with the extensive glaciers and icefields along the Continental Divide. The discontinuities that we identified would form appropriate boundaries formanagement units. We related sex-specific movement rates between adjacent areas to several metrics of human use (highway traffic, settlement, and humancaused mortality) to understand the causes of fragmentation. This analysis used data from 1,508 bears sampled over a 161,500-km 2 area in southeastern BC, western Alberta, northern Idaho, and northern Montana during 1979-2007. This area was bisected by numerous human transportation and settlement corridors of varying intensity and complexity. We used multiple linear regression and ANCOVA to document the responses of female and male bears to disturbance. Males and females both demonstrated reduced movement rates with increasing settlement and traffic. However, females reduced their movement rates dramatically when settlement increased to >20% of the fracture zone. At this same","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wildlife Monographs","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/wmon.6","issn":"00840173","usgsCitation":"Proctor, M., Paetkau, D., McLellan, B.N., Stenhouse, G., Kendall, K., Mace, R., Kasworm, W., Servheen, C., Lausen, C., Gibeau, M., Wakkinen, W., Haroldson, M., Mowat, G., Apps, C., Ciarniello, L., Barclay, R., Boyce, M., Schwartz, C., and Strobeck, C., 2012, Population fragmentation and inter-ecosystem movements of grizzly bears in Western Canada and the Northern United States: Wildlife Monographs, no. 180, p. 1-46, https://doi.org/10.1002/wmon.6.","startPage":"1","endPage":"46","numberOfPages":"46","costCenters":[],"links":[{"id":241257,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213612,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/wmon.6"}],"issue":"180","noUsgsAuthors":false,"publicationDate":"2011-12-20","publicationStatus":"PW","scienceBaseUri":"505a7d6fe4b0c8380cd79f41","contributors":{"authors":[{"text":"Proctor, M.F.","contributorId":108320,"corporation":false,"usgs":true,"family":"Proctor","given":"M.F.","email":"","affiliations":[],"preferred":false,"id":437223,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Paetkau, David","contributorId":97712,"corporation":false,"usgs":false,"family":"Paetkau","given":"David","email":"","affiliations":[],"preferred":false,"id":437219,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McLellan, B. N.","contributorId":82929,"corporation":false,"usgs":false,"family":"McLellan","given":"B.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":437217,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stenhouse, G.B.","contributorId":55217,"corporation":false,"usgs":true,"family":"Stenhouse","given":"G.B.","email":"","affiliations":[],"preferred":false,"id":437213,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kendall, K.C.","contributorId":39716,"corporation":false,"usgs":true,"family":"Kendall","given":"K.C.","email":"","affiliations":[],"preferred":false,"id":437210,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Mace, R.D.","contributorId":103881,"corporation":false,"usgs":true,"family":"Mace","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":437220,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Kasworm, W.F.","contributorId":66922,"corporation":false,"usgs":true,"family":"Kasworm","given":"W.F.","affiliations":[],"preferred":false,"id":437214,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Servheen, C.","contributorId":68680,"corporation":false,"usgs":true,"family":"Servheen","given":"C.","affiliations":[],"preferred":false,"id":437215,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Lausen, C.L.","contributorId":44358,"corporation":false,"usgs":true,"family":"Lausen","given":"C.L.","affiliations":[],"preferred":false,"id":437212,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Gibeau, M.L.","contributorId":39202,"corporation":false,"usgs":true,"family":"Gibeau","given":"M.L.","affiliations":[],"preferred":false,"id":437209,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Wakkinen, W.L.","contributorId":33931,"corporation":false,"usgs":true,"family":"Wakkinen","given":"W.L.","affiliations":[],"preferred":false,"id":437208,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Haroldson, M.A. 0000-0002-7457-7676","orcid":"https://orcid.org/0000-0002-7457-7676","contributorId":108047,"corporation":false,"usgs":true,"family":"Haroldson","given":"M.A.","affiliations":[],"preferred":false,"id":437222,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Mowat, G.","contributorId":23341,"corporation":false,"usgs":true,"family":"Mowat","given":"G.","affiliations":[],"preferred":false,"id":437206,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Apps, C.D.","contributorId":40433,"corporation":false,"usgs":true,"family":"Apps","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":437211,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Ciarniello, L.M.","contributorId":74963,"corporation":false,"usgs":true,"family":"Ciarniello","given":"L.M.","email":"","affiliations":[],"preferred":false,"id":437216,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Barclay, R.M.R.","contributorId":107943,"corporation":false,"usgs":true,"family":"Barclay","given":"R.M.R.","email":"","affiliations":[],"preferred":false,"id":437221,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Boyce, M.S.","contributorId":16354,"corporation":false,"usgs":true,"family":"Boyce","given":"M.S.","email":"","affiliations":[],"preferred":false,"id":437205,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Schwartz, C.C.","contributorId":33658,"corporation":false,"usgs":true,"family":"Schwartz","given":"C.C.","email":"","affiliations":[],"preferred":false,"id":437207,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Strobeck, C.","contributorId":90545,"corporation":false,"usgs":true,"family":"Strobeck","given":"C.","email":"","affiliations":[],"preferred":false,"id":437218,"contributorType":{"id":1,"text":"Authors"},"rank":19}]}} ,{"id":70032635,"text":"70032635 - 2012 - Mineral parageneses, regional architecture, and tectonic evolution of Franciscan metagraywackes, Cape Mendocino-Garberville-Covelo 30' x 60' quadrangles, northwest California","interactions":[],"lastModifiedDate":"2017-09-01T09:27:38","indexId":"70032635","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3524,"text":"Tectonics","active":true,"publicationSubtype":{"id":10}},"title":"Mineral parageneses, regional architecture, and tectonic evolution of Franciscan metagraywackes, Cape Mendocino-Garberville-Covelo 30' x 60' quadrangles, northwest California","docAbstract":"The Franciscan Complex is a classic subduction-zone assemblage. In northwest California, it comprises a stack of west vergent thrust sheets: westernmost Eastern Belt outliers; Central Belt mélange; Coastal Belt Yager terrane; Coastal Belt Coastal terrane; Coastal Belt King Range/False Cape terranes. We collected samples and determined P-T conditions of recrystallization for 88 medium-fine-grained metasandstones to assess their subduction-exhumation histories and assembly of the host allochthons. Feebly recrystallized Yager, Coastal, and King Range strata retain clear detrital features. Scattered neoblastic prehnite occurs in several Coastal terrane metasandstones; traces of possible pumpellyite are present in three Yager metaclastic rocks. Pumpellyite ± lawsonite ± aragonite-bearing Central Belt metasandstones are moderately deformed and reconstituted. Intensely contorted, thoroughly recrystallized Eastern Belt affinity quartzose metagraywackes contain lawsonite + jadeitic pyroxene ± aragonite ± glaucophane. We microprobed neoblastic phases in 23 rocks, documenting mineral parageneses that constrain the tectonic accretion and metamorphic P-T evolution of these sheets. Quasi-stable mineral assemblages typify Eastern Belt metasandstones, but mm-sized domains in the Central and Coastal belt rocks failed to achieve chemical equilibrium. Eastern Belt slabs rose from subduction depths approaching 25–30 km, whereas structurally lower Central Belt mélanges returned from ∼15–18 km. Coastal Belt assemblages suggest burial depths less than 5–8 km. Eastern and Central belt allochthons sequentially decoupled from the downgoing oceanic lithosphere and ascended into the accretionary margin; K-feldspar-rich Coastal Belt rocks were stranded along the continental edge without undergoing appreciable subduction, probably during Paleogene unroofing of the older, deeply subducted units of the Franciscan Complex in east-vergent crustal wedges.
","language":"English","publisher":"AGU","doi":"10.1029/2011TC002987","issn":"02787407","usgsCitation":"Ernst, W., and McLaughlin, R.J., 2012, Mineral parageneses, regional architecture, and tectonic evolution of Franciscan metagraywackes, Cape Mendocino-Garberville-Covelo 30' x 60' quadrangles, northwest California: Tectonics, v. 31, no. 1, Article TC1001, https://doi.org/10.1029/2011TC002987.","productDescription":"Article TC1001","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-033454","costCenters":[{"id":309,"text":"Geology and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":241657,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213979,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2011TC002987"}],"country":"United States","state":"California","otherGeospatial":"Cape Mendocino-Garberville-Covelo","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -124.53002929687499,\n 39.2407625100131\n ],\n [\n -124.53002929687499,\n 40.455307212131494\n ],\n [\n -122.76123046875,\n 40.455307212131494\n ],\n [\n -122.76123046875,\n 39.2407625100131\n ],\n [\n -124.53002929687499,\n 39.2407625100131\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"31","issue":"1","noUsgsAuthors":false,"publicationDate":"2012-01-12","publicationStatus":"PW","scienceBaseUri":"505a57a1e4b0c8380cd6ddd0","contributors":{"authors":[{"text":"Ernst, W. G.","contributorId":18456,"corporation":false,"usgs":true,"family":"Ernst","given":"W. G.","affiliations":[],"preferred":false,"id":437158,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McLaughlin, Robert J. 0000-0002-4390-2288 rjmcl@usgs.gov","orcid":"https://orcid.org/0000-0002-4390-2288","contributorId":1428,"corporation":false,"usgs":true,"family":"McLaughlin","given":"Robert","email":"rjmcl@usgs.gov","middleInitial":"J.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":437159,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70042048,"text":"ofr20121218 - 2012 - Preliminary physical stratigraphy, biostratigraphy, and geophysical data of the USGS South Dover Bridge Core, Talbot County, Maryland","interactions":[],"lastModifiedDate":"2013-01-14T13:03:01","indexId":"ofr20121218","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2012-1218","title":"Preliminary physical stratigraphy, biostratigraphy, and geophysical data of the USGS South Dover Bridge Core, Talbot County, Maryland","docAbstract":"The South Dover Bridge (SDB) corehole was drilled in October 2007 in Talbot County, Maryland. The main purpose for drilling this corehole was to characterize the Upper Cretaceous and Paleogene lithostratigraphy and biostratigraphy of the aquifers and confining units of this region. The data obtained from this core also will be used as a guide to geologic mapping and to help interpret well data from the eastern part of the Washington East 1:100,000-scale map near the town of Easton, Md. Core drilling was conducted to a depth of 700 feet (ft). The Cretaceous section was not penetrated due to technical problems during drilling. This project was funded by the U.S. Geological Survey’s (USGS) Eastern Geology and Paleoclimate Science Center (EGPSC) as part of the Geology of the Atlantic Watersheds Project; this project was carried out in cooperation with the Maryland Geological Survey (MGS) through partnerships with the Aquifer Characterization Program of the USGS’s Maryland-Delaware-District of Columbia Water Science Center and the National Cooperative Geologic Mapping Program.\n\nThe SDB corehole was drilled by the USGS drilling crew in the northeastern corner of the Trappe 7.5-minute quadrangle, near the type locality of the Boston Cliffs member of the Choptank Formation. Geophysical logs (gamma ray, single point resistance, and 16-inch and 64-inch normal resistivity) were run to a depth of 527.5 ft; the total depth of 700.0 ft could not be reached because of the collapse of the lower part of the hole. Of the 700.0 ft drilled, 531.8 ft of core were recovered, representing a 76 percent core recovery. The elevation of the top of the corehole is approximately 12 ft above mean sea level; its coordinates are lat 38°44′49.34″N. and long 76°00′25.09″W. (38.74704N., 76.00697W. in decimal degrees).\n\nA groundwater monitoring well was not installed at this site. The South Dover Bridge corehole was the first corehole that will be used to better understand the geology and hydrology of the Maryland Eastern Shore.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20121218","usgsCitation":"Aleman Gonzalez, W.B., Powars, D.S., Seefelt, E., Edwards, L.E., Self-Trail, J.M., Durand, C.T., Schultz, A.P., and McLaughlin, P., 2012, Preliminary physical stratigraphy, biostratigraphy, and geophysical data of the USGS South Dover Bridge Core, Talbot County, Maryland: U.S. Geological Survey Open-File Report 2012-1218, Report: vi, 16 p.; Download Report, https://doi.org/10.3133/ofr20121218.","productDescription":"Report: vi, 16 p.; Download Report","numberOfPages":"20","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":240,"text":"Eastern Earth Surface Processes Team","active":false,"usgs":true}],"links":[{"id":264687,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr_2012_1218.jpg"},{"id":264685,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2012/1218/ofr2012-1218_MainBody.pdf"},{"id":264686,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2012/1218/ofr2012-1218.zip"},{"id":264684,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2012/1218/"}],"country":"United States","state":"Maryl","county":"Talbot County","otherGeospatial":"South Dover Bridge Corehole","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -76.45,38.58 ], [ -76.45,38.94 ], [ -75.89,38.94 ], [ -75.89,38.58 ], [ -76.45,38.58 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50d49676e4b0c6073c901f55","contributors":{"authors":[{"text":"Aleman Gonzalez, Wilma B.","contributorId":98123,"corporation":false,"usgs":true,"family":"Aleman Gonzalez","given":"Wilma","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":470679,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Powars, David S. 0000-0002-6787-8964 dspowars@usgs.gov","orcid":"https://orcid.org/0000-0002-6787-8964","contributorId":1181,"corporation":false,"usgs":true,"family":"Powars","given":"David","email":"dspowars@usgs.gov","middleInitial":"S.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":470672,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Seefelt, Ellen 0000-0001-6822-7402 eseefelt@usgs.gov","orcid":"https://orcid.org/0000-0001-6822-7402","contributorId":2953,"corporation":false,"usgs":true,"family":"Seefelt","given":"Ellen","email":"eseefelt@usgs.gov","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":470675,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Edwards, Lucy E. 0000-0003-4075-3317 leedward@usgs.gov","orcid":"https://orcid.org/0000-0003-4075-3317","contributorId":2647,"corporation":false,"usgs":true,"family":"Edwards","given":"Lucy","email":"leedward@usgs.gov","middleInitial":"E.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":470674,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Self-Trail, Jean M. jstrail@usgs.gov","contributorId":2205,"corporation":false,"usgs":true,"family":"Self-Trail","given":"Jean","email":"jstrail@usgs.gov","middleInitial":"M.","affiliations":[{"id":596,"text":"U.S. Geological Survey National Center","active":false,"usgs":true}],"preferred":false,"id":470673,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Durand, Colleen T.","contributorId":80495,"corporation":false,"usgs":true,"family":"Durand","given":"Colleen","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":470678,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Schultz, Arthur P. aschultz@usgs.gov","contributorId":3252,"corporation":false,"usgs":true,"family":"Schultz","given":"Arthur","email":"aschultz@usgs.gov","middleInitial":"P.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":470676,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"McLaughlin, Peter P.","contributorId":40023,"corporation":false,"usgs":true,"family":"McLaughlin","given":"Peter P.","affiliations":[],"preferred":false,"id":470677,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70044500,"text":"70044500 - 2012 - Stable water isotopologue ratios in fog and cloud droplets of liquid clouds are not size-dependent","interactions":[],"lastModifiedDate":"2013-05-07T13:36:56","indexId":"70044500","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":922,"text":"Atmospheric Chemistry and Physics","active":true,"publicationSubtype":{"id":10}},"title":"Stable water isotopologue ratios in fog and cloud droplets of liquid clouds are not size-dependent","docAbstract":"In this work, we present the first observations of stable water isotopologue ratios in cloud droplets of different sizes collected simultaneously. We address the question whether the isotope ratio of droplets in a liquid cloud varies as a function of droplet size. Samples were collected from a ground intercepted cloud (= fog) during the Hill Cap Cloud Thuringia 2010 campaign (HCCT-2010) using a three-stage Caltech Active Strand Cloud water Collector (CASCC). An instrument test revealed that no artificial isotopic fractionation occurs during sample collection with the CASCC. Furthermore, we could experimentally confirm the hypothesis that the δ values of cloud droplets of the relevant droplet sizes (μm-range) were not significantly different and thus can be assumed to be in isotopic equilibrium immediately with the surrounding water vapor. However, during the dissolution period of the cloud, when the supersaturation inside the cloud decreased and the cloud began to clear, differences in isotope ratios of the different droplet sizes tended to be larger. This is likely to result from the cloud's heterogeneity, implying that larger and smaller cloud droplets have been collected at different moments in time, delivering isotope ratios from different collection times.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Atmospheric Chemistry and Physics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"European Geosciences Union","doi":"10.5194/acp-12-9855-2012","usgsCitation":"Spiegel, J., Aemisegger, F., Scholl, M., Wienhold, F., Collett, J., Lee, T., van Pinxteren, D., Mertes, S., Tilgner, A., Herrmann, H., Werner, R., Buchmann, N., and Eugster, W., 2012, Stable water isotopologue ratios in fog and cloud droplets of liquid clouds are not size-dependent: Atmospheric Chemistry and Physics, v. 12, p. 9855-9863, https://doi.org/10.5194/acp-12-9855-2012.","productDescription":"9 p.","startPage":"9855","endPage":"9863","numberOfPages":"9","ipdsId":"IP-020677","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"links":[{"id":474619,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5194/acp-12-9855-2012","text":"Publisher Index Page"},{"id":271963,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":271962,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.5194/acp-12-9855-2012"}],"country":"United States","volume":"12","noUsgsAuthors":false,"publicationDate":"2012-10-29","publicationStatus":"PW","scienceBaseUri":"518a227ae4b061e1bd5334c4","contributors":{"authors":[{"text":"Spiegel, J.K.","contributorId":6738,"corporation":false,"usgs":true,"family":"Spiegel","given":"J.K.","email":"","affiliations":[],"preferred":false,"id":475739,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aemisegger, F.","contributorId":105614,"corporation":false,"usgs":true,"family":"Aemisegger","given":"F.","email":"","affiliations":[],"preferred":false,"id":475751,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Scholl, M.","contributorId":32385,"corporation":false,"usgs":true,"family":"Scholl","given":"M.","affiliations":[],"preferred":false,"id":475745,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wienhold, F.G.","contributorId":11489,"corporation":false,"usgs":true,"family":"Wienhold","given":"F.G.","email":"","affiliations":[],"preferred":false,"id":475740,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Collett, J.L. Jr.","contributorId":42426,"corporation":false,"usgs":true,"family":"Collett","given":"J.L.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":475747,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lee, T.","contributorId":91720,"corporation":false,"usgs":true,"family":"Lee","given":"T.","affiliations":[],"preferred":false,"id":475749,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"van Pinxteren, D.","contributorId":18646,"corporation":false,"usgs":true,"family":"van Pinxteren","given":"D.","email":"","affiliations":[],"preferred":false,"id":475744,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Mertes, S.","contributorId":85859,"corporation":false,"usgs":true,"family":"Mertes","given":"S.","email":"","affiliations":[],"preferred":false,"id":475748,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Tilgner, A.","contributorId":14276,"corporation":false,"usgs":true,"family":"Tilgner","given":"A.","email":"","affiliations":[],"preferred":false,"id":475743,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Herrmann, H.","contributorId":12344,"corporation":false,"usgs":true,"family":"Herrmann","given":"H.","email":"","affiliations":[],"preferred":false,"id":475742,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Werner, Roland A.","contributorId":103488,"corporation":false,"usgs":true,"family":"Werner","given":"Roland A.","affiliations":[],"preferred":false,"id":475750,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Buchmann, N.","contributorId":11906,"corporation":false,"usgs":true,"family":"Buchmann","given":"N.","affiliations":[],"preferred":false,"id":475741,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Eugster, W.","contributorId":32701,"corporation":false,"usgs":true,"family":"Eugster","given":"W.","email":"","affiliations":[],"preferred":false,"id":475746,"contributorType":{"id":1,"text":"Authors"},"rank":13}]}} ,{"id":70032294,"text":"70032294 - 2012 - The effect of diagenesis and fluid migration on rare earth element distribution in pore fluids of the northern Cascadia accretionary margin","interactions":[],"lastModifiedDate":"2013-04-25T13:32:35","indexId":"70032294","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1213,"text":"Chemical Geology","active":true,"publicationSubtype":{"id":10}},"title":"The effect of diagenesis and fluid migration on rare earth element distribution in pore fluids of the northern Cascadia accretionary margin","docAbstract":"Analytical challenges in obtaining high quality measurements of rare earth elements (REEs) from small pore fluid volumes have limited the application of REEs as deep fluid geochemical tracers. Using a recently developed analytical technique, we analyzed REEs from pore fluids collected from Sites U1325 and U1329, drilled on the northern Cascadia margin during the Integrated Ocean Drilling Program (IODP) Expedition 311, to investigate the REE behavior during diagenesis and their utility as tracers of deep fluid migration. These sites were selected because they represent contrasting settings on an accretionary margin: a ponded basin at the toe of the margin, and the landward Tofino Basin near the shelf's edge. REE concentrations of pore fluid in the methanogenic zone at Sites U1325 and U1329 correlate positively with concentrations of dissolved organic carbon (DOC) and alkalinity. Fractionations across the REE series are driven by preferential complexation of the heavy REEs. Simultaneous enrichment of diagenetic indicators (DOC and alkalinity) and of REEs (in particular the heavy elements Ho to Lu), suggests that the heavy REEs are released during particulate organic carbon (POC) degradation and are subsequently chelated by DOC. REE concentrations are greater at Site U1325, a site where shorter residence times of POC in sulfate-bearing redox zones may enhance REE burial efficiency within sulfidic and methanogenic sediment zones where REE release ensues. Cross-plots of La concentrations versus Cl, Li and Sr delineate a distinct field for the deep fluids (z > 75 mbsf) at Site U1329, and indicate the presence of a fluid not observed at the other sites drilled on the Cascadia margin. Changes in REE patterns, the presence of a positive Eu anomaly, and other available geochemical data for this site suggest a complex hydrology and possible interaction with the igneous Crescent Terrane, located east of the drilled transect.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemical Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.chemgeo.2011.10.010","issn":"00092541","usgsCitation":"Kim, J., Torres, M.E., Haley, B.A., Kastner, M., Pohlman, J., Riedel, M., and Lee, Y., 2012, The effect of diagenesis and fluid migration on rare earth element distribution in pore fluids of the northern Cascadia accretionary margin: Chemical Geology, v. 291, p. 152-165, https://doi.org/10.1016/j.chemgeo.2011.10.010.","productDescription":"14 p.","startPage":"152","endPage":"165","numberOfPages":"14","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":214915,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.chemgeo.2011.10.010"},{"id":242675,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada;United States","city":"Vancouver","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -0.01611111111111111,0.0011111111111111111 ], [ -0.01611111111111111,0.001388888888888889 ], [ -0.01611111111111111,0.001388888888888889 ], [ -0.01611111111111111,0.0011111111111111111 ], [ -0.01611111111111111,0.0011111111111111111 ] ] ] } } ] }","volume":"291","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bab1fe4b08c986b322c30","contributors":{"authors":[{"text":"Kim, Ji-Hoon","contributorId":105547,"corporation":false,"usgs":true,"family":"Kim","given":"Ji-Hoon","email":"","affiliations":[],"preferred":false,"id":435487,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Torres, Marta E.","contributorId":33546,"corporation":false,"usgs":true,"family":"Torres","given":"Marta","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":435483,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Haley, Brian A.","contributorId":43996,"corporation":false,"usgs":true,"family":"Haley","given":"Brian","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":435484,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kastner, Miriam","contributorId":24187,"corporation":false,"usgs":true,"family":"Kastner","given":"Miriam","email":"","affiliations":[],"preferred":false,"id":435482,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pohlman, John W.","contributorId":95288,"corporation":false,"usgs":true,"family":"Pohlman","given":"John W.","affiliations":[],"preferred":false,"id":435486,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Riedel, Michael","contributorId":7518,"corporation":false,"usgs":true,"family":"Riedel","given":"Michael","email":"","affiliations":[],"preferred":false,"id":435481,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Lee, Young-Joo","contributorId":82548,"corporation":false,"usgs":true,"family":"Lee","given":"Young-Joo","email":"","affiliations":[],"preferred":false,"id":435485,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70191928,"text":"70191928 - 2012 - Origins of mineral deposits, Belt-Purcell Basin, United States and Canada: An introduction","interactions":[],"lastModifiedDate":"2020-12-30T16:31:08.376241","indexId":"70191928","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"Origins of mineral deposits, Belt-Purcell Basin, United States and Canada: An introduction","docAbstract":"The fill of the Mesoproterozoic Belt-Purcell Basin, which straddles the United States-Canada border within the Rocky Mountains of western North America (Fig. 1), consists of marine and nonmarine clastic and carbonate strata 15 to 20 km thick. Three giant metal-producing ore deposits or districts account for the bulk of the known metal endowment within the bounds of the Belt-Purcell Basin: (1) the syndepositional Sullivan Pb-Zn-Ag deposit in southern British Columbia (total production: Pb, 8.4 million tonnes [Mt]; Zn, 7.9 Mt; Ag, 0.0093 Mt; Lydon, 2000), (2) the mesothermal Pb-Zn-Ag veins of the Coeur d’Alene district in northern Idaho (total production: Pb, 7.5 Mt; Zn, 3.0 Mt; Ag, 0.052 Mt; Long, 1998; post-1997 data from USGS Annual Minerals Yearbooks), and (3) the Cretaceous porphyry copper deposit and associated polymetallic veins in the Butte district in Montana (total resource: Cu, 35 Mt; Zn, 4.6 Mt; Ag, 0.044 Mt; Long et al., 1998). The Sullivan Mine closed in 2001 after more than 92 years of production. Mining of 26 major vein deposits in the Coeur d’Alene district began in the 1880s and peaked about 1950. Production in the Coeur d’Alene district continues today from the Galena and Lucky Friday Mines (the latter closed for 2012 to refurbish the mile-deep vertical access shaft). Mining at Butte began in 1875, with copper production peaking in 1917. Mining continues today in the eastern upfaulted portion of the Butte porphyry copper deposit at the Continental Mine.
","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/econgeo.107.6.1081","usgsCitation":"Box, S.E., Bookstrom, A.A., and Anderson, R.G., 2012, Origins of mineral deposits, Belt-Purcell Basin, United States and Canada: An introduction: Economic Geology, v. 107, no. 6, p. 1081-1088, https://doi.org/10.2113/econgeo.107.6.1081.","productDescription":"8 p.","startPage":"1081","endPage":"1088","ipdsId":"IP-035764","costCenters":[{"id":662,"text":"Western Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":349517,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, United States","state":"Alberta, British Columbia, Idaho, Montana","otherGeospatial":"Belt-Purcell Basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -117.02636718749999,\n 45.85941212790755\n ],\n [\n -111.4892578125,\n 45.85941212790755\n ],\n [\n -111.4892578125,\n 50.62507306341435\n ],\n [\n -117.02636718749999,\n 50.62507306341435\n ],\n [\n -117.02636718749999,\n 45.85941212790755\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"107","issue":"6","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"5a6105a1e4b06e28e9c25587","contributors":{"authors":[{"text":"Box, Stephen E. 0000-0002-5268-8375 sbox@usgs.gov","orcid":"https://orcid.org/0000-0002-5268-8375","contributorId":1843,"corporation":false,"usgs":true,"family":"Box","given":"Stephen","email":"sbox@usgs.gov","middleInitial":"E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":713743,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bookstrom, Arthur A. 0000-0003-1336-3364 abookstrom@usgs.gov","orcid":"https://orcid.org/0000-0003-1336-3364","contributorId":1542,"corporation":false,"usgs":true,"family":"Bookstrom","given":"Arthur","email":"abookstrom@usgs.gov","middleInitial":"A.","affiliations":[{"id":5056,"text":"Office of the AD Energy and Minerals, and Environmental Health","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":713742,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Anderson, Robert G.","contributorId":197569,"corporation":false,"usgs":false,"family":"Anderson","given":"Robert","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":713744,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}} ,{"id":70192163,"text":"70192163 - 2012 - Illumination of rheological mantle heterogeneity by the M7.2 2010 El Mayor-Cucapah earthquake","interactions":[],"lastModifiedDate":"2017-10-24T14:31:55","indexId":"70192163","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1757,"text":"Geochemistry, Geophysics, Geosystems","active":true,"publicationSubtype":{"id":10}},"title":"Illumination of rheological mantle heterogeneity by the M7.2 2010 El Mayor-Cucapah earthquake","docAbstract":"Major intracontinental strike-slip faults tend to mark boundaries between lithospheric blocks of contrasting mechanical properties along much of their length. Both crustal and mantle heterogeneities can form such boundaries, but the role of crustal versus mantle strength contrasts for localizing strain sufficiently to generate major faults remains unclear. Using the crustal velocity field observed through the Global Positioning System (GPS) in the epicentral area of the M7.2 2010 El Mayor-Cucapah earthquake, Baja California, we find that transient deformation observed after the event is anomalously small in areas of relatively high seismic velocity in the shallow upper mantle (∼50 km depth). This pattern is best explained with a laterally heterogeneous viscoelastic structure that mimics the seismic structure. The mantle of the Southern Colorado River Desert (SCRD) and Peninsular Ranges (PR), which bound the fault system to its east and west, respectively, have anomalously high viscosity and seismic velocity. We hypothesize that compared with the rest of the San Andreas fault (SAF) system to its north, the strike-slip fault system in northern Baja California is narrow because of the presence of the PR and SCRD high-viscosity regions which bound it.","language":"English","publisher":"AGU Publications","doi":"10.1029/2012GC004139","usgsCitation":"Pollitz, F., Bürgmann, R., and Thatcher, W.R., 2012, Illumination of rheological mantle heterogeneity by the M7.2 2010 El Mayor-Cucapah earthquake: Geochemistry, Geophysics, Geosystems, v. 13, no. 6, 17 p., https://doi.org/10.1029/2012GC004139.","productDescription":"17 p.","ipdsId":"IP-037945","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":474634,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2012gc004139","text":"Publisher Index Page"},{"id":347256,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Mexico, United States","state":"Arizona, Baja California, California, Sonora","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -117.5,\n 31.25\n ],\n [\n -113.5,\n 31.25\n ],\n [\n -113.5,\n 33.75\n ],\n [\n -117.5,\n 33.75\n ],\n [\n -117.5,\n 31.25\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"13","issue":"6","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2012-06-02","publicationStatus":"PW","scienceBaseUri":"59f05125e4b0220bbd9a1dc8","contributors":{"authors":[{"text":"Pollitz, Fred F. fpollitz@usgs.gov","contributorId":127702,"corporation":false,"usgs":true,"family":"Pollitz","given":"Fred F.","email":"fpollitz@usgs.gov","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":false,"id":715233,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bürgmann, Roland","contributorId":172422,"corporation":false,"usgs":false,"family":"Bürgmann","given":"Roland","affiliations":[{"id":6609,"text":"UC Berkeley","active":true,"usgs":false}],"preferred":false,"id":715234,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thatcher, Wayne R. 0000-0001-6324-545X thatcher@usgs.gov","orcid":"https://orcid.org/0000-0001-6324-545X","contributorId":2599,"corporation":false,"usgs":true,"family":"Thatcher","given":"Wayne","email":"thatcher@usgs.gov","middleInitial":"R.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":715235,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70192533,"text":"70192533 - 2012 - Use of occupancy models to evaluate expert knowledge-based species-habitat relationships","interactions":[],"lastModifiedDate":"2018-12-21T13:06:14","indexId":"70192533","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":947,"text":"Avian Conservation and Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Use of occupancy models to evaluate expert knowledge-based species-habitat relationships","docAbstract":"Expert knowledge-based species-habitat relationships are used extensively to guide conservation planning, particularly when data are scarce. Purported relationships describe the initial state of knowledge, but are rarely tested. We assessed support in the data for suitability rankings of vegetation types based on expert knowledge for three terrestrial avian species in the South Atlantic Coastal Plain of the United States. Experts used published studies, natural history, survey data, and field experience to rank vegetation types as optimal, suitable, and marginal. We used single-season occupancy models, coupled with land cover and Breeding Bird Survey data, to examine the hypothesis that patterns of occupancy conformed to species-habitat suitability rankings purported by experts. Purported habitat suitability was validated for two of three species. As predicted for the Eastern Wood-Pewee (Contopus virens) and Brown-headed Nuthatch (Sitta pusilla), occupancy was strongly influenced by vegetation types classified as “optimal habitat” by the species suitability rankings for nuthatches and wood-pewees. Contrary to predictions, Red-headed Woodpecker (Melanerpes erythrocephalus) models that included vegetation types as covariates received similar support by the data as models without vegetation types. For all three species, occupancy was also related to sampling latitude. Our results suggest that covariates representing other habitat requirements might be necessary to model occurrence of generalist species like the woodpecker. The modeling approach described herein provides a means to test expert knowledge-based species-habitat relationships, and hence, help guide conservation planning.
","language":"English","publisher":"Avian Conservation and Ecology","doi":"10.5751/ACE-00551-070205","usgsCitation":"Iglecia, M.N., Collazo, J., and McKerrow, A., 2012, Use of occupancy models to evaluate expert knowledge-based species-habitat relationships: Avian Conservation and Ecology, v. 7, no. 2, p. 1-13, https://doi.org/10.5751/ACE-00551-070205.","productDescription":"Article 5; 13 p.","startPage":"1","endPage":"13","ipdsId":"IP-029469","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true},{"id":37226,"text":"Core Science Analytics, Synthesis, and Libraries","active":true,"usgs":true},{"id":38315,"text":"GAP Analysis Project","active":true,"usgs":true}],"links":[{"id":474667,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5751/ace-00551-070205","text":"Publisher Index Page"},{"id":349461,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","issue":"2","publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a6105a0e4b06e28e9c25585","contributors":{"authors":[{"text":"Iglecia, Monica N.","contributorId":200933,"corporation":false,"usgs":false,"family":"Iglecia","given":"Monica","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":723848,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Collazo, Jaime A. 0000-0002-1816-7744 jaime_collazo@usgs.gov","orcid":"https://orcid.org/0000-0002-1816-7744","contributorId":173448,"corporation":false,"usgs":true,"family":"Collazo","given":"Jaime A.","email":"jaime_collazo@usgs.gov","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true},{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"preferred":false,"id":716133,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McKerrow, Alexa 0000-0002-8312-2905 amckerrow@usgs.gov","orcid":"https://orcid.org/0000-0002-8312-2905","contributorId":127753,"corporation":false,"usgs":true,"family":"McKerrow","given":"Alexa","email":"amckerrow@usgs.gov","affiliations":[{"id":208,"text":"Core Science Analytics and Synthesis","active":true,"usgs":true}],"preferred":true,"id":723849,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70176229,"text":"70176229 - 2012 - Definition of Greater Gulf Basin Lower Cretaceous and Upper Cretaceous lower Cenomanian Shale Gas Assessment Unit, United States Gulf of Mexico basin onshore and state waters","interactions":[],"lastModifiedDate":"2018-07-31T11:24:49","indexId":"70176229","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3365,"text":"Search and Discovery","active":true,"publicationSubtype":{"id":10}},"title":"Definition of Greater Gulf Basin Lower Cretaceous and Upper Cretaceous lower Cenomanian Shale Gas Assessment Unit, United States Gulf of Mexico basin onshore and state waters","docAbstract":"An assessment unit (AU) for undiscovered continuous “shale” gas in Lower Cretaceous (Aptian and Albian) and basal Upper Cretaceous (lower Cenomanian) rocks in the USA onshore Gulf of Mexico coastal plain recently was defined by the U.S. Geological Survey (USGS). The AU is part of the Upper Jurassic-Cretaceous-Tertiary Composite Total Petroleum System (TPS) of the Gulf of Mexico Basin. Definition of the AU was conducted as part of the 2010 USGS assessment of undiscovered hydrocarbon resources in Gulf Coast Mesozoic stratigraphic intervals. The purpose of defining the Greater Gulf Basin Lower Cretaceous Shale Gas AU was to propose a hypothetical AU in the Cretaceous part of the Gulf Coast TPS in which there might be continuous “shale” gas, but the AU was not quantitatively assessed by the USGS in 2010.
","language":"English","publisher":"AAPG","usgsCitation":"Dennen, K., and Hackley, P.C., 2012, Definition of Greater Gulf Basin Lower Cretaceous and Upper Cretaceous lower Cenomanian Shale Gas Assessment Unit, United States Gulf of Mexico basin onshore and state waters: Search and Discovery, Article #10429: 37 p.","productDescription":"Article #10429: 37 p.","ipdsId":"IP-033164","costCenters":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":328240,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":356057,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.searchanddiscovery.com/"}],"publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57cfe8b1e4b04836416a0d4b","contributors":{"authors":[{"text":"Dennen, Kristin O.","contributorId":61437,"corporation":false,"usgs":true,"family":"Dennen","given":"Kristin O.","affiliations":[],"preferred":false,"id":647917,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hackley, Paul C. 0000-0002-5957-2551 phackley@usgs.gov","orcid":"https://orcid.org/0000-0002-5957-2551","contributorId":592,"corporation":false,"usgs":true,"family":"Hackley","given":"Paul","email":"phackley@usgs.gov","middleInitial":"C.","affiliations":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true},{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":647918,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70192794,"text":"70192794 - 2012 - A new perspective on the geometry of the San Andreas Fault in southern California and its relationship to lithospheric structure","interactions":[],"lastModifiedDate":"2017-10-31T11:23:28","indexId":"70192794","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"A new perspective on the geometry of the San Andreas Fault in southern California and its relationship to lithospheric structure","docAbstract":"The widely held perception that the San Andreas fault (SAF) is vertical or steeply dipping in most places in southern California may not be correct. From studies of potential‐field data, active‐source imaging, and seismicity, the dip of the SAF is significantly nonvertical in many locations. The direction of dip appears to change in a systematic way through the Transverse Ranges: moderately southwest (55°–75°) in the western bend of the SAF in the Transverse Ranges (Big Bend); vertical to steep in the Mojave Desert; and moderately northeast (37°–65°) in a region extending from San Bernardino to the Salton Sea, spanning the eastern bend of the SAF in the Transverse Ranges. The shape of the modeled SAF is crudely that of a propeller. If confirmed by further studies, the geometry of the modeled SAF would have important implications for tectonics and strong ground motions from SAF earthquakes. The SAF can be traced or projected through the crust to the north side of a well documented high‐velocity body (HVB) in the upper mantle beneath the Transverse Ranges. The north side of this HVB may be an extension of the plate boundary into the mantle, and the HVB would appear to be part of the Pacific plate.
","language":"English","publisher":"Seismological Society of America","doi":"10.1785/0120110041","usgsCitation":"Fuis, G.S., Scheirer, D., Langenheim, V., and Kohler, M.D., 2012, A new perspective on the geometry of the San Andreas Fault in southern California and its relationship to lithospheric structure: Bulletin of the Seismological Society of America, v. 102, no. 1, p. 236-251, https://doi.org/10.1785/0120110041.","productDescription":"16 p.","startPage":"236","endPage":"251","ipdsId":"IP-013720","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":347839,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Andreas Fault","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -120,\n 32\n ],\n [\n -116,\n 32\n ],\n [\n -116,\n 36\n ],\n [\n -120,\n 36\n ],\n [\n -120,\n 32\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"102","issue":"1","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2012-02-15","publicationStatus":"PW","scienceBaseUri":"59f98bc1e4b0531197afa071","contributors":{"authors":[{"text":"Fuis, Gary S. 0000-0002-3078-1544 fuis@usgs.gov","orcid":"https://orcid.org/0000-0002-3078-1544","contributorId":2639,"corporation":false,"usgs":true,"family":"Fuis","given":"Gary","email":"fuis@usgs.gov","middleInitial":"S.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":716967,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scheirer, Daniel S. dscheirer@usgs.gov","contributorId":2325,"corporation":false,"usgs":true,"family":"Scheirer","given":"Daniel S.","email":"dscheirer@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":716966,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Langenheim, Victoria E. 0000-0003-2170-5213 zulanger@usgs.gov","orcid":"https://orcid.org/0000-0003-2170-5213","contributorId":151042,"corporation":false,"usgs":true,"family":"Langenheim","given":"Victoria E.","email":"zulanger@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":716968,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kohler, Monica D.","contributorId":57054,"corporation":false,"usgs":true,"family":"Kohler","given":"Monica","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":716969,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}} ,{"id":70148280,"text":"70148280 - 2012 - Influence of fault trend, bends, and convergence on shallow structure and geomorphology of the Hosgri strike-slip fault, offshore central California","interactions":[],"lastModifiedDate":"2022-01-21T16:34:29.501456","indexId":"70148280","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1820,"text":"Geosphere","active":true,"publicationSubtype":{"id":10}},"title":"Influence of fault trend, bends, and convergence on shallow structure and geomorphology of the Hosgri strike-slip fault, offshore central California","docAbstract":"We mapped an ∼94-km-long portion of the right-lateral Hosgri fault zone in offshore central California using a dense network of high-resolution seismic reflection profiles, marine magnetic data, and multibeam bathymetry. These data document the location, length, and continuity of multiple fault strands, highlight fault-zone heterogeneity, and demonstrate the importance of fault trend, fault bends, and fault convergence in the development of shallow structure and tectonic geomorphology along strike-slip faults.
\nEight sections (A through H) of the Hosgri fault are mapped. The fault trends ∼335° to 341° in the southern ∼40 km of the study area (sections A through C) where shallow deformation is primarily dilational. The absence of tectonic uplift in this area has contributed to localization of the Santa Maria River and delta and, as a result, Holocene sediments cover the fault zone. The Hosgri fault generally trends 329° to 337° in the central ∼24 km of the study area (sections D through F), which coincides with oblique convergence of the Hosgri and the more northwest-trending Los Osos and Shoreline faults. This convergence has resulted in local restraining and releasing fault bends, transpressive uplifts, and extensional basins of varying size and morphology. Notably, development of a paired fault bend is linked to indenting and bulging of the Hosgri fault by a strong crustal block translated to the northwest along the Shoreline fault. Two diverging Hosgri fault strands bounding a central uplifted block characterize the northern ∼30 km of the Hosgri fault (sections G and H) in this area. The eastern Hosgri passes through significant releasing (329° to 335°) and restraining (335° to 328°) bends before passing onland at San Simeon; the releasing bend is the primary control on development of an elongate, asymmetric, 15-km-long × 300- to 2400-m-wide, “Lazy Z” sedimentary basin. The western strand of the Hosgri fault passes through a significant restraining bend (329° to 316°) and continues northward until slip is transferred to faults underlying the Piedras Blancas fold belt.
\nEarthquake hazard assessments should incorporate a minimum rupture length of 110 km based on continuity of the Hosgri fault zone through this area. Lateral slip rates may vary along the fault (both to the north and south) as different structures converge and diverge but are probably in the geodetically estimated range of 2–4 mm/yr.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/Ges00830.1","usgsCitation":"Johnson, S.Y., and Watt, J.T., 2012, Influence of fault trend, bends, and convergence on shallow structure and geomorphology of the Hosgri strike-slip fault, offshore central California: Geosphere, v. 8, no. 6, p. 1632-1656, https://doi.org/10.1130/Ges00830.1.","productDescription":"25 p.","startPage":"1632","endPage":"1656","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-036122","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":474622,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1130/ges00830.1","text":"Publisher Index Page"},{"id":300840,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Hosgri fault","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -121.541748046875,\n 34.7506398050501\n ],\n [\n -121.541748046875,\n 35.66622234103479\n ],\n [\n -120.377197265625,\n 35.66622234103479\n ],\n [\n -120.377197265625,\n 34.7506398050501\n ],\n [\n -121.541748046875,\n 34.7506398050501\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"8","issue":"6","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5566ead6e4b0d9246a9ec2eb","contributors":{"authors":[{"text":"Johnson, Samuel Y. 0000-0001-7972-9977 sjohnson@usgs.gov","orcid":"https://orcid.org/0000-0001-7972-9977","contributorId":2607,"corporation":false,"usgs":true,"family":"Johnson","given":"Samuel","email":"sjohnson@usgs.gov","middleInitial":"Y.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":547655,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Watt, Janet Tilden 0000-0002-4759-3814 jwatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4759-3814","contributorId":1754,"corporation":false,"usgs":true,"family":"Watt","given":"Janet","email":"jwatt@usgs.gov","middleInitial":"Tilden","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":547654,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70190475,"text":"70190475 - 2012 - The Quaternary thrust system of the northern Alaska Range","interactions":[],"lastModifiedDate":"2017-09-01T09:51:29","indexId":"70190475","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1820,"text":"Geosphere","active":true,"publicationSubtype":{"id":10}},"title":"The Quaternary thrust system of the northern Alaska Range","docAbstract":"The framework of Quaternary faults in Alaska remains poorly constrained. Recent studies in the Alaska Range north of the Denali fault add significantly to the recognition of Quaternary deformation in this active orogen. Faults and folds active during the Quaternary occur over a length of ∼500 km along the northern flank of the Alaska Range, extending from Mount McKinley (Denali) eastward to the Tok River valley. These faults exist as a continuous system of active structures, but we divide the system into four regions based on east-west changes in structural style. At the western end, the Kantishna Hills have only two known faults but the highest rate of shallow crustal seismicity. The western northern foothills fold-thrust belt consists of a 50-km-wide zone of subparallel thrust and reverse faults. This broad zone of deformation narrows to the east in a transition zone where the range-bounding fault of the western northern foothills fold-thrust belt terminates and displacement occurs on thrust and/or reverse faults closer to the Denali fault. The eastern northern foothills fold-thrust belt is characterized by ∼40-km-long thrust fault segments separated across left-steps by NNE-trending left-lateral faults. Altogether, these faults accommodate much of the topographic growth of the northern flank of the Alaska Range.
Recognition of this thrust fault system represents a significant concern in addition to the Denali fault for infrastructure adjacent to and transecting the Alaska Range. Although additional work is required to characterize these faults sufficiently for seismic hazard analysis, the regional extent and structural character should require the consideration of the northern Alaska Range thrust system in regional tectonic models.
","language":"English","publisher":"Geosphere","doi":"10.1130/GES00695.1","usgsCitation":"Bemis, S.P., Carver, G.A., and Koehler, R., 2012, The Quaternary thrust system of the northern Alaska Range: Geosphere, v. 8, no. 1, p. 196-205, https://doi.org/10.1130/GES00695.1.","productDescription":"10 p.","startPage":"196","endPage":"205","ipdsId":"IP-028908","costCenters":[{"id":309,"text":"Geology and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":474688,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1130/ges00695.1","text":"Publisher Index Page"},{"id":345409,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","volume":"8","issue":"1","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"59aa71dbe4b0e9bde130cffc","contributors":{"authors":[{"text":"Bemis, Sean P.","contributorId":30709,"corporation":false,"usgs":true,"family":"Bemis","given":"Sean","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":709399,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carver, Gary A.","contributorId":196121,"corporation":false,"usgs":false,"family":"Carver","given":"Gary","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":709400,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Koehler, Richard D.","contributorId":76993,"corporation":false,"usgs":true,"family":"Koehler","given":"Richard D.","affiliations":[],"preferred":false,"id":709401,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70135114,"text":"70135114 - 2012 - Contrasting extreme long-distance migration patterns in bar-tailed godwits Limosa lapponica","interactions":[],"lastModifiedDate":"2018-08-21T13:13:44","indexId":"70135114","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2190,"text":"Journal of Avian Biology","active":true,"publicationSubtype":{"id":10}},"title":"Contrasting extreme long-distance migration patterns in bar-tailed godwits Limosa lapponica","docAbstract":"Migrating birds make the longest non-stop endurance flights in the animal kingdom. Satellite technology is now providing direct evidence on the lengths and durations of these flights and associated staging episodes for individual birds. Using this technology, we compared the migration performance of two subspecies of bar-tailed godwit Limosa lapponica travelling between non-breeding grounds in New Zealand (subspecies baueri) and northwest Australia (subspecies menzbieri) and breeding grounds in Alaska and eastern Russia, respectively. Individuals of both subspecies made long, usually non-stop, flights from non-breeding grounds to coastal staging grounds in the Yellow Sea region of East Asia (average 10 060 ± SD 290 km for baueri and 5860 ± 240 km for menzbieri). After an average stay of 41.2 ± 4.8 d, baueri flew over the North Pacific Ocean before heading northeast to the Alaskan breeding grounds (6770 ± 800 km).Menzbieri staged for 38.4 ± 2.5 d, and flew over land and sea northeast to high arctic Russia (4170 ± 370 km). The post-breeding journey for baueri involved several weeks of staging in southwest Alaska followed by non-stop flights across the Pacific Ocean to New Zealand (11 690 km in a complete track) or stopovers on islands in the southwestern Pacific en route to New Zealand and eastern Australia. By contrast, menzbieri returned to Australia via stopovers in the New Siberian Islands, Russia, and back at the Yellow Sea; birds travelled on average 4510 ± 360 km from Russia to the Yellow Sea, staged there for 40.8 ± 5.6 d, and then flew another 5680–7180 km to Australia (10 820 ± 300 km in total). Overall, the entire migration of the single baueri godwit with a fully completed return track totalled 29 280 km and involved 20 d of major migratory flight over a round-trip journey of 174 d. The entire migrations of menzbieri averaged 21 940 ± 570 km, including 14 d of major migratory flights out of 154 d total. Godwits of both populations exhibit extreme flight performance, and bauerimakes the longest (southbound) and second-longest (northbound) non-stop migratory flights documented for any bird. Both subspecies essentially make single stops when moving between non-breeding and breeding sites in opposite hemispheres. This reinforces the critical importance of the intertidal habitats used by fuelling godwits in Australasia, the Yellow Sea, and Alaska.
","language":"English","publisher":"Wiley","doi":"10.1111/j.1600-048X.2011.05473.x","usgsCitation":"Battley, P.F., Warnock, N., Tibbitts, T.L., Gill, R., Piersma, T., Hassell, C.J., Douglas, D.C., Mulcahy, D.M., Gartrell, B.D., Schuckard, R., Melville, D.S., and Riegen, A.C., 2012, Contrasting extreme long-distance migration patterns in bar-tailed godwits Limosa lapponica: Journal of Avian Biology, v. 43, no. 1, p. 21-32, https://doi.org/10.1111/j.1600-048X.2011.05473.x.","productDescription":"12 p.","startPage":"21","endPage":"32","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-034238","costCenters":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"links":[{"id":486668,"rank":1,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P9A9BYQW","text":"USGS data release","linkHelpText":"Tracking Data for Bar-tailed Godwits (Limosa lapponica)"},{"id":474717,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.1111/j.1600-048x.2011.05473.x","text":"External Repository"},{"id":296575,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Australila, New Zealand, Russia, United States","state":"Alaska","volume":"43","issue":"1","noUsgsAuthors":false,"publicationDate":"2012-06-04","publicationStatus":"PW","scienceBaseUri":"54897cb8e4b027aeab781291","contributors":{"authors":[{"text":"Battley, Phil F.","contributorId":27272,"corporation":false,"usgs":false,"family":"Battley","given":"Phil","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":526918,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Warnock, Nils","contributorId":64534,"corporation":false,"usgs":false,"family":"Warnock","given":"Nils","email":"","affiliations":[],"preferred":false,"id":526919,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tibbitts, T. Lee 0000-0002-0290-7592 ltibbitts@usgs.gov","orcid":"https://orcid.org/0000-0002-0290-7592","contributorId":140455,"corporation":false,"usgs":true,"family":"Tibbitts","given":"T.","email":"ltibbitts@usgs.gov","middleInitial":"Lee","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":false,"id":526849,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gill, Robert E. Jr. 0000-0002-6385-4500 rgill@usgs.gov","orcid":"https://orcid.org/0000-0002-6385-4500","contributorId":171747,"corporation":false,"usgs":true,"family":"Gill","given":"Robert E.","suffix":"Jr.","email":"rgill@usgs.gov","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":526850,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Piersma, Theunis","contributorId":95369,"corporation":false,"usgs":true,"family":"Piersma","given":"Theunis","affiliations":[],"preferred":false,"id":526920,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hassell, Chris J.","contributorId":127818,"corporation":false,"usgs":false,"family":"Hassell","given":"Chris","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":526921,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Douglas, David C. 0000-0003-0186-1104 ddouglas@usgs.gov","orcid":"https://orcid.org/0000-0003-0186-1104","contributorId":2388,"corporation":false,"usgs":true,"family":"Douglas","given":"David","email":"ddouglas@usgs.gov","middleInitial":"C.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":526851,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Mulcahy, Daniel M. dmulcahy@usgs.gov","contributorId":3102,"corporation":false,"usgs":true,"family":"Mulcahy","given":"Daniel","email":"dmulcahy@usgs.gov","middleInitial":"M.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":526852,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Gartrell, Brett D.","contributorId":10299,"corporation":false,"usgs":false,"family":"Gartrell","given":"Brett","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":526922,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Schuckard, Rob","contributorId":127815,"corporation":false,"usgs":false,"family":"Schuckard","given":"Rob","email":"","affiliations":[],"preferred":false,"id":526923,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Melville, David S.","contributorId":127816,"corporation":false,"usgs":false,"family":"Melville","given":"David","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":526924,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Riegen, Adrian C.","contributorId":127817,"corporation":false,"usgs":false,"family":"Riegen","given":"Adrian","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":526925,"contributorType":{"id":1,"text":"Authors"},"rank":12}]}} ,{"id":70174902,"text":"70174902 - 2012 - Spatial analysis of geologic and hydrologic features relating to sinkhole occurrence in Jefferson County, West Virginia","interactions":[],"lastModifiedDate":"2016-07-21T08:51:32","indexId":"70174902","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1184,"text":"Carbonates and Evaporites","active":true,"publicationSubtype":{"id":10}},"title":"Spatial analysis of geologic and hydrologic features relating to sinkhole occurrence in Jefferson County, West Virginia","docAbstract":"In this study the influence of geologic features related to sinkhole susceptibility was analyzed and the results were mapped for the region of Jefferson County, West Virginia. A model of sinkhole density was constructed using Geographically Weighted Regression (GWR) that estimated the relations among discrete geologic or hydrologic features and sinkhole density at each sinkhole location. Nine conditioning factors on sinkhole occurrence were considered as independent variables: distance to faults, fold axes, fracture traces oriented along bedrock strike, fracture traces oriented across bedrock strike, ponds, streams, springs, quarries, and interpolated depth to groundwater. GWR model parameter estimates for each variable were evaluated for significance, and the results were mapped. The results provide visual insight into the influence of these variables on localized sinkhole density, and can be used to provide an objective means of weighting conditioning factors in models of sinkhole susceptibility or hazard risk.
","language":"English","publisher":"Springer","doi":"10.1007/s13146-012-0098-1","usgsCitation":"Doctor, D.H., and Doctor, K.Z., 2012, Spatial analysis of geologic and hydrologic features relating to sinkhole occurrence in Jefferson County, West Virginia: Carbonates and Evaporites, v. 27, no. 2, p. 143-152, https://doi.org/10.1007/s13146-012-0098-1.","productDescription":"10 p.","startPage":"143","endPage":"152","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-026639","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":325495,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"West Virginia","county":"Jefferson County","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-77.7197,39.3253],[-77.7273,39.3199],[-77.734,39.315],[-77.735,39.3133],[-77.7353,39.3129],[-77.7371,39.3101],[-77.7402,39.3052],[-77.7446,39.3003],[-77.7471,39.2963],[-77.7496,39.2909],[-77.7527,39.2864],[-77.7546,39.2824],[-77.7559,39.2765],[-77.7573,39.2719],[-77.7598,39.2674],[-77.7629,39.2639],[-77.7636,39.2632],[-77.7658,39.2612],[-77.7681,39.2589],[-77.7694,39.2576],[-77.7707,39.2554],[-77.771,39.2545],[-77.7713,39.2531],[-77.7709,39.2486],[-77.7703,39.2459],[-77.771,39.2418],[-77.7713,39.2404],[-77.772,39.2387],[-77.7736,39.2364],[-77.7747,39.235],[-77.7755,39.2342],[-77.7776,39.2324],[-77.781,39.2292],[-77.782,39.2283],[-77.7851,39.2248],[-77.7888,39.2194],[-77.7917,39.2127],[-77.7919,39.2122],[-77.7956,39.2045],[-77.7982,39.1974],[-77.7995,39.1923],[-77.8009,39.1875],[-77.8028,39.183],[-77.8036,39.178],[-77.8053,39.1743],[-77.8074,39.1708],[-77.8104,39.1682],[-77.8135,39.1641],[-77.816,39.1605],[-77.8178,39.1574],[-77.8198,39.1516],[-77.8207,39.1492],[-77.8213,39.1468],[-77.8222,39.1429],[-77.8227,39.1409],[-77.8239,39.1371],[-77.8262,39.1353],[-77.8299,39.1343],[-77.8643,39.1567],[-77.9534,39.2147],[-77.995,39.2414],[-78.0315,39.2644],[-78.0349,39.2669],[-78.0332,39.2698],[-78.0284,39.2724],[-78.0266,39.2733],[-78.03,39.2766],[-78.0324,39.2784],[-78.0323,39.2798],[-78.0323,39.2807],[-78.0293,39.2811],[-78.0281,39.2811],[-78.0263,39.2815],[-78.0257,39.2824],[-78.0251,39.2837],[-78.025,39.2855],[-78.025,39.2874],[-78.0256,39.2887],[-78.0249,39.2901],[-78.0219,39.2914],[-78.0213,39.2914],[-78.0201,39.2918],[-78.0177,39.294],[-78.0134,39.299],[-78.0073,39.3057],[-78.0018,39.3106],[-77.9964,39.3127],[-77.9909,39.3181],[-77.9878,39.3208],[-77.9895,39.3249],[-77.9912,39.3267],[-77.9912,39.3276],[-77.9906,39.3285],[-77.9888,39.3285],[-77.9876,39.3289],[-77.9869,39.3307],[-77.9863,39.3321],[-77.9857,39.3339],[-77.9838,39.3352],[-77.9832,39.3357],[-77.9753,39.3437],[-77.9811,39.3492],[-77.981,39.3501],[-77.9792,39.3515],[-77.9751,39.3509],[-77.9704,39.3486],[-77.9674,39.3472],[-77.965,39.3503],[-77.9649,39.3539],[-77.9666,39.3567],[-77.9671,39.3585],[-77.9629,39.3607],[-77.9611,39.362],[-77.9616,39.3639],[-77.9651,39.3671],[-77.9657,39.368],[-77.9639,39.3689],[-77.9579,39.3683],[-77.9555,39.3701],[-77.9506,39.3741],[-77.9476,39.3745],[-77.9441,39.374],[-77.9435,39.374],[-77.9429,39.374],[-77.9423,39.3744],[-77.9422,39.3753],[-77.9428,39.3758],[-77.9475,39.3781],[-77.9474,39.3804],[-77.9445,39.3813],[-77.9325,39.3824],[-77.9307,39.3833],[-77.8613,39.4365],[-77.8563,39.4428],[-77.8496,39.4472],[-77.8465,39.4517],[-77.8464,39.4544],[-77.8445,39.4598],[-77.8402,39.4625],[-77.8407,39.4666],[-77.8394,39.4693],[-77.8381,39.4747],[-77.8326,39.48],[-77.8324,39.4841],[-77.8243,39.4958],[-77.819,39.4956],[-77.8182,39.4954],[-77.8142,39.4944],[-77.8109,39.4932],[-77.8066,39.4918],[-77.8025,39.4903],[-77.8019,39.4902],[-77.7995,39.4901],[-77.796,39.491],[-77.793,39.4928],[-77.7919,39.4934],[-77.7901,39.4953],[-77.7886,39.4961],[-77.7841,39.4992],[-77.7829,39.4996],[-77.7795,39.5006],[-77.7757,39.501],[-77.7711,39.5006],[-77.7687,39.5002],[-77.7676,39.4997],[-77.7658,39.4983],[-77.7651,39.4966],[-77.7656,39.4951],[-77.7667,39.4937],[-77.7677,39.4927],[-77.7703,39.4915],[-77.7738,39.4899],[-77.7763,39.4886],[-77.7793,39.4878],[-77.784,39.486],[-77.7858,39.4856],[-77.79,39.4846],[-77.7943,39.483],[-77.7968,39.4812],[-77.7977,39.4802],[-77.7984,39.4788],[-77.7978,39.4772],[-77.7974,39.4767],[-77.7953,39.4747],[-77.7934,39.4731],[-77.7864,39.4697],[-77.7834,39.4683],[-77.781,39.467],[-77.7792,39.4656],[-77.7788,39.465],[-77.778,39.4634],[-77.778,39.4625],[-77.7803,39.4616],[-77.7821,39.4615],[-77.7848,39.4615],[-77.7875,39.4616],[-77.7899,39.4621],[-77.7932,39.4625],[-77.7947,39.4627],[-77.7954,39.4626],[-77.796,39.4625],[-77.797,39.4615],[-77.7978,39.4607],[-77.7976,39.4597],[-77.7965,39.4574],[-77.7946,39.4561],[-77.7922,39.4535],[-77.7869,39.4511],[-77.7858,39.4493],[-77.7845,39.4484],[-77.7845,39.4475],[-77.7841,39.4464],[-77.7841,39.4457],[-77.7847,39.4449],[-77.7874,39.4434],[-77.7884,39.443],[-77.7916,39.4429],[-77.794,39.4429],[-77.7949,39.443],[-77.7967,39.4429],[-77.7987,39.4424],[-77.8004,39.442],[-77.8011,39.4411],[-77.8015,39.4405],[-77.801,39.4391],[-77.7999,39.4375],[-77.7981,39.4357],[-77.7952,39.4345],[-77.7923,39.4331],[-77.7863,39.4321],[-77.7749,39.4303],[-77.7713,39.4298],[-77.7677,39.4298],[-77.7649,39.4299],[-77.7614,39.4289],[-77.7584,39.4285],[-77.756,39.4277],[-77.754,39.4258],[-77.753,39.425],[-77.7516,39.424],[-77.7513,39.4234],[-77.7503,39.4219],[-77.7492,39.4191],[-77.7486,39.417],[-77.7438,39.4109],[-77.7395,39.404],[-77.7372,39.3977],[-77.736,39.3937],[-77.7358,39.3925],[-77.7352,39.3909],[-77.7354,39.3895],[-77.7356,39.3887],[-77.7359,39.3881],[-77.7371,39.3873],[-77.7384,39.3868],[-77.7408,39.3868],[-77.7431,39.3864],[-77.7461,39.3855],[-77.7475,39.3852],[-77.7491,39.3847],[-77.7503,39.3838],[-77.7503,39.3825],[-77.7504,39.3806],[-77.7499,39.379],[-77.7497,39.3775],[-77.7485,39.3755],[-77.7473,39.3728],[-77.7465,39.3709],[-77.746,39.3701],[-77.7454,39.3679],[-77.7449,39.366],[-77.7444,39.3642],[-77.7444,39.3628],[-77.7445,39.3606],[-77.7449,39.3583],[-77.7458,39.3556],[-77.7483,39.3516],[-77.752,39.3489],[-77.7538,39.3476],[-77.7561,39.3465],[-77.7567,39.3456],[-77.7579,39.3442],[-77.7578,39.3424],[-77.7577,39.3405],[-77.757,39.3395],[-77.7559,39.3381],[-77.7547,39.3372],[-77.7539,39.3362],[-77.7535,39.3359],[-77.7531,39.3357],[-77.7512,39.3349],[-77.7483,39.3334],[-77.7412,39.3315],[-77.7364,39.3301],[-77.731,39.3286],[-77.7294,39.3281],[-77.7197,39.3253]]]},\"properties\":{\"name\":\"Jefferson\",\"state\":\"WV\"}}]}","volume":"27","issue":"2","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2012-06-23","publicationStatus":"PW","scienceBaseUri":"5791f233e4b0a1ebd3ad4c9b","contributors":{"authors":[{"text":"Doctor, Daniel H. 0000-0002-8338-9722 dhdoctor@usgs.gov","orcid":"https://orcid.org/0000-0002-8338-9722","contributorId":2037,"corporation":false,"usgs":true,"family":"Doctor","given":"Daniel","email":"dhdoctor@usgs.gov","middleInitial":"H.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":643079,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Doctor, Katarina Z.","contributorId":173047,"corporation":false,"usgs":false,"family":"Doctor","given":"Katarina","email":"","middleInitial":"Z.","affiliations":[],"preferred":false,"id":643080,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}} ,{"id":70174147,"text":"70174147 - 2012 - Hermit Thrush (Catharus guttatus)","interactions":[],"lastModifiedDate":"2017-04-19T14:28:59","indexId":"70174147","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5033,"text":"The Birds of North America","active":true,"publicationSubtype":{"id":10}},"title":"Hermit Thrush (Catharus guttatus)","docAbstract":"With spotted breast and reddish tail, the Hermit Thrush lives up to its name. Although celebrated for its ethereal song, it is mostly a quiet and unobtrusive bird that spends much of its time in the lower branches of the undergrowth or on the forest floor, often seen flicking its wings while perched and quickly raising and slowly lowering its tail. A highly variable species in color and size, the Hermit Thrush's morphological characteristics and plumage have been well studied, with 12-13 subspecies now recognized (see Systematics).
This thrush is one of the most widely distributed forest-nesting migratory birds in North America and the only forest thrush whose population has increased or remained stable over the past 20 years. Its extensive breeding range includes the northern hardwood forest, as well as most of the boreal and mountainous coniferous forest areas north of Mexico, with relatively recent expansions into New England and the southern Appalachians. In migration, the species moves to lower elevations and southward, spreading out to winter over much of the southern United States, through Mexico to Guatemala and east to Bermuda. It is the only species of Catharus that winters in North America, switching from a breeding diet of mainly arthropods to a wintering diet heavily supplemented with fruits.
Much has been learned about this widely distributed species since the original Birds of North America account of 1996. New information pertaining to its song, migratory behavior, winter territoriality, survival, and diet has been added, as well as many new insights into the potential effects of forest management and other human disturbances. Still lacking are detailed nesting studies, studies of juvenile dispersal, of daily activities and time budgets, and of migratory routes.
","language":"English","publisher":"Cornell University","doi":"10.2173/bna.261","usgsCitation":"Wood, P., and Donovan, T., 2012, Hermit Thrush (Catharus guttatus): The Birds of North America, https://doi.org/10.2173/bna.261.","ipdsId":"IP-031968","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":339984,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58f877c3e4b0b7ea54521c42","contributors":{"authors":[{"text":"Wood, Petra pbwood@usgs.gov","contributorId":169812,"corporation":false,"usgs":true,"family":"Wood","given":"Petra","email":"pbwood@usgs.gov","affiliations":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true},{"id":34541,"text":"West Virginia Cooperative Fish and Wildlife Research Unit","active":true,"usgs":false}],"preferred":false,"id":640994,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Donovan, Therese M. tdonovan@usgs.gov","contributorId":2653,"corporation":false,"usgs":true,"family":"Donovan","given":"Therese M.","email":"tdonovan@usgs.gov","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":692207,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70157253,"text":"70157253 - 2012 - The Neoacadian orogenic core of the souther Appalachians: A geo-traverse through the migmatitic inner Piedmont from the Brushy Mountains to Lincolnton, North Carolina","interactions":[],"lastModifiedDate":"2022-11-04T17:05:05.51123","indexId":"70157253","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"The Neoacadian orogenic core of the souther Appalachians: A geo-traverse through the migmatitic inner Piedmont from the Brushy Mountains to Lincolnton, North Carolina","docAbstract":"The Inner Piedmont extends from North Carolina to Alabama and comprises the Neoacadian (360–345 Ma) orogenic core of the southern Appalachian orogen. Bordered to west by the Blue Ridge and the exotic Carolina superterrane to the east, the Inner Piedmont is cored by an extensive region of migmatitic, sillimanite-grade rocks. It is a composite of the peri-Laurentian Tugaloo terrane and mixed Laurentian and peri-Gondwanan affinity Cat Square terrane, which are exposed in several gentle-dipping thrust sheets (nappes). The Cat Square terrane consists of Late Silurian to Early Devonian pelitic schist and metagraywacke intruded by several Devonian to Mississippian peraluminous granitoids, and juxtaposed against the Tugaloo terrane by the Brindle Creek fault. This field trip through the North Carolina Inner Piedmont will examine the lithostratigraphies of the Tugaloo and Cat Square terranes, deformation associated with Brindle Creek fault, Devonian-Mississippian granitoids and charnockite of the Cat Square terrane, pervasive amphibolite-grade Devonian-Mississippian (Neoacadian) deformation and metamorphism throughout the Inner Piedmont, and existence of large crystalline thrust sheets in the Inner Piedmont. Consistent with field observations, geochronology and other data, we have hypothesized that the Carolina superterrane collided obliquely with Laurentia near the Pennsylvania embayment during the Devonian, overrode the Cat Square terrane and Laurentian margin, and squeezed the Inner Piedmont out to the west and southwest as an orogenic channel buttressed against the footwall of the Brevard fault zone.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"From the Blue Ridge to the coastal plain: Field excursions in the southeastern United States","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Geological Society of America","publisherLocation":"Boulder, Colo.","usgsCitation":"Merschat, A.J., Hatcher, R.D., Byars, H.E., and Williams, G., 2012, The Neoacadian orogenic core of the souther Appalachians: A geo-traverse through the migmatitic inner Piedmont from the Brushy Mountains to Lincolnton, North Carolina, chap. of From the Blue Ridge to the coastal plain: Field excursions in the southeastern United States, p. 171-217.","productDescription":"47 p.","startPage":"171","endPage":"217","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-040211","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":308141,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"North Carolina","city":"Lincolnton","otherGeospatial":"Brushy Mountains","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -82.25734901780415,\n 35.35686457413088\n ],\n [\n -82.19164138246755,\n 35.29048933514024\n ],\n [\n -82.27612262790014,\n 35.25472625782463\n ],\n [\n -82.27612262790014,\n 35.1933814028566\n ],\n [\n -81.01516181644247,\n 35.14990074828084\n ],\n [\n -80.77423382020822,\n 35.37217419702567\n ],\n [\n -80.25483060754853,\n 36.10361164929357\n ],\n [\n -80.28924889272422,\n 36.544769491974066\n ],\n [\n -80.67723683471142,\n 36.56487696282086\n ],\n [\n -80.79613636532044,\n 36.55985058562055\n ],\n [\n -80.880617610753,\n 36.54225569025742\n ],\n [\n -80.96196992117005,\n 36.441636618517364\n ],\n [\n -80.94632524608961,\n 36.391278082825735\n ],\n [\n -81.36873147325323,\n 36.16678701229759\n ],\n [\n -81.40002082341343,\n 36.10613964024502\n ],\n [\n -81.85997427076896,\n 35.8656175962779\n ],\n [\n -81.86936107581695,\n 35.82503652230436\n ],\n [\n -81.85997427076896,\n 35.77174236016829\n ],\n [\n -82.25734901780415,\n 35.35686457413088\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"55f94144e4b05d6c4e5013b6","contributors":{"editors":[{"text":"Eppes, Martha Cary","contributorId":147722,"corporation":false,"usgs":false,"family":"Eppes","given":"Martha","email":"","middleInitial":"Cary","affiliations":[],"preferred":false,"id":572440,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Bartholomew, Mervin J.","contributorId":111518,"corporation":false,"usgs":true,"family":"Bartholomew","given":"Mervin","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":572441,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Merschat, Arthur J. 0000-0002-9314-4067 amerschat@usgs.gov","orcid":"https://orcid.org/0000-0002-9314-4067","contributorId":4556,"corporation":false,"usgs":true,"family":"Merschat","given":"Arthur","email":"amerschat@usgs.gov","middleInitial":"J.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":572436,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hatcher, Robert D. Jr.","contributorId":121402,"corporation":false,"usgs":true,"family":"Hatcher","given":"Robert","suffix":"Jr.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":572437,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Byars, Heather E.","contributorId":147723,"corporation":false,"usgs":false,"family":"Byars","given":"Heather","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":572438,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Williams, G.","contributorId":147724,"corporation":false,"usgs":false,"family":"Williams","given":"G.","affiliations":[],"preferred":false,"id":572439,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ]}