{"pageNumber":"327","pageRowStart":"8150","pageSize":"25","recordCount":36997,"records":[{"id":21937,"text":"ofr9916 - 1999 - Merged aeroradiometric data for Alaska: A web site for distribution of gridded data and plot files","interactions":[],"lastModifiedDate":"2021-12-20T20:45:38.723617","indexId":"ofr9916","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-16","title":"Merged aeroradiometric data for Alaska: A web site for distribution of gridded data and plot files","docAbstract":"

The National Uranium Resource Evaluation (NURE) program was conducted by the U.S. Government between 1974 and 1983. The NURE program was administered by the Grand Junction, CO, office of the Department of Energy. The program included airborne gamma-ray spectrometry and magnetic data collection as well as extensive geochemical sample collection and processing. Aeroradiometric and aeromagnetic surveys of 98 1° by 3° quadrangles were flown in Alaska between 1975 and 1980. The data were flown in 15 surveys by Texas Instruments (T.I.), Lockwood, Kessler, and Bartlett (LKB), and AeroServices (Aero) under contract to the U.S. Government. A series of contractor reports document the surveys on a quadrangle by quadrangle basis. We list references to these reports on the detailed survey index pages accessible through the Survey Irfo page.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr9916","issn":"0094-9140","usgsCitation":"Saltus, R.W., Riggle, F.E., Clark, B.T., and Hill, P.L., 1999, Merged aeroradiometric data for Alaska: A web site for distribution of gridded data and plot files: U.S. Geological Survey Open-File Report 99-16, 13 p., https://doi.org/10.3133/ofr9916.","productDescription":"13 p.","costCenters":[],"links":[{"id":1282,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0016/","linkFileType":{"id":5,"text":"html"}},{"id":51412,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0016/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":153666,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0016/report-thumb.jpg"},{"id":393118,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_16457.htm"}],"country":"United States","state":"Alaska","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-162.255031,54.978353],[-162.30058,54.832594],[-162.41737,54.877491],[-162.255031,54.978353]]],[[[-160.0179,55.15613],[-159.889174,55.287138],[-159.905365,55.164689],[-159.816419,55.178051],[-160.183466,54.91568],[-160.191392,55.108574],[-160.0179,55.15613]]],[[[-159.455311,55.061452],[-159.328791,54.980598],[-159.426615,54.942266],[-159.455311,55.061452]]],[[[-161.718614,55.154166],[-161.608634,55.116906],[-161.862504,55.127598],[-161.718614,55.154166]]],[[[-160.506927,55.32773],[-160.486174,55.193617],[-160.806009,55.12567],[-160.797147,55.381521],[-160.344369,55.362962],[-160.330722,55.261045],[-160.506927,55.32773]]],[[[-160.21178,55.455862],[-160.141834,55.387154],[-160.27997,55.395905],[-160.21178,55.455862]]],[[[-165.790523,54.171758],[-165.714198,54.120815],[-166.098255,54.103538],[-166.002465,54.213629],[-165.790523,54.171758]]],[[[-165.523466,54.299895],[-165.405377,54.212837],[-165.629725,54.132558],[-165.681458,54.236914],[-165.523466,54.299895]]],[[[-162.801865,54.48944],[-162.588883,54.450064],[-162.611891,54.368077],[-162.86005,54.425452],[-162.801865,54.48944]]],[[[-170.286318,57.128169],[-170.311707,57.219122],[-170.161647,57.229656],[-170.286318,57.128169]]],[[[178.785825,51.633434],[179.462765,51.376176],[178.634021,51.623981],[178.785825,51.633434]]],[[[-176.762478,51.867878],[-176.789558,51.957211],[-176.603598,51.997056],[-176.543309,51.838624],[-176.268243,51.785498],[-176.930952,51.59247],[-176.918065,51.788003],[-176.762478,51.867878]]],[[[-177.800647,51.778294],[-177.909185,51.596671],[-178.172666,51.839985],[-177.615311,51.85508],[-177.800647,51.778294]]],[[[-177.360408,51.727533],[-177.631523,51.696844],[-177.099266,51.936119],[-177.13096,51.762772],[-177.360408,51.727533]]],[[[177.601645,52.016377],[177.235523,51.87326],[177.661607,52.112746],[177.601645,52.016377]]],[[[179.758993,51.946595],[179.649484,51.87367],[179.482464,51.982834],[179.758993,51.946595]]],[[[-174.301818,52.278949],[-174.408277,52.289872],[-174.185347,52.417788],[-173.989415,52.325275],[-174.177679,52.233638],[-174.090169,52.139119],[-175.27485,52.018619],[-174.301818,52.278949]]],[[[-173.602446,52.153773],[-173.019588,52.097881],[-173.511915,52.031278],[-174.04675,52.122403],[-173.602446,52.153773]]],[[[173.587554,52.476785],[173.769503,52.512072],[173.725696,52.356579],[173.3955,52.402647],[173.587554,52.476785]]],[[[172.763366,52.823656],[172.469022,52.911337],[173.107249,52.993228],[173.421682,52.845477],[172.763366,52.823656]]],[[[-168.211705,53.256184],[-169.041338,52.839348],[-168.617143,53.260985],[-168.366519,53.252024],[-168.315847,53.481729],[-167.816998,53.517947],[-167.872879,53.36736],[-168.211705,53.256184]]],[[[-166.728918,54.003111],[-166.57509,53.879236],[-166.373689,54.01003],[-166.210964,53.933557],[-166.547438,53.749404],[-166.119922,53.855048],[-166.111317,53.776856],[-166.656234,53.487119],[-167.798984,53.284757],[-167.102305,53.515077],[-167.16164,53.605909],[-167.041245,53.707929],[-166.779991,53.719126],[-167.141966,53.826932],[-166.728918,54.003111]]],[[[-169.553937,56.608682],[-169.473138,56.601741],[-169.75575,56.591922],[-169.553937,56.608682]]],[[[-165.721389,60.16962],[-165.539367,59.965175],[-166.157071,59.748886],[-167.111785,59.989349],[-167.421489,60.205431],[-166.847438,60.213592],[-166.124379,60.414253],[-165.697326,60.297238],[-165.721389,60.16962]]],[[[-173.052751,60.515252],[-172.951862,60.605671],[-172.269754,60.333887],[-172.595895,60.318233],[-173.052751,60.515252]]],[[[-160.918586,58.746935],[-160.700627,58.817368],[-160.880515,58.581325],[-161.07563,58.549916],[-160.918586,58.746935]]],[[[-151.930565,60.51632],[-151.839194,60.485862],[-152.079995,60.341191],[-151.930565,60.51632]]],[[[-131.246018,54.989555],[-131.253671,54.866779],[-131.469097,54.913153],[-131.246018,54.989555]]],[[[-131.759896,55.381845],[-131.748334,55.128588],[-131.870568,55.364553],[-131.759896,55.381845]]],[[[-158.800682,55.891025],[-158.7036,55.841532],[-158.889198,55.810123],[-158.800682,55.891025]]],[[[-131.56956,55.284114],[-131.350575,55.067042],[-131.579882,55.017576],[-131.56956,55.284114]]],[[[-133.344847,55.569327],[-133.289854,55.50187],[-133.609073,55.241486],[-133.690174,55.304409],[-133.733029,55.558757],[-133.644202,55.470815],[-133.344847,55.569327]]],[[[-133.104304,55.426907],[-133.416549,55.739647],[-133.701152,55.78516],[-133.347915,55.803943],[-133.384089,55.87677],[-133.799931,55.925349],[-133.548802,56.14284],[-133.593728,56.352192],[-133.094977,56.250583],[-132.146062,55.470346],[-132.514798,55.576767],[-132.608786,55.486348],[-132.408317,55.512522],[-132.166857,55.363039],[-132.214912,55.2457],[-131.979818,55.211787],[-132.180334,55.015557],[-131.984592,55.027978],[-131.999591,54.731975],[-132.142277,54.691674],[-132.55839,54.932612],[-132.598675,55.150482],[-132.748854,54.996007],[-133.119294,55.251405],[-132.909706,54.923594],[-132.650001,54.904387],[-132.676226,54.680865],[-132.866355,54.700386],[-133.21042,55.040269],[-133.223791,55.229317],[-133.473593,55.255547],[-133.021557,55.366336],[-133.104304,55.426907]]],[[[-147.483828,60.618636],[-147.487635,60.728092],[-147.3087,60.665274],[-147.483828,60.618636]]],[[[-147.217704,60.293504],[-146.962633,60.311911],[-147.533041,59.852401],[-147.912883,59.79224],[-147.217704,60.293504]]],[[[-147.562801,60.579821],[-147.720124,60.202002],[-147.908985,60.224359],[-147.782548,60.4833],[-147.562801,60.579821]]],[[[-132.977163,56.439673],[-132.634335,56.422174],[-132.662081,56.274795],[-133.010587,56.309492],[-132.977163,56.439673]]],[[[-135.631777,58.380673],[-135.538502,58.337842],[-135.727908,58.365444],[-135.631777,58.380673]]],[[[-134.713987,58.220748],[-134.215981,58.162128],[-133.832895,57.635733],[-134.202353,57.90633],[-133.870327,57.381298],[-134.565687,57.023737],[-134.646773,57.226327],[-134.578511,57.400291],[-134.486023,57.372492],[-134.969189,58.367542],[-134.713987,58.220748]]],[[[-155.656727,55.860872],[-155.564404,55.809476],[-155.718593,55.772356],[-155.656727,55.860872]]],[[[-152.24289,58.241192],[-152.265111,58.135732],[-152.562829,58.177979],[-152.706831,58.050577],[-153.075746,58.099571],[-152.876788,58.002307],[-152.982406,57.984697],[-153.419783,58.059638],[-153.156402,58.090087],[-153.209672,58.15035],[-152.610955,58.475775],[-152.56771,58.621304],[-152.354709,58.63828],[-152.493991,58.354684],[-152.328063,58.434372],[-151.964103,58.269049],[-152.081083,58.154275],[-152.24289,58.241192]]],[[[-153.940505,56.558317],[-154.343096,56.510171],[-154.223759,56.612955],[-153.940505,56.558317]]],[[[-152.417424,57.815464],[-152.324284,57.824444],[-152.468172,57.600996],[-152.179531,57.624809],[-152.323683,57.467861],[-152.9663,57.51217],[-152.601148,57.382165],[-153.079288,57.32196],[-152.97091,57.282624],[-153.163333,57.216713],[-152.874839,57.16095],[-153.301142,56.991192],[-153.328206,57.141993],[-153.675981,57.06983],[-153.543429,56.995245],[-153.97178,56.744861],[-154.129017,56.742168],[-153.804787,57.113158],[-154.298965,56.846479],[-154.574343,57.239919],[-154.777368,57.280008],[-154.629678,57.510197],[-154.22566,57.661366],[-153.994572,57.656905],[-153.802932,57.350896],[-153.877756,57.629529],[-153.667261,57.639008],[-153.93522,57.813047],[-153.721176,57.890615],[-153.557647,57.734741],[-153.324872,57.831048],[-153.528697,57.921717],[-153.469421,57.977282],[-153.127278,57.856748],[-153.299009,57.985626],[-152.723425,57.99172],[-152.904312,57.750825],[-152.415177,57.973081],[-152.324103,57.916604],[-152.417424,57.815464]]],[[[-134.283312,55.925175],[-134.173104,55.918519],[-134.327238,55.83644],[-134.283312,55.925175]]],[[[-134.121514,56.069847],[-134.224073,56.065223],[-134.292353,56.352644],[-134.067466,56.390987],[-134.089604,56.472582],[-134.401407,56.725419],[-134.339168,56.90183],[-134.19095,56.861675],[-134.273113,56.933823],[-133.76778,56.780469],[-133.713331,56.598298],[-133.895746,56.511217],[-133.971228,56.083293],[-134.054411,56.224854],[-134.121514,56.069847]]],[[[-132.546463,56.606563],[-132.984751,56.51264],[-133.325392,56.791864],[-133.089388,56.535474],[-133.603669,56.435413],[-133.689996,56.839421],[-134.049218,57.029203],[-133.104611,57.005701],[-132.546463,56.606563]]],[[[-134.666587,56.169947],[-135.054049,56.527658],[-135.005249,56.602252],[-135.398678,56.779201],[-135.372021,57.228003],[-135.674687,57.336747],[-135.526036,57.509697],[-134.849477,57.40967],[-134.615955,56.637289],[-134.666587,56.169947]]],[[[-135.587961,57.89732],[-135.29156,57.737468],[-134.929726,57.759203],[-134.824891,57.500067],[-135.025148,57.454315],[-135.571606,57.674397],[-135.669416,57.389296],[-135.892131,57.408048],[-136.563223,58.035052],[-136.354836,58.192279],[-136.404805,58.267232],[-136.239246,58.171913],[-135.823562,58.282975],[-135.522646,58.185909],[-135.581753,57.997568],[-135.420107,58.144202],[-134.912854,57.979287],[-135.140674,57.926114],[-134.991819,57.835436],[-135.19896,57.775092],[-135.587961,57.89732]]],[[[-135.703464,57.32204],[-135.575722,57.104231],[-135.854131,56.995043],[-135.755997,57.121225],[-135.849974,57.265895],[-135.703464,57.32204]]],[[[-162.587754,63.275727],[-162.252411,63.541753],[-161.310181,63.471312],[-160.809089,63.731332],[-160.976038,64.235761],[-161.492926,64.407851],[-161.388621,64.532783],[-161.024185,64.499719],[-160.783398,64.71716],[-161.149655,64.911985],[-161.42986,64.759027],[-162.188146,64.672395],[-162.790167,64.325182],[-162.940776,64.542417],[-163.217757,64.632062],[-163.311983,64.58828],[-163.033231,64.519314],[-163.175336,64.399334],[-163.597834,64.563356],[-165.001961,64.433917],[-166.189546,64.575798],[-166.451788,64.691761],[-166.410198,64.827968],[-166.530518,64.937114],[-166.911922,65.125965],[-166.521506,65.149242],[-166.439404,65.319058],[-167.398458,65.400259],[-168.127044,65.626584],[-165.80503,66.33331],[-164.400727,66.58111],[-163.754171,66.551284],[-163.904813,66.230303],[-164.046937,66.209404],[-163.623921,66.058281],[-161.838018,66.022582],[-161.548429,66.239912],[-161.067871,66.235164],[-161.360743,66.375943],[-161.912946,66.344436],[-161.87488,66.511446],[-162.501415,66.742503],[-162.601052,66.898455],[-162.271769,66.904144],[-162.013623,66.779406],[-162.033156,66.631585],[-161.624334,66.450143],[-161.326349,66.478371],[-161.86618,66.704978],[-161.719587,66.916898],[-161.485121,66.945647],[-161.62216,67.008146],[-163.69887,67.114443],[-163.878781,67.416125],[-164.209816,67.639079],[-166.784578,68.340431],[-166.305962,68.46154],[-166.222496,68.860441],[-163.973678,68.985044],[-163.137614,69.352178],[-163.016456,69.538142],[-163.118176,69.589156],[-162.916958,69.692512],[-163.010545,69.728109],[-161.922949,70.291599],[-160.839536,70.344534],[-159.209082,70.870067],[-159.132483,70.828359],[-159.290577,70.811262],[-159.13779,70.758609],[-157.768452,70.875842],[-156.56865,71.352561],[-155.513987,71.096794],[-155.95205,70.964831],[-155.969194,70.827982],[-155.543031,70.847175],[-155.03174,71.146473],[-154.61605,71.026182],[-154.577386,70.835335],[-154.181863,70.768325],[-153.23848,70.922467],[-152.259966,70.84282],[-152.187197,70.801546],[-152.471531,70.68884],[-152.433781,70.616926],[-151.695162,70.549675],[-151.91921,70.472686],[-151.844375,70.434959],[-149.461755,70.518271],[-147.681722,70.199954],[-145.842689,70.164102],[-144.902304,69.96451],[-143.574986,70.154598],[-142.746807,70.042531],[-141.377718,69.634631],[-141.002672,69.645609],[-141.00184,60.306105],[-139.989142,60.18524],[-139.738924,60.31842],[-139.086669,60.357654],[-139.200346,60.090701],[-137.604277,59.243057],[-137.526424,58.906834],[-136.581521,59.164909],[-136.474326,59.464194],[-136.234229,59.524731],[-136.256889,59.623646],[-135.477436,59.799626],[-135.254125,59.701339],[-135.027456,59.563692],[-134.961972,59.280376],[-134.702383,59.247836],[-134.250526,58.858046],[-133.379908,58.427909],[-133.461475,58.385526],[-132.29792,57.269469],[-132.371312,57.095229],[-132.051044,57.051155],[-132.080262,56.850926],[-131.9301,56.835211],[-131.849898,56.661227],[-130.102761,56.116696],[-130.023189,55.930665],[-130.150595,55.767031],[-129.982348,55.302079],[-130.409764,54.881192],[-130.854966,54.766341],[-131.093806,55.191335],[-130.925069,55.300713],[-130.901872,55.69738],[-131.093956,55.895675],[-131.243491,55.973689],[-130.94683,55.650716],[-130.959772,55.315892],[-131.000594,55.398012],[-131.160492,55.197481],[-131.263089,55.208318],[-131.191595,55.360527],[-131.402931,55.238065],[-131.828446,55.445214],[-131.664629,55.581525],[-131.713742,55.853263],[-131.828176,55.877284],[-131.936689,55.535151],[-132.183207,55.588128],[-132.283594,55.761774],[-132.067412,55.875078],[-131.943402,56.192557],[-132.320487,55.887648],[-132.708697,56.112124],[-132.543076,56.332276],[-132.382793,56.299203],[-132.394268,56.485579],[-132.204367,56.372086],[-132.371589,56.672473],[-132.528446,56.702056],[-132.432385,56.782385],[-132.770404,56.837486],[-132.91197,56.966651],[-132.813684,57.030218],[-133.466932,57.159356],[-133.489738,57.305192],[-133.287052,57.30292],[-133.475998,57.380394],[-133.478086,57.56173],[-133.66439,57.611707],[-133.65855,57.707924],[-133.234598,57.608749],[-134.049603,58.062027],[-134.087674,58.181952],[-134.631203,58.247446],[-135.368331,59.263275],[-135.295084,59.08761],[-135.38931,58.990528],[-135.142322,58.61637],[-135.056227,58.189884],[-135.433061,58.399899],[-135.90731,58.380839],[-136.120307,58.968418],[-136.150772,58.757266],[-136.247343,58.752935],[-136.877826,58.962392],[-136.928643,58.900131],[-136.463258,58.781607],[-136.422309,58.647412],[-136.246368,58.663185],[-136.041818,58.380161],[-136.70125,58.219416],[-137.608804,58.601234],[-138.131,59.002613],[-139.855565,59.53666],[-139.51818,59.687814],[-139.625896,59.904084],[-139.486032,60.012407],[-140.272266,59.700609],[-141.423134,59.877329],[-141.299609,59.937397],[-141.384318,60.071598],[-141.73624,59.961905],[-142.698419,60.093333],[-144.035037,60.020202],[-144.59088,59.795581],[-144.052539,60.041759],[-144.892815,60.292821],[-144.964135,60.444466],[-145.113885,60.300978],[-145.9469,60.455395],[-145.712891,60.583249],[-146.689523,60.271279],[-146.637783,60.467178],[-145.795141,60.601121],[-145.841742,60.685893],[-146.253471,60.622315],[-146.101458,60.719277],[-146.191553,60.73199],[-146.668151,60.692761],[-146.183555,60.846969],[-146.262969,60.867787],[-146.801009,60.80516],[-146.653827,61.047752],[-146.262451,61.090246],[-146.613659,61.118799],[-147.378483,60.877845],[-147.525453,60.896057],[-147.514173,61.096127],[-147.66899,60.841563],[-148.134384,60.791268],[-147.715826,61.249669],[-148.426951,60.827113],[-148.384491,60.687754],[-148.148059,60.758536],[-148.091712,60.676249],[-148.30652,60.550702],[-148.115163,60.596029],[-147.942106,60.444029],[-148.025994,60.279029],[-148.171278,60.335266],[-148.362497,60.221849],[-147.913221,60.132576],[-148.016432,59.999344],[-147.848469,60.078962],[-147.917935,59.985997],[-148.225235,59.950195],[-148.148011,59.994952],[-148.274241,60.013318],[-148.293213,60.151289],[-148.401601,59.9976],[-149.133115,60.044918],[-149.287588,59.906506],[-149.341584,60.076762],[-149.584254,59.866905],[-149.526358,59.703258],[-149.666147,59.850527],[-149.746364,59.860881],[-149.74622,59.637585],[-150.028296,59.788652],[-149.928962,59.723245],[-150.392481,59.387265],[-150.316945,59.585285],[-150.478742,59.458498],[-150.547729,59.590331],[-150.942212,59.233136],[-151.915684,59.227522],[-151.991618,59.313617],[-151.826047,59.439049],[-151.272459,59.555823],[-150.927312,59.793431],[-151.503822,59.633662],[-151.829137,59.720151],[-151.71801,60.009473],[-151.30609,60.387257],[-151.40927,60.720558],[-150.353702,61.031822],[-150.217179,60.930001],[-149.111617,60.878949],[-150.039304,61.144291],[-149.429513,61.447165],[-149.542776,61.489995],[-149.919682,61.26347],[-150.646221,61.296689],[-151.783271,60.868713],[-151.702833,60.727778],[-151.860179,60.753282],[-152.309221,60.506384],[-152.234199,60.393888],[-152.715881,60.241274],[-152.596784,60.101071],[-152.745083,59.904232],[-153.225937,59.858343],[-153.021945,59.834133],[-153.214156,59.634271],[-153.366613,59.633729],[-153.439977,59.784652],[-153.577828,59.555991],[-154.087803,59.367967],[-154.260121,59.14302],[-153.254798,58.861756],[-153.445002,58.70931],[-153.851432,58.611872],[-154.291163,58.13568],[-154.990431,58.013424],[-155.37861,57.710766],[-155.617188,57.769715],[-155.731412,57.555546],[-156.044031,57.564455],[-156.036722,57.470941],[-156.481632,57.338705],[-156.551239,57.2908],[-156.336427,57.336081],[-156.355401,57.159679],[-156.5472,56.986488],[-157.201724,56.767511],[-157.45759,56.848204],[-157.536486,56.615317],[-158.042012,56.596744],[-157.859766,56.483668],[-158.402954,56.455193],[-158.498837,56.38011],[-158.112718,56.240286],[-158.475258,56.093405],[-158.417889,56.036796],[-158.575042,56.121129],[-158.737009,55.953313],[-159.472801,55.83905],[-159.696713,55.573306],[-159.627482,55.803248],[-159.81107,55.85657],[-160.410823,55.66538],[-160.481633,55.489068],[-160.909625,55.52414],[-161.231535,55.357452],[-161.445196,55.368103],[-161.376102,55.569794],[-161.587047,55.62006],[-161.878076,55.223599],[-162.041236,55.236806],[-162.053281,55.074212],[-162.489735,55.064849],[-162.4168,55.104096],[-162.584872,55.298386],[-162.692309,55.197313],[-162.569289,54.97124],[-162.881639,54.934785],[-163.165036,55.099214],[-163.226313,55.042694],[-163.067008,54.979302],[-163.373207,54.800841],[-163.057228,54.688101],[-163.344791,54.751211],[-163.572383,54.623211],[-164.179617,54.599188],[-164.41682,54.431713],[-164.844931,54.417583],[-164.949781,54.575697],[-164.48678,54.922441],[-163.568159,55.049145],[-163.318885,54.88012],[-163.268767,55.145465],[-162.86152,55.198339],[-161.816225,55.888993],[-160.898682,55.999014],[-160.814205,55.953834],[-160.940845,55.822529],[-160.806014,55.738241],[-160.668102,55.723556],[-160.769155,55.858268],[-160.293924,55.765556],[-160.273176,55.856881],[-160.534541,55.989498],[-160.357156,56.279582],[-158.957471,56.851184],[-158.660298,56.789015],[-158.659945,57.034585],[-158.376249,57.265542],[-157.786046,57.542189],[-157.573472,57.522732],[-157.703782,57.721768],[-157.596601,58.08867],[-157.39735,58.173383],[-157.524477,58.414506],[-156.980888,58.891031],[-158.190283,58.61371],[-158.512547,58.78311],[-158.487015,58.999872],[-158.179588,59.012245],[-158.522231,59.021763],[-158.789632,58.814257],[-158.827852,58.626432],[-158.704052,58.482759],[-158.880927,58.39067],[-159.657362,58.938712],[-159.908386,58.779903],[-160.322922,58.953953],[-160.31778,59.070477],[-161.751999,58.551842],[-162.171722,58.648441],[-161.769501,58.774937],[-161.828171,59.062702],[-162.048584,59.254177],[-161.738312,59.46701],[-162.453176,60.27854],[-162.1724,60.624038],[-162.571198,60.25189],[-162.453176,60.197639],[-162.503647,59.99923],[-163.349027,59.81989],[-164.079837,59.828034],[-164.1916,60.024496],[-165.129403,60.433707],[-164.961439,60.508391],[-165.362975,60.506866],[-164.97125,60.711434],[-164.945958,60.92106],[-165.132488,60.850145],[-165.194945,60.9739],[-164.87045,61.079564],[-165.2897,61.181714],[-165.403007,61.06706],[-165.578127,61.100361],[-165.662892,61.29457],[-165.921194,61.40308],[-165.767226,61.45695],[-165.807627,61.529171],[-166.165232,61.550618],[-166.158976,61.700437],[-165.82214,61.67061],[-166.092081,61.800733],[-165.640216,61.848041],[-165.706155,62.108365],[-164.837703,62.685267],[-164.783858,62.946154],[-164.493118,63.17767],[-164.066991,63.262276],[-163.316203,63.037763],[-162.587754,63.275727]]],[[[-169.267598,63.343995],[-168.692939,63.302282],[-168.818344,63.163224],[-169.396308,63.136617],[-169.638309,62.937527],[-170.512102,63.341881],[-171.067663,63.424579],[-171.433319,63.307578],[-171.849984,63.485039],[-171.699647,63.781728],[-170.950817,63.570127],[-170.281988,63.68502],[-169.974858,63.470618],[-169.267598,63.343995]]],[[[-162.614621,63.621832],[-162.341892,63.594062],[-162.676581,63.555648],[-162.614621,63.621832]]]]},\"properties\":{\"name\":\"Alaska\",\"nation\":\"USA \"}}]}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4ae4b07f02db624e8d","contributors":{"authors":[{"text":"Saltus, R. W.","contributorId":85588,"corporation":false,"usgs":true,"family":"Saltus","given":"R.","middleInitial":"W.","affiliations":[],"preferred":false,"id":186319,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Riggle, F. E.","contributorId":93874,"corporation":false,"usgs":true,"family":"Riggle","given":"F.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":186320,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Clark, B. T.","contributorId":108070,"corporation":false,"usgs":true,"family":"Clark","given":"B.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":186321,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hill, P. L.","contributorId":30201,"corporation":false,"usgs":true,"family":"Hill","given":"P.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":186318,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":21859,"text":"ofr9939 - 1999 - Historical trends of U.S. mineral statistics for gold, silver, and the rare earth elements","interactions":[],"lastModifiedDate":"2012-02-02T00:07:47","indexId":"ofr9939","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-39","title":"Historical trends of U.S. mineral statistics for gold, silver, and the rare earth elements","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr9939","issn":"0566-8174","usgsCitation":"Piper, D., Amey, E., Hilliard, H., Hedrick, J., Galtseva, N., and Nokleberg, W., 1999, Historical trends of U.S. mineral statistics for gold, silver, and the rare earth elements: U.S. Geological Survey Open-File Report 99-39, 28 p. ill. ;28 cm., https://doi.org/10.3133/ofr9939.","productDescription":"28 p. ill. ;28 cm.","costCenters":[],"links":[{"id":154102,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0039/report-thumb.jpg"},{"id":51339,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0039/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a54e4b07f02db62c107","contributors":{"authors":[{"text":"Piper, D.Z.","contributorId":34154,"corporation":false,"usgs":false,"family":"Piper","given":"D.Z.","email":"","affiliations":[],"preferred":false,"id":186009,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Amey, E.B.","contributorId":84787,"corporation":false,"usgs":true,"family":"Amey","given":"E.B.","email":"","affiliations":[],"preferred":false,"id":186013,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hilliard, H.E.","contributorId":79918,"corporation":false,"usgs":true,"family":"Hilliard","given":"H.E.","affiliations":[],"preferred":false,"id":186012,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hedrick, J.B.","contributorId":96717,"corporation":false,"usgs":true,"family":"Hedrick","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":186014,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Galtseva, N.","contributorId":51777,"corporation":false,"usgs":true,"family":"Galtseva","given":"N.","email":"","affiliations":[],"preferred":false,"id":186010,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Nokleberg, W. J. 0000-0002-1574-8869","orcid":"https://orcid.org/0000-0002-1574-8869","contributorId":68312,"corporation":false,"usgs":true,"family":"Nokleberg","given":"W. J.","affiliations":[],"preferred":false,"id":186011,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":23970,"text":"ofr9931 - 1999 - Principal facts for about 500 gravity stations in the vicinity of Amargosa Desert and Pahrump Valley, California and Nevada","interactions":[],"lastModifiedDate":"2012-02-02T00:08:01","indexId":"ofr9931","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-31","title":"Principal facts for about 500 gravity stations in the vicinity of Amargosa Desert and Pahrump Valley, California and Nevada","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr9931","issn":"0094-9140","usgsCitation":"Morin, R.L., Chuchel, B., and Blakely, R., 1999, Principal facts for about 500 gravity stations in the vicinity of Amargosa Desert and Pahrump Valley, California and Nevada: U.S. Geological Survey Open-File Report 99-31, ii, 18 p. ill., maps ;28 cm., https://doi.org/10.3133/ofr9931.","productDescription":"ii, 18 p. ill., maps ;28 cm.","costCenters":[],"links":[{"id":154989,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0031/report-thumb.jpg"},{"id":53163,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0031/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa9e4b07f02db6680f5","contributors":{"authors":[{"text":"Morin, R. L.","contributorId":95484,"corporation":false,"usgs":true,"family":"Morin","given":"R.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":191062,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chuchel, B. A.","contributorId":93064,"corporation":false,"usgs":true,"family":"Chuchel","given":"B. A.","affiliations":[],"preferred":false,"id":191061,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Blakely, R.J. 0000-0003-1701-5236","orcid":"https://orcid.org/0000-0003-1701-5236","contributorId":70755,"corporation":false,"usgs":true,"family":"Blakely","given":"R.J.","affiliations":[],"preferred":false,"id":191060,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":22389,"text":"ofr9865 - 1999 - Trends in base flows and extreme flows in the Beaver Kill Basin, Catskill Mountains, New York, 1915-94","interactions":[],"lastModifiedDate":"2017-06-01T08:30:48","indexId":"ofr9865","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"98-65","title":"Trends in base flows and extreme flows in the Beaver Kill Basin, Catskill Mountains, New York, 1915-94","docAbstract":"

Long-term records from five streamflow-gaging stations within and near the 300-square mile Beaver Kill Basin were analyzed to determine whether construction and presence of New York State Route 17 (NY 17), which was completed in the late 1960's, could have altered hydrologic processes in the basin and thereby adversely affected the basin's trout populations. The hypothesis investigated is that NY 17 has altered surface-water and shallow ground-water flowpaths where it parallels the stream and has increased runoff rates and thereby (1) increased the range in stream discharge (prolonged the base flows, decreased the low flows, and increased the high flows), and (2) altered stream-channel morphology through increased volume and velocity of stormflows.

\n

Analyses of base flows, discharge-duration curves, stage-to-discharge relations, peak and bankfull discharges, and flow extremes at a downstream (Beaver Kill at Cooks Falls) and a small tributary (Little Beaver Kill at Livingston Manor) site provide only limited evidence that NY 17 affected hydrologic processes within the basin. These effects are best indicated by significant increases in the magnitude and (or) the frequency of moderate to large discharges (exceedence probabilities) on an instantaneous basis at the Beaver Kill at Cooks Falls site after 1965. Increases in stormflows can not be attributed solely to NY 17, however, because the trend was evident long before NY 17 was constructed. Changes in land use in parts of the watershed may have contributed to gradual and continuous increases in stormflows throughout the entire 80 (plus) years of record.

\n

Changes in most base-flow and low-flow statistics for the downstream (Beaver Kill at Cooks Falls) site after 1965 are not statistically significant, but, changes in flow-duration curves and annual peak flows are evident. Flow-duration curves at this site indicate that there is a 16 percent increase in average daily flows after 1965. Annual peak flow data indicate that peak flows from storms recurring at 2-year (and longer) intervals after 1965 are significantly larger than those that recur at the same frequencies before 1965. The lack of comparable increases in peak flows from several nearby reference sites after 1965 indicate that the observed increases in peak flows may be unique to the Beaver Kill Basin.

\n

Flow-duration curves and many base-flow and high-flow statistics for the small tributary paralleled by NY 17 in the in the upper reaches of the basin (Little Beaver Kill at Livingston Manor) appear to be considerably altered since NY 17 was constructed. Flow-duration curves at this site indicate that there is about a 54 percent increase in average daily flows after 1965. Increases in the ratio of average annual base flow to average annual flow until 1965 then subsequent decreases suggest an extreme affect of NY 17 on hydrology of the subbasin. The effect of NY 17 on hydrology of the Little Beaver Kill subbasin cannot be defined with certainty, however, because the flow record after 1965 is too short; discharge monitoring was discontinued in 1981.

\n

The increases in peak stormflows in the lower Beaver Kill basin through the period of record may have increased the rates of bed-sediment erosion (degradation) and deposition and accelerated changes in stream-channel morphology, however, these possible effects were not examined. Suggestions for further investigation of the effects of NY 17 and of other factors on hydrology, channel morphology, fish habitat, and fish populations in the Beaver Kill Basin include (1) addition of streamflow gages or a creststage gage network at critical locations, (2) a review of engineering records and other aerial photographs for indications of changes in channel morphology, (3) compilation of temperature data and modeling spatial extent and magnitude of stressful summer temperatures (to selected trout species), and (4) confirming the extent and severity of toxic thermal episodes using in-situ fish toxicity tests.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr9865","issn":"0094-9140","collaboration":"Prepared in cooperation with the Town of Rockland","usgsCitation":"Baldigo, B., 1999, Trends in base flows and extreme flows in the Beaver Kill Basin, Catskill Mountains, New York, 1915-94: U.S. Geological Survey Open-File Report 98-65, iv, 17 p., https://doi.org/10.3133/ofr9865.","productDescription":"iv, 17 p.","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"links":[{"id":155228,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0065/coverthb.jpg"},{"id":51805,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0065/ofr19980065.pdf","text":"Report","size":"277 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 1998-0065"}],"contact":"

Director, New York Water Science Center
U.S. Geological Survey
425 Jordan Rd
Troy, NY 12180
(518) 285-5695 
http://ny.water.usgs.gov/

","tableOfContents":"","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4ce4b07f02db6265a9","contributors":{"authors":[{"text":"Baldigo, Barry P. 0000-0002-9862-9119","orcid":"https://orcid.org/0000-0002-9862-9119","contributorId":25174,"corporation":false,"usgs":true,"family":"Baldigo","given":"Barry P.","affiliations":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"preferred":true,"id":188156,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":22878,"text":"ofr9914 - 1999 - Regional geologic map of San Andreas and related faults in Carrizo Plain, Temblor, Caliente and La Panza Ranges and vicinity, California: A digital database","interactions":[],"lastModifiedDate":"2022-07-05T18:53:31.084128","indexId":"ofr9914","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-14","title":"Regional geologic map of San Andreas and related faults in Carrizo Plain, Temblor, Caliente and La Panza Ranges and vicinity, California: A digital database","docAbstract":"This Open-File Report is a digital geologic map database. The report serves to introduce and describe the digital data. There is no paper map included in the Open-File Report. The report includes PostScript and PDF plot files that can be used to plot images of the geologic map sheet and explanation sheet.\r\n\r\nThis digital map database is prepared from a previously published map by Dibblee (1973). The geologic map database delineates map units that are identified by general age, lithology, and clast size following the stratigraphic nomenclature of the U.S. Geological Survey. For descriptions of the units, their stratigraphic relations, and sources of geologic mapping, consult the explanation sheet (of99-14_4b.ps or of99-14_4d.pdf), or the original published paper map (Dibblee, 1973). The scale of the source map limits the spatial resolution (scale) of the database to 1:125,000 or smaller.\r\n\r\nFor those interested in the geology of Carrizo Plain and vicinity who do not use an ARC/INFO compatible Geographic Information System (GIS), but would like to obtain a paper map and explanation, PDF and PostScript plot files containing map images of the data in the digital database, as well as PostScript and PDF plot files of the explanation sheet and explanatory text, have been included in the database package (please see the section 'Digital Plot Files', page 5). The PostScript plot files require a gzip utility to access them.\r\n\r\nFor those without computer capability, we can provide users with the PostScript or PDF files on tape that can be taken to a vendor for plotting. Paper plots can also be ordered directly from the USGS (please see the section 'Obtaining Plots from USGS Open-File Services', page 5).\r\n\r\nThe content and character of the database, methods of obtaining it, and processes of extracting the map database from the tar (tape archive) file are described herein. The map database itself, consisting of six ARC/INFO coverages, can be obtained over the Internet or by magnetic tape copy as described below.\r\n\r\nThe database was compiled using ARC/INFO, a commercial Geographic Information System (Environmental Systems Research Institute, Redlands, California), with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). The ARC/INFO coverages are stored in uncompressed ARC export format (ARC/INFO version 7.x). All data files have been compressed, and may be uncompressed with gzip, which is available free of charge over the Internet via links from the USGS Public Domain Software page (http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/public.html). ARC/INFO export files (files with the .e00 extension) can be converted into ARC/INFO coverages in ARC/INFO (see below) and can be read by some other Geographic Information Systems, such as MapInfo via ArcLink and ESRI's ArcView.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr9914","usgsCitation":"Dibblee, T., Graham, S.E., Mahony, T.M., Blissenbach, J.L., Mariant, J.J., and Wentworth, C., 1999, Regional geologic map of San Andreas and related faults in Carrizo Plain, Temblor, Caliente and La Panza Ranges and vicinity, California: A digital database (Version 1.2, Revised Apr 5 1999): U.S. Geological Survey Open-File Report 99-14, Report: 12 p.; Data Files; Plot Files; Maps, https://doi.org/10.3133/ofr9914.","productDescription":"Report: 12 p.; Data Files; Plot Files; Maps","additionalOnlineFiles":"Y","costCenters":[{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":154478,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":12102,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/of99-014/","linkFileType":{"id":5,"text":"html"}},{"id":108390,"rank":700,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_13191.htm","linkFileType":{"id":5,"text":"html"},"description":"13191"}],"country":"United States","state":"California","otherGeospatial":"Carrizo Plain, Temblor, Caliente and La Panza Ranges and vicinity","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -120.5,\n 34.75\n ],\n [\n -119.5,\n 34.75\n ],\n [\n -119.5,\n 36\n ],\n [\n -120.5,\n 36\n ],\n [\n -120.5,\n 34.75\n ]\n ]\n ]\n }\n }\n ]\n}","edition":"Version 1.2, Revised Apr 5 1999","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a2ee4b07f02db61513d","contributors":{"authors":[{"text":"Dibblee, T. W.","contributorId":61455,"corporation":false,"usgs":true,"family":"Dibblee","given":"T. W.","affiliations":[],"preferred":false,"id":189054,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Graham, S. E.","contributorId":89923,"corporation":false,"usgs":true,"family":"Graham","given":"S.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":189055,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mahony, T. M.","contributorId":41451,"corporation":false,"usgs":true,"family":"Mahony","given":"T.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":189053,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Blissenbach, J. L.","contributorId":104934,"corporation":false,"usgs":true,"family":"Blissenbach","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":189056,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Mariant, J. J.","contributorId":6085,"corporation":false,"usgs":true,"family":"Mariant","given":"J.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":189052,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Wentworth, C. M. 0000-0003-2569-569X","orcid":"https://orcid.org/0000-0003-2569-569X","contributorId":106466,"corporation":false,"usgs":true,"family":"Wentworth","given":"C. M.","affiliations":[],"preferred":false,"id":189057,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":24187,"text":"ofr9942 - 1999 - Alaska resource data file: Karluk quadrangle","interactions":[],"lastModifiedDate":"2025-05-22T13:46:15.611285","indexId":"ofr9942","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-42","title":"Alaska resource data file: Karluk quadrangle","docAbstract":"

No abstract available.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr9942","usgsCitation":"Pilcher, S.H., 1999, Alaska resource data file: Karluk quadrangle: U.S. Geological Survey Open-File Report 99-42, 71 p., https://doi.org/10.3133/ofr9942.","productDescription":"71 p.","costCenters":[],"links":[{"id":404060,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_16271.htm","linkFileType":{"id":5,"text":"html"}},{"id":156998,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0042/report-thumb.jpg"},{"id":1593,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":53330,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0042/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Alaska","otherGeospatial":"Karluk quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -156,\n 58\n ],\n [\n -154,\n 58\n ],\n [\n -154,\n 57\n ],\n [\n -156,\n 57\n ],\n [\n -156,\n 58\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae0e4b07f02db68835f","contributors":{"authors":[{"text":"Pilcher, S. H.","contributorId":41861,"corporation":false,"usgs":true,"family":"Pilcher","given":"S.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":191467,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":22562,"text":"ofr98630 - 1999 - An Overview of the Factors Involved in Evaluating the Geochemical Effects of Highway Runoff on the Environment","interactions":[],"lastModifiedDate":"2012-03-08T17:16:14","indexId":"ofr98630","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"98-630","title":"An Overview of the Factors Involved in Evaluating the Geochemical Effects of Highway Runoff on the Environment","docAbstract":"Materials washed by rain and snowmelt from highways into adjacent surface waters, ground waters, and ecosystems can pollute water and affect biota. To understand the chemical behavior of any one of these materials and its effects on the environment requires knowledge of the chemistry of the material and how it interacts with other components in the local geochemical system. An integrated watershed approach, therefore, would be the most effective method to assess the effects of highway runoff on local receiving waters. Analysis of one or a few specific contaminants will provide limited and incomplete information and may be misleading in terms of environmental effects. This report addresses the background geochemistry required to model highway runoff and to make realistic assessments of the potential effects of runoff on the environment.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr98630","issn":"0094-9140","collaboration":"Prepared in cooperation with the Federal Highway Administration (A Contribution to the National Highway Runoff Data and Methodology Synthesis)","usgsCitation":"Bricker, O.P., 1999, An Overview of the Factors Involved in Evaluating the Geochemical Effects of Highway Runoff on the Environment: U.S. Geological Survey Open-File Report 98-630, vi, 28 p., https://doi.org/10.3133/ofr98630.","productDescription":"vi, 28 p.","onlineOnly":"Y","costCenters":[{"id":377,"text":"Massachusetts-Rhode Island Water Science Center","active":false,"usgs":true}],"links":[{"id":154457,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9586,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1998/ofr98-630/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adbe4b07f02db6860b5","contributors":{"authors":[{"text":"Bricker, Owen P.","contributorId":25142,"corporation":false,"usgs":true,"family":"Bricker","given":"Owen","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":188473,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":22834,"text":"ofr9928 - 1999 - Aeromagnetic survey in Wisconsin 1997-98; digital data files","interactions":[],"lastModifiedDate":"2024-08-15T14:12:50.888072","indexId":"ofr9928","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-28","title":"Aeromagnetic survey in Wisconsin 1997-98; digital data files","docAbstract":"

No abstract available.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr9928","issn":"0094-9140","collaboration":"The USGS does not provide technical support for the software associated with this publication.","usgsCitation":"Daniels, D.L., Nicholson, S.W., and Cannon, W., 1999, Aeromagnetic survey in Wisconsin 1997-98; digital data files: U.S. Geological Survey Open-File Report 99-28, 1 CD-ROM, https://doi.org/10.3133/ofr9928.","productDescription":"1 CD-ROM","costCenters":[],"links":[{"id":432758,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0028/ofr9928.zip","text":"CD-ROM","linkFileType":{"id":6,"text":"zip"}},{"id":156951,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Wisconsin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -94.01873873025606,\n 47.70127764471118\n ],\n [\n -94.01873873025606,\n 42.142033348044436\n ],\n [\n -85.7603841752986,\n 42.142033348044436\n ],\n [\n -85.7603841752986,\n 47.70127764471118\n ],\n [\n -94.01873873025606,\n 47.70127764471118\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db689dee","contributors":{"authors":[{"text":"Daniels, D. L.","contributorId":69114,"corporation":false,"usgs":true,"family":"Daniels","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":188962,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nicholson, S. W.","contributorId":79504,"corporation":false,"usgs":true,"family":"Nicholson","given":"S.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":188964,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cannon, W.F. 0000-0002-2699-8118","orcid":"https://orcid.org/0000-0002-2699-8118","contributorId":70382,"corporation":false,"usgs":true,"family":"Cannon","given":"W.F.","affiliations":[],"preferred":false,"id":188963,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":22108,"text":"ofr9933 - 1999 - Regional geochemical results from the analyses of rock, water, soil, stream sediment and vegetation samples; Fortymile River watershed, East-Central Alaska","interactions":[],"lastModifiedDate":"2012-02-02T00:07:52","indexId":"ofr9933","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-33","title":"Regional geochemical results from the analyses of rock, water, soil, stream sediment and vegetation samples; Fortymile River watershed, East-Central Alaska","language":"ENGLISH","publisher":"U.S. Geological Survey :\r\nBooks and Open-File Reports [distributor],","doi":"10.3133/ofr9933","issn":"0094-9140","usgsCitation":"Crock, J., Gough, L.P., Wanty, R., Day, W.C., Wang, B., Gamble, B.M., Henning, M., Brown, Z.A., and Meier, A.L., 1999, Regional geochemical results from the analyses of rock, water, soil, stream sediment and vegetation samples; Fortymile River watershed, East-Central Alaska: U.S. Geological Survey Open-File Report 99-33, 82 p. ill., map ;28 cm., https://doi.org/10.3133/ofr9933.","productDescription":"82 p. ill., map ;28 cm.","costCenters":[],"links":[{"id":154770,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0033/report-thumb.jpg"},{"id":51553,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0033/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c5d1","contributors":{"authors":[{"text":"Crock, J.G.","contributorId":58236,"corporation":false,"usgs":true,"family":"Crock","given":"J.G.","email":"","affiliations":[],"preferred":false,"id":187101,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gough, L. P.","contributorId":64198,"corporation":false,"usgs":true,"family":"Gough","given":"L.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":187102,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wanty, R. B. 0000-0002-2063-6423","orcid":"https://orcid.org/0000-0002-2063-6423","contributorId":66704,"corporation":false,"usgs":true,"family":"Wanty","given":"R. B.","affiliations":[],"preferred":false,"id":187103,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Day, W. C.","contributorId":6876,"corporation":false,"usgs":true,"family":"Day","given":"W.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":187100,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wang, Bronwen 0000-0003-1044-2227 bwang@usgs.gov","orcid":"https://orcid.org/0000-0003-1044-2227","contributorId":2351,"corporation":false,"usgs":true,"family":"Wang","given":"Bronwen","email":"bwang@usgs.gov","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":187099,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Gamble, B. M.","contributorId":79485,"corporation":false,"usgs":true,"family":"Gamble","given":"B.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":187104,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Henning, M.","contributorId":108141,"corporation":false,"usgs":true,"family":"Henning","given":"M.","affiliations":[],"preferred":false,"id":187107,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Brown, Z. A.","contributorId":82708,"corporation":false,"usgs":true,"family":"Brown","given":"Z.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":187106,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Meier, A. L.","contributorId":81480,"corporation":false,"usgs":true,"family":"Meier","given":"A.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":187105,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ,{"id":24189,"text":"ofr9941 - 1999 - Alaska resource data file: Trinity Islands quadrangle","interactions":[],"lastModifiedDate":"2025-05-21T18:46:46.898742","indexId":"ofr9941","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-41","title":"Alaska resource data file: Trinity Islands quadrangle","docAbstract":"

No abstract available.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr9941","issn":"0094-9140","usgsCitation":"Pilcher, S.H., 1999, Alaska resource data file: Trinity Islands quadrangle: U.S. Geological Survey Open-File Report 99-41, 12 p., https://doi.org/10.3133/ofr9941.","productDescription":"12 p.","costCenters":[],"links":[{"id":1595,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":389179,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_16270.htm"},{"id":53332,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0041/ofr9941.pdf","text":"Report","size":"102 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 99-41 PDF"},{"id":157132,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0041/report-thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Trinity Islands quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -156,\n 56.0\n ],\n [\n -154,\n 56.0\n ],\n [\n -154,\n 57.0\n ],\n [\n -156,\n 57.0\n ],\n [\n -156,\n 56.0\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae0e4b07f02db688322","contributors":{"authors":[{"text":"Pilcher, S. H.","contributorId":41861,"corporation":false,"usgs":true,"family":"Pilcher","given":"S.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":191469,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":23644,"text":"ofr9923 - 1999 - HYPOELLIPSE; a computer program for determining local earthquake hypocentral parameters, magnitude, and first-motion pattern","interactions":[],"lastModifiedDate":"2012-06-13T01:01:47","indexId":"ofr9923","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-23","title":"HYPOELLIPSE; a computer program for determining local earthquake hypocentral parameters, magnitude, and first-motion pattern","docAbstract":"This report provides Fortran source code and program manuals for HYPOELLIPSE, a computer program for determining hypocenters and magnitudes of near regional earthquakes and the ellipsoids that enclose the 68-percent confidence volumes of the computed hypocenters. HYPOELLIPSE was developed to meet the needs of U.S. Geological Survey (USGS) scientists studying crustal and sub-crustal earthquakes recorded by a sparse regional seismograph network. The program was extended to locate hypocenters of volcanic earthquakes recorded by seismographs distributed on and around the volcanic edifice, at elevations above and below the hypocenter. HYPOELLIPSE was used to locate events recorded by the USGS southern Alaska seismograph network from October 1971 to the early 1990s. Both UNIX and PC/DOS versions of the source code of the program are provided along with sample runs.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr9923","issn":"0094-9140","usgsCitation":"Lahr, J.C., 1999, HYPOELLIPSE; a computer program for determining local earthquake hypocentral parameters, magnitude, and first-motion pattern (Version 1.1, Revised 2012): U.S. Geological Survey Open-File Report 99-23, 1 v. 116 p. :ill. ;28 cm., https://doi.org/10.3133/ofr9923.","productDescription":"1 v. 116 p. :ill. ;28 cm.","onlineOnly":"Y","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true},{"id":379,"text":"Menlo Park Science Center","active":false,"usgs":true}],"links":[{"id":262842,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr_99_23.gif"},{"id":257486,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0023/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.1, Revised 2012","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a81e4b07f02db649e82","contributors":{"authors":[{"text":"Lahr, John C.","contributorId":20328,"corporation":false,"usgs":true,"family":"Lahr","given":"John","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":190474,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":23596,"text":"ofr9929 - 1999 - Lithology and aggregate quality attributes for the digital geologic map of Colorado","interactions":[],"lastModifiedDate":"2017-05-31T11:39:01","indexId":"ofr9929","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-29","title":"Lithology and aggregate quality attributes for the digital geologic map of Colorado","docAbstract":"This geologic map was prepared as a part of a study of digital\r\n methods and techniques as applied to complex geologic maps. The\r\n geologic map was digitized from the original scribe sheets used to\r\n prepare the published Geologic Map of Colorado (Tweto 1979).\r\n Consequently the digital version is at 1:500,000 scale using the\r\n Lambert Conformal Conic map projection parameters of the state base\r\n map. Stable base contact prints of the scribe sheets were scanned on\r\n a Tektronix 4991 digital scanner. The scanner automatically converts\r\n the scanned image to an ASCII vector format. These vectors were\r\n transferred to a VAX minicomputer, where they were then loaded into\r\n ARC/INFO. Each vector and polygon was given attributes derived from\r\n the original 1979 geologic map.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr9929","issn":"0094-9140","usgsCitation":"Knepper, D.H., Green, G.N., and Langer, W.H., 1999, Lithology and aggregate quality attributes for the digital geologic map of Colorado: U.S. Geological Survey Open-File Report 99-29, HTML Document; Report: 22 p., https://doi.org/10.3133/ofr9929.","productDescription":"HTML Document; Report: 22 p.","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":154847,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":341918,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0029/of99-29.pdf","text":"Report","size":"142 kB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"},{"id":1645,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0029/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Colorado","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-106.190554,40.997607],[-106.061181,40.996999],[-105.730421,40.996886],[-105.724804,40.99691],[-105.277138,40.998173],[-105.27686,40.998173],[-105.256527,40.998191],[-105.254779,40.99821],[-104.943371,40.998084],[-104.855273,40.998048],[-104.829504,40.99927],[-104.675999,41.000957],[-104.497149,41.001828],[-104.497058,41.001805],[-104.467672,41.001473],[-104.214692,41.001657],[-104.214191,41.001568],[-104.211473,41.001591],[-104.123586,41.001626],[-104.10459,41.001543],[-104.086068,41.001563],[-104.066961,41.001504],[-104.053249,41.001406],[-104.039238,41.001502],[-104.023383,41.001887],[-104.018223,41.001617],[-103.972642,41.001615],[-103.971373,41.001524],[-103.953525,41.001596],[-103.906324,41.001387],[-103.896207,41.00175],[-103.877967,41.001673],[-103.858449,41.001681],[-103.750498,41.002054],[-103.574522,41.001721],[-103.497447,41.001635],[-103.486697,41.001914],[-103.421975,41.002007],[-103.421925,41.001969],[-103.396991,41.002558],[-103.382492,41.002232],[-103.365314,41.001846],[-103.362979,41.001844],[-103.077804,41.002298],[-103.076536,41.002253],[-103.059538,41.002368],[-103.057998,41.002368],[-103.043444,41.002344],[-103.038704,41.002251],[-103.002026,41.002486],[-103.000102,41.0024],[-102.98269,41.002157],[-102.981483,41.002112],[-102.963669,41.002186],[-102.962522,41.002072],[-102.960706,41.002059],[-102.959624,41.002095],[-102.94483,41.002303],[-102.943109,41.002051],[-102.925568,41.00228],[-102.924029,41.002142],[-102.906547,41.002276],[-102.904796,41.002207],[-102.887407,41.002178],[-102.885746,41.002131],[-102.867822,41.002183],[-102.865784,41.001988],[-102.849263,41.002301],[-102.846455,41.002256],[-102.830303,41.002351],[-102.82728,41.002143],[-102.773546,41.002414],[-102.766723,41.002275],[-102.754617,41.002361],[-102.739624,41.00223],[-102.653463,41.002332],[-102.621033,41.002597],[-102.578696,41.002291],[-102.575738,41.002268],[-102.575496,41.0022],[-102.566048,41.0022],[-102.556789,41.002219],[-102.487955,41.002445],[-102.470537,41.002382],[-102.469223,41.002424],[-102.379593,41.002301],[-102.364066,41.002174],[-102.292833,41.002207],[-102.292622,41.00223],[-102.292553,41.002207],[-102.291354,41.002207],[-102.2721,41.002245],[-102.267812,41.002383],[-102.231931,41.002327],[-102.2122,41.002462],[-102.209361,41.002442],[-102.19121,41.002326],[-102.124972,41.002338],[-102.070598,41.002423],[-102.051718,41.002377],[-102.051614,41.002377],[-102.051292,40.749591],[-102.051292,40.749586],[-102.051398,40.697542],[-102.051725,40.537839],[-102.051519,40.520094],[-102.051465,40.440008],[-102.05184,40.396396],[-102.051572,40.39308],[-102.051798,40.360069],[-102.051553,40.349214],[-102.051309,40.338381],[-102.051922,40.235344],[-102.051894,40.229193],[-102.051909,40.162674],[-102.052001,40.148359],[-102.051744,40.003078],[-102.051569,39.849805],[-102.051363,39.843471],[-102.051318,39.833311],[-102.051254,39.818992],[-102.050594,39.675594],[-102.050099,39.653812],[-102.050422,39.646048],[-102.049954,39.592331],[-102.049806,39.574058],[-102.049764,39.56818],[-102.049554,39.538932],[-102.049673,39.536691],[-102.049679,39.506183],[-102.049369,39.423333],[-102.04937,39.41821],[-102.049167,39.403597],[-102.04896,39.373712],[-102.048449,39.303138],[-102.04725,39.13702],[-102.047189,39.133147],[-102.047134,39.129701],[-102.046571,39.047038],[-102.045388,38.813392],[-102.045334,38.799463],[-102.045448,38.783453],[-102.045371,38.770064],[-102.045287,38.755528],[-102.045375,38.754339],[-102.045212,38.697567],[-102.045156,38.688555],[-102.045127,38.686725],[-102.04516,38.675221],[-102.045102,38.674946],[-102.045074,38.669617],[-102.045288,38.615249],[-102.045288,38.615168],[-102.045211,38.581609],[-102.045189,38.558732],[-102.045223,38.543797],[-102.045112,38.523784],[-102.045262,38.505532],[-102.045263,38.505395],[-102.045324,38.453647],[-102.044936,38.41968],[-102.044442,38.415802],[-102.044944,38.384419],[-102.044613,38.312324],[-102.044568,38.268819],[-102.044567,38.268749],[-102.04451,38.262412],[-102.044398,38.250015],[-102.044251,38.141778],[-102.044589,38.125013],[-102.044255,38.113011],[-102.044644,38.045532],[-102.043844,37.928102],[-102.043845,37.926135],[-102.043219,37.867929],[-102.043033,37.824146],[-102.042953,37.803535],[-102.042668,37.788758],[-102.042158,37.760164],[-102.04199,37.738541],[-102.041876,37.723875],[-102.041574,37.680436],[-102.041694,37.665681],[-102.041582,37.654495],[-102.041585,37.644282],[-102.041618,37.607868],[-102.041894,37.557977],[-102.041899,37.541186],[-102.042016,37.535261],[-102.041786,37.506066],[-102.041801,37.469488],[-102.041755,37.434855],[-102.041669,37.43474],[-102.041676,37.409898],[-102.041586,37.38919],[-102.041524,37.375018],[-102.042089,37.352819],[-102.041974,37.352613],[-102.041817,37.30949],[-102.041664,37.29765],[-102.041963,37.258164],[-102.042002,37.141744],[-102.042135,37.125021],[-102.042092,37.125021],[-102.041809,37.111973],[-102.041983,37.106551],[-102.04192,37.035083],[-102.041749,37.034397],[-102.041921,37.032178],[-102.04195,37.030805],[-102.041952,37.024742],[-102.04224,36.993083],[-102.054503,36.993109],[-102.184271,36.993593],[-102.208316,36.99373],[-102.260789,36.994388],[-102.355288,36.994506],[-102.355367,36.994575],[-102.698142,36.995149],[-102.74206,36.997689],[-102.75986,37.000019],[-102.778569,36.999242],[-102.806762,37.000019],[-102.814616,37.000783],[-102.841989,36.999598],[-102.979613,36.998549],[-102.985807,36.998571],[-102.986976,36.998524],[-103.002199,37.000104],[-103.086106,37.000174],[-103.155922,37.000232],[-103.733247,36.998016],[-103.734364,36.998041],[-104.007855,36.996239],[-104.250536,36.994644],[-104.338833,36.993535],[-104.519257,36.993766],[-104.624556,36.994377],[-104.625545,36.993599],[-104.645029,36.993378],[-104.732031,36.993447],[-104.73212,36.993484],[-105.000554,36.993264],[-105.029228,36.992729],[-105.1208,36.995428],[-105.155042,36.995339],[-105.220613,36.995169],[-105.251296,36.995605],[-105.41931,36.995856],[-105.442459,36.995994],[-105.447255,36.996017],[-105.465182,36.995991],[-105.508836,36.995895],[-105.512485,36.995777],[-105.533922,36.995875],[-105.62747,36.995679],[-105.66472,36.995874],[-105.716471,36.995849],[-105.71847,36.995846],[-105.996159,36.995418],[-105.997472,36.995417],[-106.006634,36.995343],[-106.201469,36.994122],[-106.247705,36.994266],[-106.248675,36.994288],[-106.293279,36.99389],[-106.343139,36.99423],[-106.47628,36.993839],[-106.500589,36.993768],[-106.617159,36.992967],[-106.617125,36.993004],[-106.628652,36.993175],[-106.628733,36.993161],[-106.661344,36.993243],[-106.675626,36.993123],[-106.750591,36.992461],[-106.869796,36.992426],[-106.877292,37.000139],[-107.420913,37.000005],[-107.420915,37.000005],[-107.481737,37.000005],[-108.000623,37.000001],[-108.249358,36.999015],[-108.250635,36.999561],[-108.288086,36.999555],[-108.2884,36.99952],[-108.320464,36.999499],[-108.320721,36.99951],[-108.379203,36.999459],[-108.619689,36.999249],[-108.620309,36.999287],[-108.954404,36.998906],[-108.958868,36.998913],[-109.045223,36.999084],[-109.045166,37.072742],[-109.045058,37.074661],[-109.044995,37.086429],[-109.045189,37.096271],[-109.045173,37.109464],[-109.045203,37.111958],[-109.045156,37.112064],[-109.045995,37.177279],[-109.045978,37.201831],[-109.045487,37.210844],[-109.045584,37.249351],[-109.046039,37.249993],[-109.04581,37.374993],[-109.043464,37.484711],[-109.043137,37.499992],[-109.041915,37.530653],[-109.041865,37.530726],[-109.041806,37.604171],[-109.042131,37.617662],[-109.042089,37.623795],[-109.042269,37.666067],[-109.041732,37.711214],[-109.04176,37.713182],[-109.041636,37.74021],[-109.042098,37.74999],[-109.041461,37.800105],[-109.041754,37.835826],[-109.041723,37.842051],[-109.041844,37.872788],[-109.041653,37.88117],[-109.041058,37.907236],[-109.043121,37.97426],[-109.042819,37.997068],[-109.04282,37.999301],[-109.041837,38.153022],[-109.041762,38.16469],[-109.054648,38.244921],[-109.060062,38.275489],[-109.059962,38.499987],[-109.060253,38.599328],[-109.059541,38.719888],[-109.057388,38.795456],[-109.054189,38.874984],[-109.053943,38.904414],[-109.053797,38.905284],[-109.053233,38.942467],[-109.053292,38.942878],[-109.052436,38.999985],[-109.051512,39.126095],[-109.050765,39.366677],[-109.051363,39.497674],[-109.05104,39.660472],[-109.050615,39.87497],[-109.050873,40.058915],[-109.050813,40.059579],[-109.050944,40.180712],[-109.050973,40.180849],[-109.050969,40.222662],[-109.050946,40.444368],[-109.050314,40.495092],[-109.050698,40.499963],[-109.049955,40.539901],[-109.050074,40.540358],[-109.048044,40.619231],[-109.048249,40.653601],[-109.048373,40.662602],[-109.049088,40.714562],[-109.048455,40.826081],[-109.050076,41.000659],[-108.884138,41.000094],[-108.631108,41.000156],[-108.526667,40.999608],[-108.500659,41.000112],[-108.250649,41.000114],[-108.181227,41.000455],[-108.046539,41.002064],[-107.918421,41.002036],[-107.625624,41.002124],[-107.367443,41.003073],[-107.317794,41.002967],[-107.241194,41.002804],[-107.000606,41.003444],[-106.857773,41.002663],[-106.453859,41.002057],[-106.439563,41.001978],[-106.437419,41.001795],[-106.43095,41.001752],[-106.391852,41.001176],[-106.386356,41.001144],[-106.321165,40.999123],[-106.217573,40.997734],[-106.190554,40.997607]]]},\"properties\":{\"name\":\"Colorado\",\"nation\":\"USA \"}}]}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a61e4b07f02db635c03","contributors":{"authors":[{"text":"Knepper, Daniel H. dknepper@usgs.gov","contributorId":1242,"corporation":false,"usgs":true,"family":"Knepper","given":"Daniel","email":"dknepper@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":190382,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Green, Gregory N.","contributorId":40226,"corporation":false,"usgs":true,"family":"Green","given":"Gregory","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":190380,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Langer, William H. blanger@usgs.gov","contributorId":1241,"corporation":false,"usgs":true,"family":"Langer","given":"William","email":"blanger@usgs.gov","middleInitial":"H.","affiliations":[{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"preferred":false,"id":190381,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":24186,"text":"ofr9940 - 1999 - Alaska resource data file: Afognak quadrangle","interactions":[],"lastModifiedDate":"2025-05-29T17:17:01.932603","indexId":"ofr9940","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-40","title":"Alaska resource data file: Afognak quadrangle","docAbstract":"

No abstract available.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr9940","usgsCitation":"Pilcher, S.H., 1999, Alaska resource data file: Afognak quadrangle: U.S. Geological Survey Open-File Report 99-40, 15 p., https://doi.org/10.3133/ofr9940.","productDescription":"15 p.","costCenters":[],"links":[{"id":53329,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0040/ofr9940.pdf","size":"112 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 99-40"},{"id":156997,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0040/coverthb2.jpg"},{"id":404058,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_16276.htm","linkFileType":{"id":5,"text":"html"}},{"id":1592,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","otherGeospatial":"Afognak quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -154,\n 58\n ],\n [\n -151,\n 58\n ],\n [\n -151,\n 59\n ],\n [\n -154,\n 59\n ],\n [\n -154,\n 58\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae1e4b07f02db688673","contributors":{"authors":[{"text":"Pilcher, S. H.","contributorId":41861,"corporation":false,"usgs":true,"family":"Pilcher","given":"S.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":191466,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":24188,"text":"ofr9943 - 1999 - Alaska resource data file: Kodiak quadrangle","interactions":[],"lastModifiedDate":"2025-05-23T12:45:05.230186","indexId":"ofr9943","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-43","title":"Alaska resource data file: Kodiak quadrangle","docAbstract":"

No abstract available.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr9943","usgsCitation":"Pilcher, S.H., 1999, Alaska resource data file: Kodiak quadrangle: U.S. Geological Survey Open-File Report 99-43, 67 p., https://doi.org/10.3133/ofr9943.","productDescription":"67 p.","costCenters":[],"links":[{"id":404067,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_16272.htm","linkFileType":{"id":5,"text":"html"}},{"id":156930,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0043/report-thumb.jpg"},{"id":1594,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":486377,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0043/ofr19990043.pdf","size":"223 KB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Alaska","otherGeospatial":"Kodiak quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -154,\n 58\n ],\n [\n -152,\n 58\n ],\n [\n -152,\n 57\n ],\n [\n -154,\n 57\n ],\n [\n -154,\n 58\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae0e4b07f02db688316","contributors":{"authors":[{"text":"Pilcher, S. H.","contributorId":41861,"corporation":false,"usgs":true,"family":"Pilcher","given":"S.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":191468,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":24061,"text":"ofr9934 - 1999 - Geologic map of the Hart Peak quadrangle, California and Nevada: A digital database","interactions":[],"lastModifiedDate":"2023-06-14T14:47:54.029909","indexId":"ofr9934","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-34","title":"Geologic map of the Hart Peak quadrangle, California and Nevada: A digital database","docAbstract":"The Hart Peak 1:24,000-scale quadrangle is located about 12 km southwest of Searchlight, Nevada, comprehending the eastern part of the Castle Peaks, California, and most of the Castle Mountains and the northwestern part of the Piute Range, in California and Nevada. The Castle Peaks area constitutes the northeasternmost part of the northeast-trending New York Mountains. The Castle Mountains straddle the California-Nevada State line between the Castle Peaks and north-trending Piute Range. The southern part of the Piute Range, near Civil War-era Fort Piute, adjoins Homer Mountain mapped by Spencer and Turner (1985). Adjacent and nearby 1:24,000-scale quadrangles include Castle Peaks, East of Grotto Hills, Homer Mountain, and Signal Hill, Calif.; also Tenmile Well and West of Juniper Mine, Calif. and Nev.\n\nThe oldest rocks in the Hart Peak quadrangle are Early Proterozoic gneiss and foliated granite that crop out in the northern part of the quadrangle on the eastern flank of the Castle Peaks and in the central Castle Mountains (Wooden and Miller, 1990). Paleozoic rocks are uncommon and Mesozoic granitic rocks are not found in the map area. The older rocks are overlain nonconformably by several km of Miocene volcanic deposits, which accumulated in local basins. Local dikes and domes are sources of most Miocene eruptive units; younger Miocene intrusions cut all the older rocks. Upper Miocene to Quaternary gravel deposits interfinger with the uppermost volcanic flows; the contact between volcanic rocks and the gravel deposits is unconformable locally. Canyons and intermontane valleys contain dissected Quaternary alluvialfan deposits that are mantled by active drainage and alluvial fan detritus.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr9934","usgsCitation":"Nielson, J.E., Turner, R., and Bedford, D., 1999, Geologic map of the Hart Peak quadrangle, California and Nevada: A digital database: U.S. Geological Survey Open-File Report 99-34, Pamphlet: 44 p., 1 Plate: 40.00 x 36.00 inches, https://doi.org/10.3133/ofr9934.","productDescription":"Pamphlet: 44 p., 1 Plate: 40.00 x 36.00 inches","numberOfPages":"44","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":1731,"rank":10,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/0034/","linkFileType":{"id":5,"text":"html"}},{"id":108386,"rank":12,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/pdf/hpk_geo.pdf","linkFileType":{"id":5,"text":"html"},"description":"13175"},{"id":156778,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0034/report-thumb.jpg"},{"id":53235,"rank":11,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1999/0034/pdf/hpk_map.pdf","text":"Plate 1","linkFileType":{"id":1,"text":"pdf"}},{"id":284851,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/hpk_geol.e00.gz"},{"id":284852,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/hpk_str.e00.gz"},{"id":284853,"rank":4,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/hpk_smpl.e00.gz"},{"id":284854,"rank":5,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/hpk_shr.e00.gz"},{"id":284855,"rank":6,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/of99-34_3a.tar.gz"},{"id":284856,"rank":7,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/import.aml"},{"id":284857,"rank":8,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/1999/0034/of99-34_2a.txt"},{"id":397727,"rank":9,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_13175.htm"}],"scale":"24000","projection":"Universal Transverse Mercator projection","datum":"National Geodetic Datum of 1929","country":"United States","state":"California, Nevada","otherGeospatial":"Hart Peak quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -115.125,35.25 ], [ -115.125,35.375 ], [ -115.0,35.375 ], [ -115.0,35.25 ], [ -115.125,35.25 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd5c8be4b0b290850fa8a4","contributors":{"authors":[{"text":"Nielson, Jane E.","contributorId":9701,"corporation":false,"usgs":true,"family":"Nielson","given":"Jane","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":191238,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Turner, Ryan D.","contributorId":76596,"corporation":false,"usgs":true,"family":"Turner","given":"Ryan D.","affiliations":[],"preferred":false,"id":191240,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bedford, David R.","contributorId":26352,"corporation":false,"usgs":true,"family":"Bedford","given":"David R.","affiliations":[],"preferred":false,"id":191239,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":24226,"text":"ofr9927 - 1999 - An interactive computer program to extrapolate the clay fraction distributions of truncated grain-size data","interactions":[],"lastModifiedDate":"2012-02-02T00:08:05","indexId":"ofr9927","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-27","title":"An interactive computer program to extrapolate the clay fraction distributions of truncated grain-size data","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr9927","issn":"0094-9140","usgsCitation":"Poppe, L., and Eliason, A., 1999, An interactive computer program to extrapolate the clay fraction distributions of truncated grain-size data: U.S. Geological Survey Open-File Report 99-27, 44 p. ill. ;28 cm., https://doi.org/10.3133/ofr9927.","productDescription":"44 p. ill. ;28 cm.","costCenters":[],"links":[{"id":155552,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0027/report-thumb.jpg"},{"id":53360,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0027/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad7e4b07f02db68445f","contributors":{"authors":[{"text":"Poppe, L.J.","contributorId":72782,"corporation":false,"usgs":true,"family":"Poppe","given":"L.J.","affiliations":[],"preferred":false,"id":191528,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Eliason, A.H.","contributorId":40972,"corporation":false,"usgs":true,"family":"Eliason","given":"A.H.","email":"","affiliations":[],"preferred":false,"id":191527,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":23941,"text":"ofr9932 - 1999 - Preliminary geologic map of the San Guillermo Mountain Quadrangle, Ventura County, California","interactions":[],"lastModifiedDate":"2017-03-09T14:08:29","indexId":"ofr9932","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-32","title":"Preliminary geologic map of the San Guillermo Mountain Quadrangle, Ventura County, California","docAbstract":"New 1:24,000-scale geologic mapping in the Cuyama 30' x 60' quadrangle, in support of the USGS Southern California Areal Mapping Project (SCAMP), is contributing to a more complete understanding of the stratigraphy, structure, and tectonic evolution of the complex junction area between the NW-striking Coast Ranges and EW-striking western Transverse Ranges. The 1:24,000-scale geologic map of the San Guillermo Mountain quadrangle is one of six contiguous 7 1/2' quadrangle geologic maps in the eastern part of the Cuyama map area being compiled for a more detailed portrayal and reevaluation of geologic structures and rock units shown on previous geologic maps of the area (e.g., Dibblee, 1979). The following observations and interpretations are based on the new San Guillermo Mountain geologic compilation: \r\n(1) The new geologic mapping in the northern part of the San Guillermo Mountain quadrangle allows for reinterpretation of fault architecture that bears on potential seismic hazards of the region. Previous mapping had depicted the eastern Big Pine fault (BPF) as a northeast-striking, sinistral strike-slip fault that extends for 30 km northeast of the Cuyama River to its intersection with the San Andreas fault (SAF). In contrast the new mapping indicates that the eastern BPF is a thrust fault that curves from a northeast strike to an east strike, where it is continuous with the San Guillermo thrust fault, and dies out further east about 15 km south of the SAF. This redefined segment of the BPF is a south-dipping, north-directed thrust, with dominantly dip slip components (rakes > 60 deg.), that places Middle Eocene marine rocks (Juncal and Matilija Formations) over Miocene through Pliocene(?) nonmarine rocks (Caliente, Quatal, and Morales Formations). Although a broad northeast-striking fault zone, exhibiting predominantly sinistral components of slip (rakes < 45 deg.), extends to the SAF as previously mapped, the fault zone does not connect to the southwest with the BPF but instead curves into a southwest-directed thrust fault system a short distance north of the BPF. Oligocene to Pliocene(?) nonmarine sedimentary and volcanic rocks of the Plush Ranch, Caliente, and Morales(?) Formations are folded on both sides of this fault zone (informally named the Lockwood Valley fault zone [LVFZ] on the map). South-southeast of the LVFZ overturned folds have southward vergence. Several moderate-displacement (< 50 m), mainly northwest-dipping thrust and reverse faults, exhibiting mostly sinistral-oblique slip, flank and strike parallel to the overturned folds. The fold vergence and thrust direction associated with the LVFZ is opposite to that of the redefined BPF, providing further evidence that the two faults are distinct structures. These revised fault interpretations bring into question earlier estimates of net sinistral strike-slip displacement of as much as 13 km along the originally defined eastern BPF, which assumed structural connection with the LVFZ. Also, despite sparse evidence for repeated Quaternary movement on the LVFZ (e.g., Dibblee, 1982), the potential for a large earthquake involving coseismic slip on both the LVFZ and the central BPF to the southwest may not be as great as once believed. (2) Several generations of Pleistocene and younger dissected alluvial terrace and fan deposits sit at various levels above modern stream channels throughout the quadrangle. These deposits give testimony to the recent uplift and related fault deformation that has occurred in the area. (3) A vast terrane of Eocene marine sedimentary rocks (Juncal and Matilija Formations and Cozy Dell Shale) exposed south of the Big Pine fault forms the southern two-thirds of the San Guillermo Mountain quadrangle. Benthic foraminifers collected from various shale intervals within the Juncal Formation indicate a Middle Eocene age (Ulatisian) for the entire formation (K. McDougall, unpub. data, 1998) and deposition at paleodepths as great as 2,000 m (i.e., lowe","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr9932","issn":"0094-9140","usgsCitation":"Minor, S., 1999, Preliminary geologic map of the San Guillermo Mountain Quadrangle, Ventura County, California: U.S. Geological Survey Open-File Report 99-32, https://doi.org/10.3133/ofr9932.","costCenters":[],"links":[{"id":154924,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1648,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0032/","linkFileType":{"id":5,"text":"html"}},{"id":109852,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22573.htm","linkFileType":{"id":5,"text":"html"},"description":"22573"}],"country":"United States","state":"California","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67ac75","contributors":{"authors":[{"text":"Minor, S.A.","contributorId":65047,"corporation":false,"usgs":true,"family":"Minor","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":191012,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":24347,"text":"ofr995 - 1999 - Calculation of coal resources using ARC/INFO and Earth Vision; methodology for the National Coal Resource Assessment","interactions":[],"lastModifiedDate":"2017-03-09T12:46:49","indexId":"ofr995","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-5","title":"Calculation of coal resources using ARC/INFO and Earth Vision; methodology for the National Coal Resource Assessment","docAbstract":"

This report documents a comparison of two methods of resource calculation that are being used in the National Coal Resource Assessment project of the U.S. Geological Survey (USGS). Tewalt (1998) discusses the history of using computer software packages such as GARNET (Graphic Analysis of Resources using Numerical Evaluation Techniques), GRASS (Geographic Resource Analysis Support System), and the vector-based geographic information system (GIS) ARC/INFO (ESRI, 1998) to calculate coal resources within the USGS. The study discussed here, compares resource calculations using ARC/INFO* (ESRI, 1998) and EarthVision (EV)* (Dynamic Graphics, Inc. 1997) for the coal-bearing John Henry Member of the Straight Cliffs Formation of Late Cretaceous age in the Kaiparowits Plateau of southern Utah. Coal resource estimates in the Kaiparowits Plateau using ARC/INFO are reported in Hettinger, and others, 1996.

","language":"English","publisher":"U.S. Geological Survey,","publisherLocation":"Reston, VA","doi":"10.3133/ofr995","issn":"0094-9140","usgsCitation":"Roberts, L., and Biewick, L., 1999, Calculation of coal resources using ARC/INFO and Earth Vision; methodology for the National Coal Resource Assessment: U.S. Geological Survey Open-File Report 99-5, 7 p., https://doi.org/10.3133/ofr995.","productDescription":"7 p.","costCenters":[],"links":[{"id":156749,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0005/report-thumb.jpg"},{"id":53447,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0005/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":1708,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0005/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a07e4b07f02db5f969a","contributors":{"authors":[{"text":"Roberts, L.N.","contributorId":71559,"corporation":false,"usgs":true,"family":"Roberts","given":"L.N.","email":"","affiliations":[],"preferred":false,"id":191731,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Biewick, L.R.","contributorId":61067,"corporation":false,"usgs":true,"family":"Biewick","given":"L.R.","email":"","affiliations":[],"preferred":false,"id":191730,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":21726,"text":"ofr99159 - 1999 - Determination of chemical-constituent loads during base-flow and storm-runoff conditions near historical mines in Prospect Gulch, upper Animas River watershed, southwestern Colorado","interactions":[],"lastModifiedDate":"2020-03-03T06:54:28","indexId":"ofr99159","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-159","title":"Determination of chemical-constituent loads during base-flow and storm-runoff conditions near historical mines in Prospect Gulch, upper Animas River watershed, southwestern Colorado","docAbstract":"Prospect Gulch is a major source of iron, aluminum, zinc, and other metals to\r\nCement Creek. Information is needed to prioritize remediation and develop strategies for\r\ncleanup of historical abandoned mine sites in Prospect Gulch. Chemical-constituent\r\nloads were determined in Prospect Gulch, a high-elevation alpine stream in southwestern\r\nColorado that is affected by natural acid drainage from weathering of hydro-thermally\r\naltered igneous rock and acidic metal-laden discharge from historical abandoned mines.\r\nThe objective of the study was to identify metal sources to Prospect Gulch. A tracer\r\nsolution was injected into Prospect Gulch during water-quality sampling so that loading\r\nof geochemical constituents could be calculated throughout the study reach. A\r\nthunderstorm occurred during the tracer study, hence, metal loads were measured for\r\nstorm-runoff as well as for base flow. Data from different parts of the study reach\r\nrepresents different flow conditions. The beginning of the reach represents background\r\nconditions during base flow immediately upstream from the Lark and Henrietta mines\r\n(samples PG5 to PG45). Other samples were collected during storm runoff conditions\r\n(PG100 to PG291); during the first flush of metal runoff following the onset of rainfall\r\n(PG303 to PG504), and samples PG542 to PG700 were collected during low-flow\r\nconditions.\r\nDuring base-flow conditions, the percentage increase in loads for major\r\nconstituents and trace metals was more than an order of magnitude greater than the\r\ncorresponding 36 % increase in stream discharge. Within the study reach, the highest\r\npercentage increases for dissolved loads were 740 % for iron (Fe), 465 % for aluminum\r\n(Al), 500 % for lead (Pb), 380 % for copper (Cu), 100 % for sulfate (SO4), and 50 % for\r\nzinc (Zn). Downstream loads near the mouth of Prospect Gulch often greatly exceeded\r\nthe loads generated within the study reach but varied by metal species. For example, the\r\nstudy reach accounts for about 6 % of the dissolved-Fe load, 13 % of the dissolved-Al\r\nload, and 18 % of the dissolved-Zn load; but probably contributes virtually all of the\r\ndissolved Cu and Pb. The greatest downstream gains in dissolved trace-metal loads\r\noccurred near waste-rock dumps for the historical mines. The major sources of trace\r\nmetals to the study reach were related to mining. The major source of trace metals in the\r\nreach near the mouth is unknown, however is probably related to weathering of highly\r\naltered igneous rocks, although an unknown component of trace metals could be derived\r\nfrom mining sources The late-summer storm dramatically increased the loads of most dissolved and\r\ntotal constituents. The effects of the storm were divided into two distinct periods; (1) a\r\nfirst flush of higher metal concentrations that occurred soon after rainfall began and (2)\r\nthe peak discharge of the storm runoff. The first flush contained the highest loads of\r\ndissolved Fe, total and dissolved Zn, Cu, and Cd. The larger concentrations of Fe and\r\nsulfate in the first flush were likely derived from iron hydroxide minerals such as jarosite\r\nand schwertmanite, which are common on mine dumps in the Prospect Gulch drainage\r\nbasin. Peak storm runoff contained the highest measured loads of total Fe, and of total\r\nand dissolved calcium, magnesium, silica and Al, which were probably derived from\r\nweathering of igneous rocks and clay minerals in the drainage basin.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr99159","issn":"0566-8174","usgsCitation":"Wirt, L., Leib, K., Bove, D.J., Mast, M., Evans, J., and Meeker, G., 1999, Determination of chemical-constituent loads during base-flow and storm-runoff conditions near historical mines in Prospect Gulch, upper Animas River watershed, southwestern Colorado: U.S. Geological Survey Open-File Report 99-159, 39 p., https://doi.org/10.3133/ofr99159.","productDescription":"39 p.","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":154783,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1171,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0159/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Colorado ","otherGeospatial":"Prospect Gulch","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -109.072265625,\n 36.80928470205937\n ],\n [\n -104.1064453125,\n 36.80928470205937\n ],\n [\n -104.1064453125,\n 39.87601941962116\n ],\n [\n -109.072265625,\n 39.87601941962116\n ],\n [\n -109.072265625,\n 36.80928470205937\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa8e4b07f02db667823","contributors":{"authors":[{"text":"Wirt, Laurie","contributorId":13204,"corporation":false,"usgs":true,"family":"Wirt","given":"Laurie","affiliations":[],"preferred":false,"id":185426,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leib, K.J.","contributorId":62236,"corporation":false,"usgs":true,"family":"Leib","given":"K.J.","email":"","affiliations":[],"preferred":false,"id":185428,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bove, D. J.","contributorId":70767,"corporation":false,"usgs":true,"family":"Bove","given":"D.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":185430,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mast, M.A.","contributorId":67871,"corporation":false,"usgs":true,"family":"Mast","given":"M.A.","affiliations":[],"preferred":false,"id":185429,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Evans, J. B.","contributorId":77182,"corporation":false,"usgs":true,"family":"Evans","given":"J. B.","affiliations":[],"preferred":false,"id":185431,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Meeker, G.P.","contributorId":34539,"corporation":false,"usgs":true,"family":"Meeker","given":"G.P.","email":"","affiliations":[],"preferred":false,"id":185427,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":21572,"text":"ofr9917 - 1999 - Adsorption capabilities of selected clinoptilolite-rich rocks as it relates to mine drainage remediation","interactions":[],"lastModifiedDate":"2017-03-06T16:15:42","indexId":"ofr9917","displayToPublicDate":"1999-08-01T00:00:00","publicationYear":"1999","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":"99-17","title":"Adsorption capabilities of selected clinoptilolite-rich rocks as it relates to mine drainage remediation","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey :\r\nBooks and Open-file Reports, U.S. Geological Survey [distributor],","doi":"10.3133/ofr9917","usgsCitation":"Gilbert, J., O’Meara, P.M., Crock, J., Wildeman, T., and Desborough, G.A., 1999, Adsorption capabilities of selected clinoptilolite-rich rocks as it relates to mine drainage remediation: U.S. Geological Survey Open-File Report 99-17, ii, 50 p. ill. ;28 cm., https://doi.org/10.3133/ofr9917.","productDescription":"ii, 50 p. ill. ;28 cm.","costCenters":[],"links":[{"id":153525,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1999/0017/report-thumb.jpg"},{"id":51159,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1999/0017/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b04e4b07f02db69936c","contributors":{"authors":[{"text":"Gilbert, J.S.","contributorId":22796,"corporation":false,"usgs":true,"family":"Gilbert","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":184704,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"O’Meara, P. M.","contributorId":99172,"corporation":false,"usgs":true,"family":"O’Meara","given":"P.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":184708,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Crock, J.G.","contributorId":58236,"corporation":false,"usgs":true,"family":"Crock","given":"J.G.","email":"","affiliations":[],"preferred":false,"id":184707,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wildeman, T.R.","contributorId":30248,"corporation":false,"usgs":true,"family":"Wildeman","given":"T.R.","email":"","affiliations":[],"preferred":false,"id":184705,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Desborough, G. A.","contributorId":34527,"corporation":false,"usgs":true,"family":"Desborough","given":"G.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":184706,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":21637,"text":"ofr98558 - 1999 - Borehole-geophysical characterization of a fractured-bedrock aquifer, Rye, New Hampshire","interactions":[],"lastModifiedDate":"2019-10-16T06:41:37","indexId":"ofr98558","displayToPublicDate":"1999-07-01T00:00:00","publicationYear":"1999","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":"98-558","title":"Borehole-geophysical characterization of a fractured-bedrock aquifer, Rye, New Hampshire","docAbstract":"

Borehole geophysical logs collected from six wells were analyzed to characterize a high-yield bedrock aquifer in the Town of Rye, New Hampshire. Video camera, caliper, fluid temperature and conductivity, natural gamma, and deviation logs were used to identify and characterize the fractured bedrock. More advanced geophysical tools included acoustic televiewer and borehole radar, which were used to determine the orientation of fractures and fracture zones that intersect and surround each of the six wells. Borehole-radar surveys included single-hole directional-reflection surveys. The borehole radar logs indicate that the bedrock aquifer is highly fractured. Zones of low velocity and high attenuation in the radar logs correlated with the fractures and fracture zones observed in the standard geophysical logs of the six wells. The strikes of the fracture sets, as determined by the acoustic televiewer, coincide with photolineaments identified on high-altitude and low-altitude aerial photography and side-looking airborne radar (SLAR). The coincident fracture sets and lineaments trend N100°E, N140°E, N170°E, and N40°E.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr98558","issn":"0566-8174","usgsCitation":"Johnson, C., Dunstan, A., Mack, T.J., and Lane, J., 1999, Borehole-geophysical characterization of a fractured-bedrock aquifer, Rye, New Hampshire: U.S. Geological Survey Open-File Report 98-558, iv, 61 p., https://doi.org/10.3133/ofr98558.","productDescription":"iv, 61 p.","costCenters":[{"id":493,"text":"Office of Ground Water","active":true,"usgs":true}],"links":[{"id":154251,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0558/report-thumb.jpg"},{"id":51194,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0558/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"New Hampshire","otherGeospatial":"Town of Rye","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -70.71144104003906,\n 43.04317449464363\n ],\n [\n -70.73186874389648,\n 43.060485107925864\n ],\n [\n -70.74817657470703,\n 43.05433914524682\n ],\n [\n -70.79486846923827,\n 43.02460405939348\n ],\n [\n -70.81392288208006,\n 43.0242275735442\n ],\n [\n -70.81855773925781,\n 43.006279070055704\n ],\n [\n -70.80825805664062,\n 43.001634197412876\n ],\n [\n -70.7625961303711,\n 42.986692901622135\n ],\n [\n -70.71144104003906,\n 43.04317449464363\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a14e4b07f02db602985","contributors":{"authors":[{"text":"Johnson, C. D.","contributorId":8120,"corporation":false,"usgs":true,"family":"Johnson","given":"C. D.","affiliations":[],"preferred":false,"id":185004,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dunstan, A.H.","contributorId":98759,"corporation":false,"usgs":true,"family":"Dunstan","given":"A.H.","email":"","affiliations":[],"preferred":false,"id":185007,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mack, Thomas J. 0000-0002-0496-3918","orcid":"https://orcid.org/0000-0002-0496-3918","contributorId":39814,"corporation":false,"usgs":true,"family":"Mack","given":"Thomas","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":185005,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lane, J.W. Jr.","contributorId":66723,"corporation":false,"usgs":true,"family":"Lane","given":"J.W.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":185006,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":32171,"text":"ofr98493 - 1999 - Geologic map of the Little Black Canyon Quadrangle, Malheur County, Oregon","interactions":[],"lastModifiedDate":"2012-02-02T00:09:23","indexId":"ofr98493","displayToPublicDate":"1999-07-01T00:00:00","publicationYear":"1999","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":"98-493","title":"Geologic map of the Little Black Canyon Quadrangle, Malheur County, Oregon","language":"ENGLISH","doi":"10.3133/ofr98493","isbn":"0607920726 ","usgsCitation":"Evans, J.G., and Binger, G.B., 1999, Geologic map of the Little Black Canyon Quadrangle, Malheur County, Oregon: U.S. Geological Survey Open-File Report 98-493, 1 map : photocopy ; 58 x 42 cm., on sheet 83 x 84 cm., folded to envelope 25 x 20 cm. + 1 pamphlet (12 leaves : maps ; 28 cm.), https://doi.org/10.3133/ofr98493.","productDescription":"1 map : photocopy ; 58 x 42 cm., on sheet 83 x 84 cm., folded to envelope 25 x 20 cm. + 1 pamphlet (12 leaves : maps ; 28 cm.)","costCenters":[],"links":[{"id":108679,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_16266.htm","linkFileType":{"id":5,"text":"html"},"description":"16266"},{"id":163407,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0493/report-thumb.jpg"},{"id":60282,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1998/0493/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":60283,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0493/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"24000","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afde4b07f02db696dec","contributors":{"authors":[{"text":"Evans, James G. jevans@usgs.gov","contributorId":2396,"corporation":false,"usgs":true,"family":"Evans","given":"James","email":"jevans@usgs.gov","middleInitial":"G.","affiliations":[],"preferred":true,"id":207879,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Binger, G. Benjamin","contributorId":86820,"corporation":false,"usgs":true,"family":"Binger","given":"G.","email":"","middleInitial":"Benjamin","affiliations":[],"preferred":false,"id":207880,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":23805,"text":"ofr98412 - 1999 - Summary and evaluation of pesticides in field blanks collected for the National Water-Quality Assessment Program, 1992-95","interactions":[],"lastModifiedDate":"2016-06-21T09:32:15","indexId":"ofr98412","displayToPublicDate":"1999-07-01T00:00:00","publicationYear":"1999","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":"98-412","title":"Summary and evaluation of pesticides in field blanks collected for the National Water-Quality Assessment Program, 1992-95","docAbstract":"

Field blanks are quality-control samples used to assess contamination in environmental water samples. Contamination is the unintentional introduction of a chemical (pesticides in this instance) into an environmental water sample from sources such as inadequately cleaned equipment, dirty hands, dust, rain, or fumes. Contamination causes a positive bias in analytical measurements that may need to be considered in the analysis and interpretation of the environmental data. Estimates of pesticide contamination in environmental water samples collected for the National Water-Quality Assessment (NAWQA) Program are used to qualify, where needed, interpretations of the occurrence and distribution of pesticides in the surface and ground waters of the United States.

\n

Field blanks collected from 1992 to 1995 as part of the NAWAQA Program were analyzed for 88 pesticides and pesticide metabolites. Of 47 pesticides determined by gas chromatography/mass spectrometry, 23 were detected at least once in 175 surface-water field blanks and 15 were detected at least once in 145 ground-water field blanks. The most frequently detected pesticides in surface-water field blanks were atrazine (in 10.9 percent of blanks), simazine (9.1 percent), and metolachlor (4.6 percent). The most frequently detected pesticides in ground-water field blanks were p,p' -DDE (4.1 percent) and atrazine (2.8 percent). The maximum pesticide concentration detected by gas chromatography/mass spectrometry in a surface-water field blank was 0.120 microgram per liter (µg/L) for pronamide; the maximum concentration detected in a ground-water field blank was 0.013 µg /L for chlorpyrifos and prometon. Of 41 pesticides determined by high-performance liquid chromatography, diuron and 2,4-D were detected once in 109 surface-water field blanks and bromacil, diuron, and fenuron were detected once in 104 ground-water field blanks. Except for a detection of 2,4-D at 0.230 µg /L, the detectable concentrations of these pesticides were less than or equal to 0.020 µg /L.

\n

Field blanks showed no evidence of contamination by most pesticides. Of the 88 pesticides for which the field blanks were analyzed, 63 were not detected in field blanks from surface-water sites and 70 were not detected in field blanks from ground-water sites. Therefore, environmental data for the pesticides not detected in field blanks can be interpreted without qualification for contamination.

\n

Field blanks did show evidence of contamination by some pesticides. Most of the pesticides detected in field blanks, however, were detected more frequently and at higher concentrations in environmental water samples. Two criteria were used to evaluate the need to consider contamination in water-quality assessments: (1) a ratio of the frequency of pesticide detection in environmental water samples to the frequency of detection in field blanks of 5.0 or less and (2) a ratio of the median concentration detected in environmental water samples to the maximum concentration detected in field blanks of 2.0 or less. These criteria indicate that contamination, for the majority of the pesticide data collected for the NAWQA Program, probably does not need to be considered in the analysis and interpretation of (1) the frequency of pesticide detection or (2) the median concentration of pesticides detected. Contamination must be considered, however, in detection frequency for cispermethrin, pronamide, p,p' -DDE, pebulate, propargite, ethalfluralin, and triallate in surface water and fenuron, benfluralin, pronamide, cis-permethrin, triallate, chlorpyrifos, trifluralin, propanil, p,p' -DDE, bromacil, dacthal, diazinon, and diuron in ground water. Contamination also must be considered in median concentrations detected for pronamide, p,p' -DDE, propargite, napropamide, and triallate in surface water and benfluralin, cis-permethrin, triallate, chlorpyrifos, trifluralin, p,p' -DDE, dacthal, and diazinon in ground water.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Indianapolis, IN","doi":"10.3133/ofr98412","issn":"0094-9140","usgsCitation":"Martin, J.D., Gilliom, R.J., and Schertz, T.L., 1999, Summary and evaluation of pesticides in field blanks collected for the National Water-Quality Assessment Program, 1992-95: U.S. Geological Survey Open-File Report 98-412, viii, 102 p. :ill., map ;28 cm., https://doi.org/10.3133/ofr98412.","productDescription":"viii, 102 p. :ill., map ;28 cm.","startPage":"1","endPage":"102","numberOfPages":"108","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":346,"text":"Indiana Water Science Center","active":true,"usgs":true}],"links":[{"id":156897,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0412/report-thumb.jpg"},{"id":1800,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0412/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-66.28243,18.51476],[-65.7713,18.42668],[-65.591,18.22803],[-65.84716,17.97591],[-66.59993,17.98182],[-67.18416,17.94655],[-67.24243,18.37446],[-67.10068,18.5206],[-66.28243,18.51476]]],[[[-155.54211,19.08348],[-155.68817,18.91619],[-155.93665,19.05939],[-155.90806,19.33888],[-156.07347,19.70294],[-156.02368,19.81422],[-155.85008,19.97729],[-155.91907,20.17395],[-155.86108,20.26721],[-155.78505,20.2487],[-155.40214,20.07975],[-155.22452,19.99302],[-155.06226,19.8591],[-154.80741,19.50871],[-154.83147,19.45328],[-155.22217,19.23972],[-155.54211,19.08348]]],[[[-156.07926,20.64397],[-156.41445,20.57241],[-156.58673,20.783],[-156.70167,20.8643],[-156.71055,20.92676],[-156.61258,21.01249],[-156.25711,20.91745],[-155.99566,20.76404],[-156.07926,20.64397]]],[[[-156.75824,21.17684],[-156.78933,21.06873],[-157.32521,21.09777],[-157.25027,21.21958],[-156.75824,21.17684]]],[[[-157.65283,21.32217],[-157.70703,21.26442],[-157.7786,21.27729],[-158.12667,21.31244],[-158.2538,21.53919],[-158.29265,21.57912],[-158.0252,21.71696],[-157.94161,21.65272],[-157.65283,21.32217]]],[[[-159.34512,21.982],[-159.46372,21.88299],[-159.80051,22.06533],[-159.74877,22.1382],[-159.5962,22.23618],[-159.36569,22.21494],[-159.34512,21.982]]],[[[-94.81758,49.38905],[-94.64,48.84],[-94.32914,48.67074],[-93.63087,48.60926],[-92.61,48.45],[-91.64,48.14],[-90.83,48.27],[-89.6,48.01],[-89.27292,48.01981],[-88.37811,48.30292],[-87.43979,47.94],[-86.46199,47.55334],[-85.65236,47.22022],[-84.87608,46.90008],[-84.77924,46.6371],[-84.54375,46.53868],[-84.6049,46.4396],[-84.3367,46.40877],[-84.14212,46.51223],[-84.09185,46.27542],[-83.89077,46.11693],[-83.61613,46.11693],[-83.46955,45.99469],[-83.59285,45.81689],[-82.55092,45.34752],[-82.33776,44.44],[-82.13764,43.57109],[-82.43,42.98],[-82.9,42.43],[-83.12,42.08],[-83.142,41.97568],[-83.02981,41.8328],[-82.69009,41.67511],[-82.43928,41.67511],[-81.27775,42.20903],[-80.24745,42.3662],[-78.93936,42.86361],[-78.92,42.965],[-79.01,43.27],[-79.17167,43.46634],[-78.72028,43.62509],[-77.73789,43.62906],[-76.82003,43.62878],[-76.5,44.01846],[-76.375,44.09631],[-75.31821,44.81645],[-74.867,45.00048],[-73.34783,45.00738],[-71.50506,45.0082],[-71.405,45.255],[-71.08482,45.30524],[-70.66,45.46],[-70.305,45.915],[-69.99997,46.69307],[-69.23722,47.44778],[-68.905,47.185],[-68.23444,47.35486],[-67.79046,47.06636],[-67.79134,45.70281],[-67.13741,45.13753],[-66.96466,44.8097],[-68.03252,44.3252],[-69.06,43.98],[-70.11617,43.68405],[-70.64548,43.09024],[-70.81489,42.8653],[-70.825,42.335],[-70.495,41.805],[-70.08,41.78],[-70.185,42.145],[-69.88497,41.92283],[-69.96503,41.63717],[-70.64,41.475],[-71.12039,41.49445],[-71.86,41.32],[-72.295,41.27],[-72.87643,41.22065],[-73.71,40.9311],[-72.24126,41.11948],[-71.945,40.93],[-73.345,40.63],[-73.982,40.628],[-73.95232,40.75075],[-74.25671,40.47351],[-73.96244,40.42763],[-74.17838,39.70926],[-74.90604,38.93954],[-74.98041,39.1964],[-75.20002,39.24845],[-75.52805,39.4985],[-75.32,38.96],[-75.07183,38.78203],[-75.05673,38.40412],[-75.37747,38.01551],[-75.94023,37.21689],[-76.03127,37.2566],[-75.72205,37.93705],[-76.23287,38.31921],[-76.35,39.15],[-76.54272,38.71762],[-76.32933,38.08326],[-76.99,38.23999],[-76.30162,37.91794],[-76.25874,36.9664],[-75.9718,36.89726],[-75.86804,36.55125],[-75.72749,35.55074],[-76.36318,34.80854],[-77.39763,34.51201],[-78.05496,33.92547],[-78.55435,33.86133],[-79.06067,33.49395],[-79.20357,33.15839],[-80.30132,32.50935],[-80.86498,32.0333],[-81.33629,31.44049],[-81.49042,30.72999],[-81.31371,30.03552],[-80.98,29.18],[-80.53558,28.47213],[-80.53,28.04],[-80.05654,26.88],[-80.08801,26.20576],[-80.13156,25.81677],[-80.38103,25.20616],[-80.68,25.08],[-81.17213,25.20126],[-81.33,25.64],[-81.71,25.87],[-82.24,26.73],[-82.70515,27.49504],[-82.85526,27.88624],[-82.65,28.55],[-82.93,29.1],[-83.70959,29.93656],[-84.1,30.09],[-85.10882,29.63615],[-85.28784,29.68612],[-85.7731,30.15261],[-86.4,30.4],[-87.53036,30.27433],[-88.41782,30.3849],[-89.18049,30.31598],[-89.59383,30.15999],[-89.41373,29.89419],[-89.43,29.48864],[-89.21767,29.29108],[-89.40823,29.15961],[-89.77928,29.30714],[-90.15463,29.11743],[-90.88022,29.14854],[-91.62678,29.677],[-92.49906,29.5523],[-93.22637,29.78375],[-93.84842,29.71363],[-94.69,29.48],[-95.60026,28.73863],[-96.59404,28.30748],[-97.14,27.83],[-97.37,27.38],[-97.38,26.69],[-97.33,26.21],[-97.14,25.87],[-97.53,25.84],[-98.24,26.06],[-99.02,26.37],[-99.3,26.84],[-99.52,27.54],[-100.11,28.11],[-100.45584,28.69612],[-100.9576,29.38071],[-101.6624,29.7793],[-102.48,29.76],[-103.11,28.97],[-103.94,29.27],[-104.45697,29.57196],[-104.70575,30.12173],[-105.03737,30.64402],[-105.63159,31.08383],[-106.1429,31.39995],[-106.50759,31.75452],[-108.24,31.75485],[-108.24194,31.34222],[-109.035,31.34194],[-111.02361,31.33472],[-113.30498,32.03914],[-114.815,32.52528],[-114.72139,32.72083],[-115.99135,32.61239],[-117.12776,32.53534],[-117.29594,33.04622],[-117.944,33.62124],[-118.4106,33.74091],[-118.51989,34.02778],[-119.081,34.078],[-119.43884,34.34848],[-120.36778,34.44711],[-120.62286,34.60855],[-120.74433,35.15686],[-121.71457,36.16153],[-122.54747,37.55176],[-122.51201,37.78339],[-122.95319,38.11371],[-123.7272,38.95166],[-123.86517,39.76699],[-124.39807,40.3132],[-124.17886,41.14202],[-124.2137,41.99964],[-124.53284,42.76599],[-124.14214,43.70838],[-124.02053,44.6159],[-123.89893,45.52341],[-124.07963,46.86475],[-124.39567,47.72017],[-124.68721,48.18443],[-124.5661,48.37971],[-123.12,48.04],[-122.58736,47.096],[-122.34,47.36],[-122.5,48.18],[-122.84,49],[-120,49],[-117.03121,49],[-116.04818,49],[-113,49],[-110.05,49],[-107.05,49],[-104.04826,48.99986],[-100.65,49],[-97.22872,49.0007],[-95.15907,49],[-95.15609,49.38425],[-94.81758,49.38905]]],[[[-153.00631,57.11584],[-154.00509,56.73468],[-154.5164,56.99275],[-154.67099,57.4612],[-153.76278,57.81657],[-153.22873,57.96897],[-152.56479,57.90143],[-152.14115,57.59106],[-153.00631,57.11584]]],[[[-165.57916,59.90999],[-166.19277,59.75444],[-166.84834,59.94141],[-167.45528,60.21307],[-166.46779,60.38417],[-165.67443,60.29361],[-165.57916,59.90999]]],[[[-171.73166,63.78252],[-171.11443,63.59219],[-170.49111,63.69498],[-169.68251,63.43112],[-168.68944,63.29751],[-168.77194,63.1886],[-169.52944,62.97693],[-170.29056,63.19444],[-170.67139,63.37582],[-171.55306,63.31779],[-171.79111,63.40585],[-171.73166,63.78252]]],[[[-155.06779,71.14778],[-154.34417,70.69641],[-153.90001,70.88999],[-152.21001,70.82999],[-152.27,70.60001],[-150.73999,70.43002],[-149.72,70.53001],[-147.61336,70.21403],[-145.68999,70.12001],[-144.92001,69.98999],[-143.58945,70.15251],[-142.07251,69.85194],[-140.98599,69.712],[-140.9925,66.00003],[-140.99777,60.3064],[-140.013,60.27684],[-139.039,60.00001],[-138.34089,59.56211],[-137.4525,58.905],[-136.47972,59.46389],[-135.47583,59.78778],[-134.945,59.27056],[-134.27111,58.86111],[-133.35555,58.41029],[-132.73042,57.69289],[-131.70781,56.55212],[-130.00778,55.91583],[-129.97999,55.285],[-130.53611,54.80275],[-131.08582,55.17891],[-131.96721,55.49778],[-132.25001,56.37],[-133.53918,57.17889],[-134.07806,58.12307],[-135.03821,58.18771],[-136.62806,58.21221],[-137.80001,58.5],[-139.86779,59.53776],[-140.82527,59.72752],[-142.57444,60.08445],[-143.95888,59.99918],[-145.92556,60.45861],[-147.11437,60.88466],[-148.22431,60.67299],[-148.01807,59.97833],[-148.57082,59.91417],[-149.72786,59.70566],[-150.60824,59.36821],[-151.71639,59.15582],[-151.85943,59.74498],[-151.40972,60.7258],[-150.34694,61.03359],[-150.62111,61.28442],[-151.89584,60.7272],[-152.57833,60.06166],[-154.01917,59.35028],[-153.28751,58.86473],[-154.23249,58.14637],[-155.30749,57.72779],[-156.30833,57.42277],[-156.5561,56.97998],[-158.11722,56.46361],[-158.43332,55.99415],[-159.60333,55.56669],[-160.28972,55.64358],[-161.22305,55.36473],[-162.23777,55.02419],[-163.06945,54.68974],[-164.78557,54.40417],[-164.94223,54.57222],[-163.84834,55.03943],[-162.87,55.34804],[-161.80417,55.89499],[-160.5636,56.00805],[-160.07056,56.41806],[-158.68444,57.01668],[-158.4611,57.21692],[-157.72277,57.57],[-157.55027,58.32833],[-157.04167,58.91888],[-158.19473,58.6158],[-158.51722,58.78778],[-159.05861,58.42419],[-159.71167,58.93139],[-159.98129,58.57255],[-160.35527,59.07112],[-161.355,58.67084],[-161.96889,58.67166],[-162.05499,59.26693],[-161.87417,59.63362],[-162.51806,59.98972],[-163.81834,59.79806],[-164.66222,60.26748],[-165.34639,60.5075],[-165.35083,61.0739],[-166.12138,61.50002],[-165.73445,62.075],[-164.91918,62.63308],[-164.56251,63.14638],[-163.75333,63.21945],[-163.06722,63.05946],[-162.26056,63.54194],[-161.53445,63.45582],[-160.77251,63.76611],[-160.95834,64.2228],[-161.51807,64.40279],[-160.77778,64.7886],[-161.39193,64.77724],[-162.45305,64.55944],[-162.75779,64.33861],[-163.54639,64.55916],[-164.96083,64.44695],[-166.42529,64.68667],[-166.845,65.0889],[-168.11056,65.67],[-166.70527,66.08832],[-164.47471,66.57666],[-163.65251,66.57666],[-163.7886,66.07721],[-161.67777,66.11612],[-162.48971,66.73557],[-163.71972,67.11639],[-164.43099,67.61634],[-165.39029,68.04277],[-166.76444,68.35888],[-166.20471,68.88303],[-164.43081,68.91554],[-163.16861,69.37111],[-162.93057,69.85806],[-161.9089,70.33333],[-160.9348,70.44769],[-159.03918,70.89164],[-158.11972,70.82472],[-156.58082,71.35776],[-155.06779,71.14778]]]]},\"properties\":{\"name\":\"United States\"}}]}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db6996f9","contributors":{"authors":[{"text":"Martin, Jeffrey D. 0000-0003-1994-5285 jdmartin@usgs.gov","orcid":"https://orcid.org/0000-0003-1994-5285","contributorId":1066,"corporation":false,"usgs":true,"family":"Martin","given":"Jeffrey","email":"jdmartin@usgs.gov","middleInitial":"D.","affiliations":[{"id":27231,"text":"Indiana-Kentucky Water Science Center","active":true,"usgs":true},{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true},{"id":346,"text":"Indiana Water Science Center","active":true,"usgs":true}],"preferred":true,"id":190761,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gilliom, Robert J. rgilliom@usgs.gov","contributorId":488,"corporation":false,"usgs":true,"family":"Gilliom","given":"Robert","email":"rgilliom@usgs.gov","middleInitial":"J.","affiliations":[{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true}],"preferred":true,"id":190760,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schertz, Terry L. tschertz@usgs.gov","contributorId":188,"corporation":false,"usgs":true,"family":"Schertz","given":"Terry","email":"tschertz@usgs.gov","middleInitial":"L.","affiliations":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"preferred":true,"id":190759,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":23507,"text":"ofr98639 - 1999 - Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Determination of arsenic and selenium in water and sediment by graphite furnace atomic absorption spectrometry","interactions":[],"lastModifiedDate":"2021-05-28T16:50:46.118378","indexId":"ofr98639","displayToPublicDate":"1999-07-01T00:00:00","publicationYear":"1999","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":"98-639","title":"Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Determination of arsenic and selenium in water and sediment by graphite furnace atomic absorption spectrometry","docAbstract":"Graphite furnace-atomic absorption spectrometry (GF-AAS) is a sensitive, precise, and accurate technique that can be used to determine arsenic and selenium in samples of water and sediment. The GF-AAS method has been developed to replace the hydride generation-atomic absorption spectrometry (HG-AAS) methods because the method detection limits are similar, bias and variability are comparable, and interferences are minimal. Advantages of the GF-AAS method include shorter sample preparation time, increased sample throughput from simultaneous multielement analysis, reduced amount of chemical waste, reduced sample volume requirements, increased linear concentration range, and the use of a more accurate digestion procedure. The linear concentration range for arsenic and selenium is 1 to 50 micrograms per liter in solution; the current method detection limit for arsenic in solution is 0.9 microgram per liter; the method detection limit for selenium in solution is 1 microgram per liter.\r\nThis report describes results that were obtained using stop-flow and low-flow conditions during atomization. The bias and variability of the simultaneous determination of arsenic and selenium by GF-AAS under both conditions are supported with results from standard reference materials--water and sediment, real water samples, and spike recovery measurements. Arsenic and selenium results for all Standard Reference Water Samples analyzed were within one standard deviation of the most probable values. Long-term spike recoveries at 6.25, 25.0, 37.5 micrograms per liter in reagent-, ground-, and surface-water samples for arsenic averaged 103 plus or minus 2 percent using low-flow conditions and 104 plus or minus 4 percent using stop-flow conditions. Corresponding recoveries for selenium were 98 plus or minus 13 percent using low-flow conditions and 87 plus or minus 24 percent using stop-flow conditions. Spike recoveries at 25 micrograms per liter in 120 water samples ranged from 97 to 99 percent for arsenic and from 82 to 93 percent for selenium, depending on the flow conditions used. Statistical analysis of dissolved and whole-water recoverable analytical results for the same set of water samples indicated that there is no significant difference between the GF-AAS and HG-AAS methods.\r\nInterferences related to various chemical constituents were also identified. Although sulfate and chloride in association with various cations might interfere with the determination of arsenic and selenium by GF-AAS, the use of a magnesium nitrate/palladium matrix modifier and low-flow argon during atomization helped to minimize such interferences. When using stabilized temperature platform furnace conditions where stop flow is used during atomization, the addition of hydrogen (5 percent volume/volume) to the argon minimized chemical interferences. Nevertheless, stop flow during atomization was found to be less effective than low flow in reducing interference effects.","language":"English","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey :\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr98639","usgsCitation":"Jones, S.R., and Garbarino, J.R., 1999, Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Determination of arsenic and selenium in water and sediment by graphite furnace atomic absorption spectrometry: U.S. Geological Survey Open-File Report 98-639, viii, 39 p., https://doi.org/10.3133/ofr98639.","productDescription":"viii, 39 p.","costCenters":[{"id":452,"text":"National Water Quality Laboratory","active":true,"usgs":true}],"links":[{"id":156414,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0639/report-thumb.jpg"},{"id":52795,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0639/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a54e4b07f02db62bbab","contributors":{"authors":[{"text":"Jones, Sandra R.","contributorId":22800,"corporation":false,"usgs":true,"family":"Jones","given":"Sandra","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":190223,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Garbarino, John R. jrgarb@usgs.gov","contributorId":2189,"corporation":false,"usgs":true,"family":"Garbarino","given":"John","email":"jrgarb@usgs.gov","middleInitial":"R.","affiliations":[{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true}],"preferred":true,"id":190222,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":21986,"text":"ofr9834 - 1999 - The oil and gas resource potential of the Arctic National Wildlife Refuge 1002 area, Alaska","interactions":[{"subject":{"id":70180393,"text":"70180393 - 1999 - Carboniferous and older carbonate rocks: Lithofacies, extent, and reservoir quality: Chapter CC in The oil and gas resource potential of the Arctic National Wildlife Refuge 1002 area, Alaska","indexId":"70180393","publicationYear":"1999","noYear":false,"chapter":"CC","title":"Carboniferous and older carbonate rocks: Lithofacies, extent, and reservoir quality: Chapter CC in The oil and gas resource potential of the Arctic National Wildlife Refuge 1002 area, Alaska"},"predicate":"IS_PART_OF","object":{"id":21986,"text":"ofr9834 - 1999 - The oil and gas resource potential of the Arctic National Wildlife Refuge 1002 area, Alaska","indexId":"ofr9834","publicationYear":"1999","noYear":false,"title":"The oil and gas resource potential of the Arctic National Wildlife Refuge 1002 area, Alaska"},"id":1}],"lastModifiedDate":"2022-08-23T18:23:55.826411","indexId":"ofr9834","displayToPublicDate":"1999-07-01T00:00:00","publicationYear":"1999","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":"98-34","title":"The oil and gas resource potential of the Arctic National Wildlife Refuge 1002 area, Alaska","docAbstract":"

In anticipation of the need for scientific support for policy decisions and in light of the decade-old perspective of a previous assessment, the USGS has completed a reassessment of the petroleum potential of the ANWR 1002 area. This was a comprehensive study by a team of USGS scientists in collaboration on technical issues (but not the assessment) with colleagues in other agencies and universities. The study incorporated all available public data and included new field and analytic work as well as the reevaluation of all previous work.

Using a methodology similar to that used in previous USGS assessments in the ANWR and the NPRA, this study estimates that the total quantity of technically recoverable oil in the 1002 area is 7.7 BBO (mean value), which is distributed among 10 plays. Using a conservative estimate of 512 million barrels as a minimum commercially developable field size, then about 2.6 BBO of oil distributed in about three fields is expected to be economically recoverable in the undeformed part of the 1002 area. Using a similar estimated minimum field size, which may not be conservative considering the increased distance from infrastructure, the deformed area would be expected to have about 600 MMBO in one field.

The amounts of in-place oil estimated for the 1002 area are larger than previous USGS estimates. The increase results in large part from improved resolution of reprocessed seismic data and geologic analogs provided by recent nearby oil discoveries.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr9834","collaboration":"The USGS acknowledges the cooperation of the U.S. Fish and Wildlife Service, Bureau of Land Management, Minerals Management Service, and the Alaska Department of Natural Resources (Geological and Geophysical Surveys, Division of Oil and Gas, and Oil and Gas Conservation Commission)","usgsCitation":"ANWR Assessment Team, 1999, The oil and gas resource potential of the Arctic National Wildlife Refuge 1002 area, Alaska: U.S. Geological Survey Open-File Report 98-34, Introduction: 12 p.; Chapters; 2 CD-ROMs, https://doi.org/10.3133/ofr9834.","productDescription":"Introduction: 12 p.; Chapters; 2 CD-ROMs","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":154318,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":405471,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_16437.htm","linkFileType":{"id":5,"text":"html"}},{"id":1166,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1998/ofr-98-0034/","text":"Index page with links to chapters","linkFileType":{"id":5,"text":"html"}},{"id":334265,"rank":4,"type":{"id":2,"text":"Additional Report Piece"},"url":"https://pubs.usgs.gov/fs/fs-0028-01/","text":"Fact Sheet 0028–01: Online Report"},{"id":334264,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/ofr-98-0034/ANWR1002.pdf","text":"Table of Contents, Introduction"}],"country":"United States","state":"Alaska","otherGeospatial":"ANWR, Arctic National Wildlife Refuge 1002 Area","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -142.00927734375,\n 69.84246157021256\n ],\n [\n -142.71514892578125,\n 69.69524461137115\n ],\n [\n -142.91015625,\n 69.60259197307883\n ],\n [\n -143.02276611328125,\n 69.57768853364969\n ],\n [\n -143.909912109375,\n 69.5776885336496\n ],\n [\n -143.909912109375,\n 69.64944636884633\n ],\n [\n -144.613037109375,\n 69.64944636884633\n ],\n [\n -144.613037109375,\n 69.69333832362335\n ],\n [\n -146.2554931640625,\n 69.69333832362335\n ],\n [\n -146.2554931640625,\n 69.72001075967263\n ],\n [\n -146.4422607421875,\n 69.8225761110076\n ],\n [\n -146.4312744140625,\n 69.85854556489717\n ],\n [\n -146.1236572265625,\n 70.02434079930296\n ],\n [\n -146.0247802734375,\n 70.04309814378463\n ],\n [\n -145.865478515625,\n 70.16460963678996\n ],\n [\n -145.04150390625,\n 70.01683312770945\n ],\n [\n -144.580078125,\n 70.02434079930296\n ],\n [\n -143.6737060546875,\n 70.15715255172064\n ],\n [\n -142.9705810546875,\n 70.13849806648298\n ],\n [\n -142.5421142578125,\n 70.01307827710367\n ],\n [\n -142.1246337890625,\n 69.8736722051942\n ],\n [\n -142.00927734375,\n 69.84246157021256\n ]\n ]\n ]\n }\n }\n ]\n}","publicComments":"Originally published as a set of 2 CD-ROMs; the files are now available online.","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a80e4b07f02db649399","contributors":{"authors":[{"text":"ANWR Assessment Team","contributorId":128138,"corporation":true,"usgs":false,"organization":"ANWR Assessment Team","id":529085,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ]}