This study describes and validates a new method for extracting perfluoroalkyl and polyfluoroalkyl substances (PFAS) from whole-body fish tissue, demonstrates that freeze-dry preservation of tissue conserves bioaccumulative PFAS, and details a method demonstration on Lake Michigan fish. While fish filets are more commonly analyzed for their significance to human health, whole fish are useful to determine ecological impacts, but published methods such as EPA 1633 do not produce reliable results for this more challenging matrix. Here we show that lipid removal technology produces clean extracts without the need for solid-phase extraction or evaporative concentration, which often lead to loss of some PFAS. This method achieves an accuracy of 96 ± 9% for the detection of 45 PFAS while also offering benefits of a simple procedure, reduced processing time, and decreased waste generation compared to multistep cleanup and concentration methods. A test of freeze-drying demonstrated that compounds detected in Great Lakes fish were retained, but volatile compounds including sulfonamide precursors and ethanols were lost. To demonstrate field performance, the entire method was applied to whole-fish composites from Lake Michigan. Results from these samples reveal that the PFAS concentration was driven by collection location, while the distribution of PFAS was dictated by fish species.
","language":"English","publisher":"American Chemical Society","doi":"10.1021/acs.est.4c10001","usgsCitation":"Balgooyen, S., Scott, M., Blackwell, B., Pulster, E.L., Mahon, M.B., Lepak, R., and Backe, W., 2025, A high efficiency method for the extraction and quantitative analysis of 45 PFAS in whole fish: Environmental Science & Technology, v. 59, no. 7, p. 3759-3770, https://doi.org/10.1021/acs.est.4c10001.","productDescription":"12 p.","startPage":"3759","endPage":"3770","ipdsId":"IP-168887","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":500227,"rank":2,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC12351992/","text":"External Repository"},{"id":482378,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"59","issue":"7","noUsgsAuthors":false,"publicationDate":"2025-02-15","publicationStatus":"PW","contributors":{"authors":[{"text":"Balgooyen, Sarah","contributorId":351231,"corporation":false,"usgs":false,"family":"Balgooyen","given":"Sarah","affiliations":[{"id":65526,"text":"SpecPro Professional Services","active":true,"usgs":false}],"preferred":false,"id":928243,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scott, Madelynn","contributorId":351232,"corporation":false,"usgs":false,"family":"Scott","given":"Madelynn","affiliations":[{"id":39337,"text":"Oak Ridge Associated Universities","active":true,"usgs":false}],"preferred":false,"id":928244,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Blackwell, Brett R.","contributorId":173601,"corporation":false,"usgs":false,"family":"Blackwell","given":"Brett R.","affiliations":[{"id":6914,"text":"U.S. Environmental Protection Agency","active":true,"usgs":false}],"preferred":false,"id":928245,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pulster, Erin L. 0000-0003-4574-8613","orcid":"https://orcid.org/0000-0003-4574-8613","contributorId":300266,"corporation":false,"usgs":true,"family":"Pulster","given":"Erin","email":"","middleInitial":"L.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":928246,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Mahon, Michael B. 0000-0002-9436-2998","orcid":"https://orcid.org/0000-0002-9436-2998","contributorId":304824,"corporation":false,"usgs":false,"family":"Mahon","given":"Michael","email":"","middleInitial":"B.","affiliations":[{"id":39516,"text":"University of Notre Dame","active":true,"usgs":false}],"preferred":false,"id":928247,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lepak, Ryan F. 0000-0003-2806-1895","orcid":"https://orcid.org/0000-0003-2806-1895","contributorId":210990,"corporation":false,"usgs":false,"family":"Lepak","given":"Ryan F.","affiliations":[{"id":16925,"text":"University of Wisconsin-Madison","active":true,"usgs":false}],"preferred":false,"id":928248,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Backe, Will","contributorId":351233,"corporation":false,"usgs":false,"family":"Backe","given":"Will","affiliations":[{"id":6784,"text":"US EPA","active":true,"usgs":false}],"preferred":false,"id":928249,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70271398,"text":"70271398 - 2025 - Exploration for blind geothermal systems in the eastern Great Basin of Utah: An update on the “Lund North” INGENIOUS detailed study site","interactions":[],"lastModifiedDate":"2025-09-11T14:06:59.431869","indexId":"70271398","displayToPublicDate":"2025-02-15T08:56:42","publicationYear":"2025","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Exploration for blind geothermal systems in the eastern Great Basin of Utah: An update on the “Lund North” INGENIOUS detailed study site","docAbstract":"Existing geothermal production in Utah is commonly collocated with surficial expressions of geothermal heat including active hot springs and hot spring deposits. However, geothermal potential across the Great Basin region is thought to be much higher for hidden or blind geothermal systems. Accordingly, exploration techniques that can locate geothermal resources that lack surface thermal features could support future development of these systems. The goal of the INGENIOUS project is to reduce exploration risk and discover new, economically viable hidden geothermal systems in the Great Basin region. This paper summarizes the efforts and preliminary results of blind geothermal resource prospecting in Utah as part of the larger INGENIOUS project. The Lund North site in the Basin and Range province of southwest Utah was designated as the fourth detailed study site for the project. The site was initially identified from the preliminary Play Fairway Analysis (PFA) geothermal favorability map, which is based on various data elements, and the identification of favorable structural settings across Utah. This site contains existing legacy data including a thermal gradient borehole with a heat-flow value exceeding 220 mW/m2. New data collected at this site include terrestrial gravity, magnetotellurics, transient electromagnetics, fluid geochemistry, geologic mapping, UAV-based lidar, paleomagnetism, aeromagnetic surveys, and a shallow temperature survey. Preliminary data and model interpretations corroborate the presence of a large, east-dipping, northeast-southwest-trending normal fault on the edge of a typical Basin and Range graben. Quaternary fault mapping refined by high-resolution lidar surveys suggests a complex step over fault geometry. Utilizing multi-disciplinary datasets for further site assessment at Lund North will facilitate the development of a local-scale PFA and geothermal conceptual model. This new data will be used to site successive thermal gradient drilling to verify heat flow with temperatures at depth at the Lund North site and further investigate the existence of a local geothermal system.
","largerWorkTitle":"Proceedings, 50th workshop on geothermal reservoir engineering","conferenceTitle":"50th Workshop on Geothermal Reservoir Engineering","conferenceDate":"February 10-12, 2025","conferenceLocation":"Stanford, CA","language":"English","publisher":"Stanford University","usgsCitation":"Hardwick, C.L., Szymanski, E., Hart-Wagoner, N.R., Ashton, S., Christensen, N., Earney, T.E., Faulds, J.E., Glen, J.M., Hiscock, A., Kirby, S., Knudsen, T., Kobe, S., Lindsey, C.R., Morbeck, B., Peacock, J., Rea-Downing, G.H., Schermerhorn, W.D., and Smith, K., 2025, Exploration for blind geothermal systems in the eastern Great Basin of Utah: An update on the “Lund North” INGENIOUS detailed study site, in Proceedings, 50th workshop on geothermal reservoir engineering, v. 50, Stanford, CA, February 10-12, 2025, 14 p.","productDescription":"14 p.","ipdsId":"IP-174820","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":495306,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":495303,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://pangea.stanford.edu/ERE/db/IGAstandard/record_detail.php?id=38028","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Utah","county":"Iron County","otherGeospatial":"Lund North","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -113.25,\n 38.1667\n ],\n [\n -113.533,\n 38.1667\n ],\n [\n -113.533,\n 37.8333\n ],\n [\n -113.25,\n 37.8333\n ],\n [\n -113.25,\n 38.1667\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"50","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Hardwick, Christian L.","contributorId":361201,"corporation":false,"usgs":false,"family":"Hardwick","given":"Christian","middleInitial":"L.","affiliations":[{"id":17626,"text":"Utah Geological Survey","active":true,"usgs":false}],"preferred":false,"id":948370,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Szymanski, Eugene","contributorId":361203,"corporation":false,"usgs":false,"family":"Szymanski","given":"Eugene","affiliations":[{"id":17626,"text":"Utah Geological Survey","active":true,"usgs":false}],"preferred":false,"id":948371,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hart-Wagoner, Nicole R. 0000-0002-2018-8560","orcid":"https://orcid.org/0000-0002-2018-8560","contributorId":361206,"corporation":false,"usgs":false,"family":"Hart-Wagoner","given":"Nicole","middleInitial":"R.","affiliations":[{"id":16686,"text":"University of Nevada, Reno","active":true,"usgs":false}],"preferred":false,"id":948372,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ashton, S.","contributorId":361209,"corporation":false,"usgs":false,"family":"Ashton","given":"S.","affiliations":[{"id":17626,"text":"Utah Geological Survey","active":true,"usgs":false}],"preferred":false,"id":948373,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Christensen, N.","contributorId":361211,"corporation":false,"usgs":false,"family":"Christensen","given":"N.","affiliations":[],"preferred":false,"id":948374,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Earney, Tait E. 0000-0002-1504-0457","orcid":"https://orcid.org/0000-0002-1504-0457","contributorId":210080,"corporation":false,"usgs":true,"family":"Earney","given":"Tait","email":"","middleInitial":"E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":948375,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Faulds, James E.","contributorId":361214,"corporation":false,"usgs":false,"family":"Faulds","given":"James","middleInitial":"E.","affiliations":[{"id":16686,"text":"University of Nevada, Reno","active":true,"usgs":false}],"preferred":false,"id":948376,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Glen, Jonathan M.G. 0000-0002-3502-3355 jglen@usgs.gov","orcid":"https://orcid.org/0000-0002-3502-3355","contributorId":176530,"corporation":false,"usgs":true,"family":"Glen","given":"Jonathan","email":"jglen@usgs.gov","middleInitial":"M.G.","affiliations":[{"id":309,"text":"Geology and Geophysics Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":948377,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Hiscock, A.I.","contributorId":197763,"corporation":false,"usgs":false,"family":"Hiscock","given":"A.I.","email":"","affiliations":[],"preferred":false,"id":948378,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Kirby, Stefan","contributorId":345036,"corporation":false,"usgs":false,"family":"Kirby","given":"Stefan","affiliations":[{"id":17626,"text":"Utah Geological Survey","active":true,"usgs":false}],"preferred":false,"id":948379,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Knudsen, T.","contributorId":361219,"corporation":false,"usgs":false,"family":"Knudsen","given":"T.","affiliations":[{"id":17626,"text":"Utah Geological Survey","active":true,"usgs":false}],"preferred":false,"id":948380,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Kobe, S.","contributorId":361221,"corporation":false,"usgs":false,"family":"Kobe","given":"S.","affiliations":[{"id":17626,"text":"Utah Geological Survey","active":true,"usgs":false}],"preferred":false,"id":948381,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Lindsey, Cary R. 0000-0001-5693-9664","orcid":"https://orcid.org/0000-0001-5693-9664","contributorId":333436,"corporation":false,"usgs":false,"family":"Lindsey","given":"Cary","email":"","middleInitial":"R.","affiliations":[{"id":79883,"text":"USGS for this work (just joined GBCGE at UNR)","active":true,"usgs":false}],"preferred":false,"id":948382,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Morbeck, Benjamin Lyter 0009-0000-6043-0481","orcid":"https://orcid.org/0009-0000-6043-0481","contributorId":335638,"corporation":false,"usgs":true,"family":"Morbeck","given":"Benjamin Lyter","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":948383,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Peacock, Jared R. 0000-0002-0439-0224","orcid":"https://orcid.org/0000-0002-0439-0224","contributorId":210082,"corporation":false,"usgs":true,"family":"Peacock","given":"Jared R.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":948384,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Rea-Downing, Grant Harold 0000-0002-8567-683X","orcid":"https://orcid.org/0000-0002-8567-683X","contributorId":333087,"corporation":false,"usgs":true,"family":"Rea-Downing","given":"Grant","email":"","middleInitial":"Harold","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":948385,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Schermerhorn, William D. 0000-0002-0167-378X","orcid":"https://orcid.org/0000-0002-0167-378X","contributorId":210081,"corporation":false,"usgs":true,"family":"Schermerhorn","given":"William","email":"","middleInitial":"D.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":948386,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Smith, K.","contributorId":100578,"corporation":false,"usgs":true,"family":"Smith","given":"K.","affiliations":[],"preferred":false,"id":948387,"contributorType":{"id":1,"text":"Authors"},"rank":18}]}} ,{"id":70262010,"text":"70262010 - 2025 - Molluscan isotope sclerochronology in marine palaeoclimatology: Taxa, technique and timespan issues","interactions":[],"lastModifiedDate":"2025-01-10T15:47:05.625225","indexId":"70262010","displayToPublicDate":"2025-02-15T08:40:07","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3219,"text":"Quaternary Science Reviews","active":true,"publicationSubtype":{"id":10}},"title":"Molluscan isotope sclerochronology in marine palaeoclimatology: Taxa, technique and timespan issues","docAbstract":"Study of the accretionary biomineralised hardparts of organisms (sclerochronology) can make a useful contribution to palaeoclimatology. Ontogenetic sequences of isotopic data (δ18O and Δ47 values) from the shells of marine molluscs are a source of information on seasonal sea-surface temperatures that can be used for detailed and rigorous evaluation of the outputs of numerical climate models. In situations where there is significant seasonality, and where shell preservation is adequate, accurate information about winter and summer surface temperature can be obtained from shallow-water benthic forms (bivalves and gastropods), in particular the early ontogeny of fast-growing species. Accurate information about winter surface temperature can also be obtained from individuals that lived at mid-shelf depths (20–40 m), but summer seafloor values from these need upward adjustment to derive a plausible surface temperature if thermal stratification of the water column occurs in this season. Ontogenetic δ18O profiles from planktonic pteropod gastropods are a potential source of insight into seasonal surface temperatures in the ocean basins; these organisms merit investigation for provision of information to complement shelf data.
Temperature profiles constructed from shell δ18O require an estimate of the δ18O value of ambient seawater, which can be derived by back-calculation from the Δ47-temperature supplied by the same shell material. Alternatively, through appropriate sampling and data processing, seasonal temperatures can be obtained directly from Δ47 profiles. Climate parameters are defined in terms of the mean state over a period of 30 consecutive years, a statistic (e.g., for seasonal temperatures) which can be derived from the long isotopic temperature records obtainable from bivalve species that live for many tens or hundreds of years. Efforts should be made to acquire such records, especially averaged data from crossdated shells, to specify climate parameters for precise times in the past. Information for precise times would be of particular value for icehouse intervals like the late Cenozoic, characterised by high frequency (high amplitude) climate fluctuation. Short records from non-crossdated shells can nevertheless provide useful insights into climate, particularly if a large dataset is obtained, supplying a reliable picture of the mean state and range of variation in climate parameters over the interval represented by the shells.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.quascirev.2024.109068","usgsCitation":"Johnson, A., Schone, B., Petersen, S.V., de Winter, N., Dowsett, H., Cudennec, J., Harper, E., and Winkelstern, I., 2025, Molluscan isotope sclerochronology in marine palaeoclimatology: Taxa, technique and timespan issues: Quaternary Science Reviews, v. 350, 109068, 21 p., https://doi.org/10.1016/j.quascirev.2024.109068.","productDescription":"109068, 21 p.","ipdsId":"IP-166743","costCenters":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"links":[{"id":487335,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.quascirev.2024.109068","text":"Publisher Index Page"},{"id":465989,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Belgium, Italy, Netherlands, United Kingdom, United States","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-61.2,-51.85],[-60,-51.25],[-59.15,-51.5],[-58.55,-51.1],[-57.75,-51.55],[-58.05,-51.9],[-59.4,-52.2],[-59.85,-51.85],[-60.7,-52.3],[-61.2,-51.85]]],[[[-5.66195,54.5546],[-6.19788,53.86757],[-6.95373,54.0737],[-7.57217,54.05996],[-7.36603,54.59584],[-7.57217,55.13162],[-6.73385,55.17286],[-5.66195,54.5546]]],[[[-3.005,58.635],[-4.07383,57.55302],[-3.055,57.69002],[-1.95928,57.6848],[-2.21999,56.87002],[-3.119,55.97379],[-2.08501,55.91],[-2.00568,55.8049],[-1.11499,54.62499],[-0.43048,54.46438],[0.18498,53.32501],[0.46998,52.93],[1.68153,52.73952],[1.55999,52.1],[1.05056,51.80676],[1.44987,51.28943],[0.55033,50.76574],[-0.78752,50.77499],[-2.49,50.50002],[-2.95627,50.69688],[-3.61745,50.22836],[-4.54251,50.34184],[-5.24502,49.96],[-5.77657,50.15968],[-4.30999,51.21],[-3.41485,51.42601],[-3.42272,51.42685],[-4.98437,51.59347],[-5.2673,51.9914],[-4.22235,52.30136],[-4.77001,52.84],[-4.58,53.495],[-3.09383,53.40455],[-3.09208,53.40444],[-2.94501,53.985],[-3.6147,54.60094],[-3.63001,54.61501],[-4.84417,54.79097],[-5.08253,55.0616],[-4.71911,55.50847],[-5.04798,55.78399],[-5.5864,55.31115],[-5.645,56.27501],[-6.14998,56.78501],[-5.78682,57.81885],[-5.01,58.63001],[-4.21149,58.55085],[-3.005,58.635]]],[[[-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]]],[[[3.31497,51.34578],[3.3150012268149136,51.34577665082706],[3.83029,51.62054],[4.706,53.0918],[6.07418,53.5104],[6.90514,53.48216],[7.09205,53.14404],[6.84287,52.22844],[6.5894,51.85203],[5.98866,51.85162],[6.15666,50.80372],[6.04307,50.12805],[5.78242,50.09033],[5.67405,49.52948],[4.79922,49.98537],[4.28602,49.9075],[3.58818,50.37899],[3.12325,50.78036],[2.65842,50.79685],[2.51357,51.14851],[3.31497,51.34578]]],[[[15.52038,38.23116],[15.16024,37.44405],[15.3099,37.13422],[15.09999,36.61999],[14.33523,36.99663],[13.82673,37.10453],[12.431,37.61295],[12.57094,38.12638],[13.74116,38.03497],[14.76125,38.14387],[15.52038,38.23116]]],[[[9.21001,41.20999],[9.80998,40.50001],[9.66952,39.17738],[9.21482,39.24047],[8.80694,38.90662],[8.4283,39.17185],[8.38825,40.37831],[8.16,40.95001],[8.70999,40.89998],[9.21001,41.20999]]],[[[12.37649,46.76756],[13.80648,46.50931],[13.69811,46.01678],[13.93763,45.59102],[13.14161,45.73669],[12.32858,45.38178],[12.38387,44.88537],[12.26145,44.60048],[12.58924,44.09137],[13.52691,43.58773],[14.02982,42.76101],[15.14257,41.95514],[15.92619,41.96132],[16.1699,41.74029],[15.88935,41.54108],[16.785,41.17961],[17.51917,40.87714],[18.37669,40.35562],[18.48025,40.16887],[18.29339,39.81077],[17.73838,40.27767],[16.8696,40.44223],[16.44874,39.7954],[17.17149,39.4247],[17.05284,38.90287],[16.63509,38.84357],[16.10096,37.9859],[15.68409,37.90885],[15.68796,38.21459],[15.89198,38.75094],[16.10933,38.96455],[15.71881,39.54407],[15.41361,40.04836],[14.9985,40.17295],[14.70327,40.60455],[14.06067,40.78635],[13.62799,41.18829],[12.88808,41.25309],[12.10668,41.70453],[11.19191,42.35543],[10.51195,42.93146],[10.20003,43.92001],[9.70249,44.03628],[8.88895,44.36634],[8.42856,44.23123],[7.85077,43.76715],[7.43518,43.69384],[7.5496,44.1279],[7.00756,44.25477],[6.74996,45.02852],[7.09665,45.3331],[6.80236,45.70858],[6.84359,45.99115],[7.27385,45.77695],[7.75599,45.82449],[8.31663,46.16364],[8.48995,46.00515],[8.96631,46.03693],[9.18288,46.44021],[9.92284,46.3149],[10.36338,46.48357],[10.4427,46.89355],[11.04856,46.75136],[11.16483,46.94158],[12.15309,47.11539],[12.37649,46.76756]]]]},\"properties\":{\"name\":\"United Kingdom\"}}]}","volume":"350","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Johnson, Andrew 0000-0003-0027-8056","orcid":"https://orcid.org/0000-0003-0027-8056","contributorId":328481,"corporation":false,"usgs":false,"family":"Johnson","given":"Andrew","affiliations":[{"id":78376,"text":"Maine Department of Environmental Quality","active":true,"usgs":false}],"preferred":false,"id":922681,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schone, Bernd","contributorId":347861,"corporation":false,"usgs":false,"family":"Schone","given":"Bernd","affiliations":[{"id":83265,"text":"University of Mainz","active":true,"usgs":false}],"preferred":false,"id":922682,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Petersen, Sierra V.","contributorId":201014,"corporation":false,"usgs":false,"family":"Petersen","given":"Sierra","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":922683,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"de Winter, Niels","contributorId":219448,"corporation":false,"usgs":false,"family":"de Winter","given":"Niels","email":"","affiliations":[],"preferred":false,"id":922684,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dowsett, Harry J. 0000-0003-1983-7524","orcid":"https://orcid.org/0000-0003-1983-7524","contributorId":261665,"corporation":false,"usgs":true,"family":"Dowsett","given":"Harry J.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":922685,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Cudennec, Jean-Francois","contributorId":347862,"corporation":false,"usgs":false,"family":"Cudennec","given":"Jean-Francois","affiliations":[{"id":83266,"text":"University of Derby","active":true,"usgs":false}],"preferred":false,"id":922686,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Harper, Elizabeth","contributorId":347863,"corporation":false,"usgs":false,"family":"Harper","given":"Elizabeth","affiliations":[{"id":27136,"text":"University of Cambridge","active":true,"usgs":false}],"preferred":false,"id":922687,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Winkelstern, Ian","contributorId":347864,"corporation":false,"usgs":false,"family":"Winkelstern","given":"Ian","affiliations":[{"id":15305,"text":"Grand Valley State University","active":true,"usgs":false}],"preferred":false,"id":922688,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70263596,"text":"sir20245112 - 2025 - Water-budget analysis of the Medina and Diversion Lake system, with estimated recharge to the Edwards aquifer and the upper zone of the Trinity aquifer, Bandera, Bexar, and Medina Counties, Texas, 1955–2022","interactions":[],"lastModifiedDate":"2025-03-13T20:01:46.08562","indexId":"sir20245112","displayToPublicDate":"2025-02-14T16:25:56","publicationYear":"2025","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2024-5112","displayTitle":"Water-Budget Analysis of the Medina and Diversion Lake System, With Estimated Recharge to the Edwards Aquifer and the Upper Zone of the Trinity Aquifer, Bandera, Bexar, and Medina Counties, Texas, 1955–2022","title":"Water-budget analysis of the Medina and Diversion Lake system, with estimated recharge to the Edwards aquifer and the upper zone of the Trinity aquifer, Bandera, Bexar, and Medina Counties, Texas, 1955–2022","docAbstract":"The U.S. Geological Survey—in cooperation with the San Antonio Water System and the Edwards Aquifer Authority—used data collected during four different periods (March 1955–August 1964, October 1995–September 1996, March 2001–June 2002, and March 2017–October 2022) as part of a new study to refine previously derived relations between the altitude of the water surface of Medina Lake and recharge to the Edwards aquifer and the upper zone of the Trinity aquifer in the form of seepage losses from Medina Lake and the immediately downstream Diversion Lake. Any seepage losses that occur within the conservation pools of Medina and Diversion Lakes infiltrate the Edwards aquifer and the upper zone of the Trinity aquifer as recharge. To quantify recharge to the Edwards aquifer and the upper zone of the Trinity aquifer from Medina and Diversion Lakes, daily water budgets were used to calculate monthly and annual recharge (method 1). A new statistical analysis culminated in a new log-log weighted least-squares (WLS) regression equation that relates recharge from Medina and Diversion Lakes to the Medina Lake stage. Recharge estimates obtained by using the new log-log WLS regression equation (method 2), as well as the recharge estimated by using a method published in 1978 (referred to as the “Puente method”) (method 3), were compared with the calculated recharge during March 2017–September 2022. During March 2017–September 2022, the WLS estimated recharge was 224,310 acre-feet, 0.5 percent less than the calculated recharge of 225,400 acre-feet. The Puente method estimated recharge was 342,080 acre-feet, about 52 percent more than the calculated recharge. The analysis of the three methods indicates that WLS estimated recharge provides a more accurate accounting of actual recharge to the Edwards aquifer and the upper zone of the Trinity aquifer compared to the Puente method.
Director, Oklahoma-Texas Water Science Center
U.S. Geological Survey
1505 Ferguson Lane
Austin, TX 78754–4501
Contact Us- USGS Publications Warehouse
","tableOfContents":"Urban expansion is a prominent threat to biodiversity, particularly for terrestrial mammals, which are significantly impacted by disruptions in habitat connectivity and loss. It can also lead to increased human‑wildlife conflicts that contribute to species decline. Urban public works projects, such as flood control areas, may coincidentally preserve significant habitat, but their potential for conservation remains understudied. Hansen Dam, located in the city of Los Angeles, California, USA, is one of these flood control areas, hosting some of the last remaining riparian habitat in the greater Los Angeles area. We deployed motion‑triggered camera traps at 36 stratified random locations and completed small mammal trapping at 20 sites at Hansen Dam. We detected a total of 15 species, not including domesticated animals, but there is potential that additional species inhabit the area. All species detected were common and expected but demonstrate that the Hansen Dam flood control basin has a terrestrial mammal community similar to that reported for other urban habitats. These results suggest incidental habitat conservation could play a significant role in future conservation planning efforts.
","language":"English","publisher":"Pensoft","doi":"10.15560/21.1.198","usgsCitation":"Privett-Mendoza, A., Oganesyan, S., Fisher, R., Hitchcock, C.J., Clark, D., and Zellmer, A., 2025, Terrestrial mammal diversity at Hansen Dam (Los Angeles, California, USA): Flood control area acts as habitat in a human-dominated landscape: Check List: The Journal of Biodiversity Data, v. 21, no. 1, p. 198-215, https://doi.org/10.15560/21.1.198.","productDescription":"18 p.","startPage":"198","endPage":"215","ipdsId":"IP-163743","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":487696,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.15560/21.1.198","text":"Publisher Index Page"},{"id":482501,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","city":"Los Angeles","otherGeospatial":"Hansen Dam","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -118.395,\n 34.28\n ],\n [\n -118.395,\n 34.255\n ],\n [\n -118.355,\n 34.255\n ],\n [\n -118.355,\n 34.28\n ],\n [\n -118.395,\n 34.28\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"21","issue":"1","noUsgsAuthors":false,"publicationDate":"2025-02-14","publicationStatus":"PW","contributors":{"authors":[{"text":"Privett-Mendoza, Auxenia G.","contributorId":351493,"corporation":false,"usgs":false,"family":"Privett-Mendoza","given":"Auxenia G.","affiliations":[{"id":83998,"text":"Occidental College; Arroyos & Foothills Conservancy","active":true,"usgs":false}],"preferred":false,"id":928688,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Oganesyan, Stella","contributorId":351494,"corporation":false,"usgs":false,"family":"Oganesyan","given":"Stella","affiliations":[{"id":83999,"text":"Arroyos & Foothills Conservancy","active":true,"usgs":false}],"preferred":false,"id":928689,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fisher, Robert N. 0000-0002-2956-3240","orcid":"https://orcid.org/0000-0002-2956-3240","contributorId":51675,"corporation":false,"usgs":true,"family":"Fisher","given":"Robert N.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":928690,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hitchcock, Cynthia Joan 0000-0001-9293-043X","orcid":"https://orcid.org/0000-0001-9293-043X","contributorId":225261,"corporation":false,"usgs":true,"family":"Hitchcock","given":"Cynthia","email":"","middleInitial":"Joan","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":928691,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Clark, Denise 0000-0002-9688-2946 drclark@usgs.gov","orcid":"https://orcid.org/0000-0002-9688-2946","contributorId":213957,"corporation":false,"usgs":true,"family":"Clark","given":"Denise","email":"drclark@usgs.gov","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":928692,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Zellmer, Amanda J.","contributorId":351495,"corporation":false,"usgs":false,"family":"Zellmer","given":"Amanda J.","affiliations":[{"id":83998,"text":"Occidental College; Arroyos & Foothills Conservancy","active":true,"usgs":false}],"preferred":false,"id":928693,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70263421,"text":"sim3533 - 2025 - Geologic map of the Buckner 7.5-Minute quadrangle, Louisa County, Virginia","interactions":[],"lastModifiedDate":"2025-07-21T18:23:25.833527","indexId":"sim3533","displayToPublicDate":"2025-02-14T10:20:00","publicationYear":"2025","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":333,"text":"Scientific Investigations Map","code":"SIM","onlineIssn":"2329-132X","printIssn":"2329-1311","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"3533","displayTitle":"Geologic Map of the Buckner 7.5-Minute Quadrangle, Louisa County, Virginia","title":"Geologic map of the Buckner 7.5-Minute quadrangle, Louisa County, Virginia","docAbstract":"The Buckner 7.5-minute quadrangle straddles three terrane boundaries in the Piedmont Physiographic Province in central Virginia: the Chopawamsic terrane, the Elk Hill Complex, and the Goochland terrane. In much of the map area, the Elk Hill Complex separates the Chopawamsic and Goochland terranes. Rocks of the Chopawamsic terrane include Ordovician metavolcanic and metasedimentary rocks of the Chopawamsic Formation, Ordovician to Silurian granodiorite sheet intrusions, and Paleozoic mafic intrusions. Silurian to Devonian rocks of the Quantico Formation, mostly garnet-mica schist, crop out in the northwesternmost part of the map area, and are in unconformable contact with rocks of the Chopawamsic Formation on the southeastern limb of the Quantico synclinorium. The main map unit in the Elk Hill Complex is Neoproterozoic mica gneiss, which is in pre-metamorphic fault contact with rocks of the Chopawamsic Formation to the west. The main map unit of the Goochland terrane is the Maidens Gneiss. Except for Jurassic diabase dikes, all rocks on the Buckner 7.5-minute quadrangle were metamorphosed to amphibolite facies during the Alleghanian orogeny and preserve multiple compositional and phyllosilicate penetrative foliations. Evidence of amphibolite-facies metamorphism during the Taconic orogeny is preserved in rocks of the Elk Hill Complex. The entire width of the Maidens Gneiss on the Buckner 7.5-minute quadrangle is within the Spotsylvania high-strain zone and amphibolite-facies mylonitic textures are pervasive. Quartz veins and Jurassic diabase dikes crosscut all older rocks of the quadrangle.
Multiple levels of terrace deposits are present along and near the major streams of the quadrangle. The lower terrace deposits are likely remnants of former positions of the Little River on the landscape, whereas higher deposits may be remnants of former deposits of the Atlantic Coastal Plain that covered this portion of the Piedmont Province. A linear cluster of aftershocks from the magnitude 5.8 earthquake that occurred near Mineral, Virginia, in 2011 defines the Fredericks Hall fault, which is at depth on the Buckner quadrangle. Most of the aftershocks occurred in the core of the Elk Creek antiform and have no relation to faults mapped at the surface. Several abandoned crushed stone and building stone quarries, as well as a mica prospect, exist in the quadrangle.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sim3533","collaboration":"Prepared in cooperation with the Virginia Department of Energy, Geology and Mineral Resources Program","usgsCitation":"Carter, M.W., Spears, D.B., Latane, V.M., Crider, E.A., Weinmann, B.R., Mangum, H., McAleer, R.J., Horton, J.W., Jr., Shah, A.K., and Regan, S.P., 2025, Geologic map of the Buckner 7.5-minute quadrangle, Louisa County, Virginia: U.S. Geological Survey Scientific Investigations Map 3533, 1 sheet, scale 1:24,000, 37-p. pamphlet, https://doi.org/10.3133/sim3533.","productDescription":"Pamphlet: vii, 37 p.; 1 Sheet: 48.32 x 41.31 inches; 2 Data Releases","numberOfPages":"37","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-125408","costCenters":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"links":[{"id":481855,"rank":5,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P9HC25RR","text":"USGS data release","linkHelpText":"238U/206Pb SHRIMP, 40Ar/39Ar geochronologic, and geochemical data from the central Virginia Piedmont"},{"id":492692,"rank":7,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_118426.htm","linkFileType":{"id":5,"text":"html"}},{"id":481856,"rank":6,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P9OE8CKX","text":"USGS data release","linkHelpText":"Geodatabase for the geologic map of the Buckner 7.5-minute quadrangle, Louisa County, Virginia"},{"id":481850,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sim/3533/sim3533.pdf","text":"Pamphlet","size":"26.0 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIM 3533 Pamphlet PDF"},{"id":481849,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sim/3533/coverthb.jpg"},{"id":481854,"rank":4,"type":{"id":26,"text":"Sheet"},"url":"https://pubs.usgs.gov/sim/3533/sim3533_sheet.pdf","text":"Sheet","size":"36.9 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIM 3533 Sheet PDF"},{"id":481853,"rank":3,"type":{"id":34,"text":"Image Folder"},"url":"https://pubs.usgs.gov/sim/3533/images/"}],"country":"United States","state":"Virginia","county":"Louisa County","otherGeospatial":"Buckner 7.5' quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -77.875,\n 38\n ],\n [\n -77.875,\n 37.875\n ],\n [\n -77.75,\n 37.875\n ],\n [\n -77.75,\n 38\n ],\n [\n -77.875,\n 38\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","contact":"Director, Florence Bascom Geoscience Center
U.S. Geological Survey
12201 Sunrise Valley Drive
Reston, VA 20192
Across the United States, rural residents rely on unregulated and generally unmonitored private wells for drinking water, which may pose serious health risks due to unrecognized contaminants. We assessed the nature, degree, and spatial distribution of cumulative health risks from inorganic contaminants in groundwater. Our analysis included nearly 84,000 data points from 6500+ wells, across 51 of Montana's 98 watersheds, using a public groundwater database. We compared a drinking water screening level cumulative risk assessment (CRA) for inorganics based on the U.S. Environmental Protection Agency (EPA) protective health thresholds (Maximum Contaminant Level Goals, Health Advisories [MCLG-HAs]) to a CRA based on EPA public supply enforceable Maximum Contaminant Levels (MCLs). Based on median concentrations of 19 inorganics (antimony, arsenic, barium, beryllium, boron, cadmium, chromium, copper, fluoride, manganese, molybdenum, nickel, nitrate, lead, selenium, strontium, thallium, uranium, zinc), 75% of watersheds had MCLG-HA-based cumulative risk values > 1.0; arsenic and uranium contributed the most risk, followed by strontium, fluoride, manganese and boron. Hence, this screening level (Tier I) CRA indicated widespread potential for unrecognized human health risk to private well users from inorganic contaminants considering both carcinogenic and non-carcinogenic risks. Sensitivity analysis showed that benchmarks applied (MCLG-HAs versus MCLs) exerted the largest control on results. Our findings identify priority regions for Tier 2 risk assessments to elucidate local sources and distributions of geogenic versus anthropomorphic contaminants. Our study is the first statewide assessment of cumulative health risk from groundwater that we are aware of, and results support increased statewide drinking water education and testing to reduce human health risks from contaminated private well water.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.envpol.2025.125810","usgsCitation":"Eggers, M., Sigler, W., Kiekover, N., Bradley, P., Smalling, K., Parker, A., Peterson, R., and LaFave, J., 2025, Statewide cumulative human health risk assessment of inorganics-contaminated groundwater wells, Montana, USA: Environmental Pollution, v. 369, 125810, 17 p., https://doi.org/10.1016/j.envpol.2025.125810.","productDescription":"125810, 17 p.","ipdsId":"IP-167347","costCenters":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true},{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":489772,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.envpol.2025.125810","text":"Publisher Index Page"},{"id":482274,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Montana","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-105.038405,45.000345],[-105.848065,45.000396],[-105.913382,45.000941],[-105.914258,44.999986],[-105.928184,44.993647],[-106.263586,44.993788],[-107.050801,44.996424],[-107.074996,44.997004],[-107.084939,44.996599],[-107.105685,44.998734],[-107.125633,44.999388],[-107.13418,45.000109],[-107.351441,45.001407],[-107.49205,45.00148],[-107.608854,45.00086],[-107.750654,45.000778],[-107.997353,45.001565],[-108.000663,45.001223],[-108.14939,45.001062],[-108.218479,45.000541],[-108.238139,45.000206],[-108.249345,44.999458],[-108.271201,45.000251],[-108.500679,44.999691],[-108.565921,45.000578],[-109.08301,44.99961],[-109.103445,45.005904],[-109.375713,45.00461],[-109.386432,45.004887],[-109.574321,45.002631],[-109.663673,45.002536],[-109.75073,45.001605],[-109.875735,45.003275],[-109.99505,45.003174],[-110.026347,45.003665],[-110.110103,45.003905],[-110.199503,44.996188],[-110.28677,44.99685],[-110.324441,44.999156],[-110.342131,44.999053],[-110.362698,45.000593],[-110.402927,44.99381],[-110.48807,44.992361],[-110.552433,44.992237],[-110.705272,44.992324],[-110.750767,44.997948],[-110.761554,44.999934],[-110.785008,45.002952],[-111.055199,45.001321],[-111.056207,44.935901],[-111.055629,44.933578],[-111.056888,44.866658],[-111.056416,44.749928],[-111.055511,44.725343],[-111.055208,44.624927],[-111.048974,44.474072],[-111.062729,44.476073],[-111.122654,44.493659],[-111.131379,44.499925],[-111.139455,44.517112],[-111.143557,44.535732],[-111.15959,44.546376],[-111.166892,44.54722],[-111.175747,44.552219],[-111.182551,44.566874],[-111.189617,44.571062],[-111.201459,44.575696],[-111.225208,44.581006],[-111.23018,44.587025],[-111.231227,44.606915],[-111.224161,44.623402],[-111.25268,44.651092],[-111.262839,44.649658],[-111.276956,44.655626],[-111.26875,44.668279],[-111.29626,44.702271],[-111.323669,44.724474],[-111.341351,44.7293],[-111.348184,44.725459],[-111.355768,44.727602],[-111.366723,44.738361],[-111.36627,44.742234],[-111.37476,44.750295],[-111.385005,44.755128],[-111.393854,44.752549],[-111.397805,44.746738],[-111.394459,44.744578],[-111.398575,44.723343],[-111.414271,44.710741],[-111.424214,44.714024],[-111.429604,44.720149],[-111.438793,44.720546],[-111.486019,44.707654],[-111.489339,44.704946],[-111.490228,44.700221],[-111.484898,44.687578],[-111.47798,44.682393],[-111.468833,44.679335],[-111.473178,44.665479],[-111.50494,44.635746],[-111.521688,44.613371],[-111.525764,44.604883],[-111.524213,44.595585],[-111.519126,44.582916],[-111.492024,44.56081],[-111.469185,44.552044],[-111.467736,44.544521],[-111.471682,44.540824],[-111.500792,44.540062],[-111.518095,44.544177],[-111.524006,44.548385],[-111.546637,44.557099],[-111.556577,44.554495],[-111.562814,44.555209],[-111.585763,44.562843],[-111.591768,44.561502],[-111.601249,44.55421],[-111.614405,44.548991],[-111.681571,44.559864],[-111.704218,44.560205],[-111.709553,44.550206],[-111.715474,44.543543],[-111.737191,44.54306],[-111.746401,44.540766],[-111.758966,44.533766],[-111.761904,44.529841],[-111.806512,44.516264],[-111.807914,44.511716],[-111.821488,44.509286],[-111.842542,44.526069],[-111.849293,44.539837],[-111.870504,44.564033],[-111.887852,44.563413],[-111.903566,44.55723],[-111.947941,44.556776],[-111.951522,44.550062],[-111.980833,44.536682],[-111.995231,44.535444],[-112.01385,44.542348],[-112.032707,44.546642],[-112.035025,44.542691],[-112.034133,44.537716],[-112.036943,44.530323],[-112.053434,44.535089],[-112.069011,44.537104],[-112.093304,44.530002],[-112.096299,44.523212],[-112.101564,44.520847],[-112.106755,44.520829],[-112.125101,44.528527],[-112.129078,44.5363],[-112.136454,44.539911],[-112.164597,44.541666],[-112.179703,44.533021],[-112.183937,44.533067],[-112.221698,44.543519],[-112.229477,44.549494],[-112.226841,44.555239],[-112.230117,44.562759],[-112.242785,44.568091],[-112.258665,44.569516],[-112.286187,44.568472],[-112.307642,44.557651],[-112.312899,44.553536],[-112.315047,44.550049],[-112.315008,44.5419],[-112.319198,44.53911],[-112.348794,44.538691],[-112.35421,44.535638],[-112.358917,44.528847],[-112.3566,44.493127],[-112.358926,44.48628],[-112.368764,44.467153],[-112.387389,44.448058],[-112.435342,44.462216],[-112.460347,44.47571],[-112.473207,44.480027],[-112.50031,44.463051],[-112.511713,44.466445],[-112.512036,44.47042],[-112.518871,44.475784],[-112.541989,44.483971],[-112.550557,44.484928],[-112.573513,44.480983],[-112.584197,44.481368],[-112.601863,44.491015],[-112.660696,44.485756],[-112.664485,44.48645],[-112.671169,44.491265],[-112.707815,44.503023],[-112.71911,44.504344],[-112.735084,44.499159],[-112.749011,44.491233],[-112.781294,44.484888],[-112.797863,44.466112],[-112.828191,44.442472],[-112.836034,44.422653],[-112.821896,44.407436],[-112.812608,44.392275],[-112.81324,44.378103],[-112.820489,44.370946],[-112.844859,44.358221],[-112.855395,44.359975],[-112.881769,44.380315],[-112.886041,44.395874],[-112.915602,44.402699],[-112.951146,44.416699],[-112.981682,44.434279],[-113.003544,44.450814],[-113.020917,44.493827],[-113.018636,44.520064],[-113.019777,44.528505],[-113.032722,44.537137],[-113.04282,44.546757],[-113.042363,44.565237],[-113.061071,44.577329],[-113.083819,44.60222],[-113.07376,44.613928],[-113.065593,44.617391],[-113.05677,44.618657],[-113.053529,44.621187],[-113.049349,44.62938],[-113.051504,44.63695],[-113.065589,44.649371],[-113.068306,44.656374],[-113.07042,44.667844],[-113.067756,44.672807],[-113.06776,44.679474],[-113.081906,44.691392],[-113.098064,44.697477],[-113.101154,44.708578],[-113.102138,44.729027],[-113.116874,44.738104],[-113.134824,44.752763],[-113.137704,44.760109],[-113.131387,44.764738],[-113.131453,44.772837],[-113.140618,44.776698],[-113.158206,44.780847],[-113.163806,44.778921],[-113.179366,44.787142],[-113.183395,44.793565],[-113.19436,44.802151],[-113.209624,44.80907],[-113.238729,44.814144],[-113.247166,44.82295],[-113.278382,44.812706],[-113.29683,44.803358],[-113.301508,44.798985],[-113.341704,44.784853],[-113.354034,44.791745],[-113.354763,44.795468],[-113.346692,44.798898],[-113.3461,44.800611],[-113.356062,44.819798],[-113.377153,44.834858],[-113.383984,44.8374],[-113.422376,44.842595],[-113.455071,44.865424],[-113.474573,44.910846],[-113.491121,44.927548],[-113.498745,44.942314],[-113.494446,44.948597],[-113.480836,44.95031],[-113.474781,44.948795],[-113.467467,44.948061],[-113.448958,44.953544],[-113.443782,44.95989],[-113.444862,44.976141],[-113.447013,44.984637],[-113.446884,44.998545],[-113.437726,45.006967],[-113.449909,45.035167],[-113.44912,45.046098],[-113.45197,45.059247],[-113.460578,45.064879],[-113.465073,45.062755],[-113.47377,45.0617],[-113.485278,45.063519],[-113.520134,45.093033],[-113.510819,45.099902],[-113.506638,45.107288],[-113.513342,45.115225],[-113.538037,45.11503],[-113.546488,45.112285],[-113.554744,45.112901],[-113.57467,45.128411],[-113.594632,45.166034],[-113.589891,45.176986],[-113.599506,45.191114],[-113.636889,45.212983],[-113.647399,45.228282],[-113.650064,45.23471],[-113.657027,45.241436],[-113.665633,45.246265],[-113.674409,45.249411],[-113.678749,45.24927],[-113.684946,45.253706],[-113.692039,45.265191],[-113.691557,45.270912],[-113.688077,45.276407],[-113.689359,45.28355],[-113.735601,45.325265],[-113.738729,45.329741],[-113.7402,45.34559],[-113.73553,45.364738],[-113.73239,45.385058],[-113.733092,45.390173],[-113.734402,45.392353],[-113.750546,45.40272],[-113.760924,45.406501],[-113.765203,45.410601],[-113.768058,45.418147],[-113.763368,45.427732],[-113.764591,45.431403],[-113.783272,45.451839],[-113.78416,45.454946],[-113.759986,45.480735],[-113.766022,45.520621],[-113.778361,45.523415],[-113.796579,45.523462],[-113.802849,45.523159],[-113.809144,45.519908],[-113.834555,45.520729],[-113.819868,45.566326],[-113.804796,45.580358],[-113.803261,45.584193],[-113.802955,45.592631],[-113.806729,45.602146],[-113.823068,45.612486],[-113.861404,45.62366],[-113.886006,45.61702],[-113.904691,45.622007],[-113.902539,45.636945],[-113.898883,45.644167],[-113.900588,45.648259],[-113.903582,45.651165],[-113.919752,45.658536],[-113.930403,45.671878],[-113.93422,45.682232],[-113.971565,45.700636],[-113.986656,45.704564],[-114.015633,45.696127],[-114.019315,45.692937],[-114.020533,45.681223],[-114.02007,45.670332],[-114.013786,45.658238],[-114.014973,45.654008],[-114.018731,45.648616],[-114.033456,45.648629],[-114.067619,45.627706],[-114.08179,45.611329],[-114.083149,45.603996],[-114.0821,45.596958],[-114.086584,45.59118],[-114.100308,45.586354],[-114.122322,45.58426],[-114.131469,45.574444],[-114.132359,45.572531],[-114.128601,45.568996],[-114.129099,45.565491],[-114.135249,45.557465],[-114.154837,45.552916],[-114.180043,45.551432],[-114.18647,45.545539],[-114.192802,45.536596],[-114.203665,45.53557],[-114.227942,45.546423],[-114.248121,45.545877],[-114.251836,45.537812],[-114.248183,45.533226],[-114.247824,45.524283],[-114.261616,45.495816],[-114.270717,45.486116],[-114.279217,45.480616],[-114.333218,45.459316],[-114.345019,45.459916],[-114.360719,45.474116],[-114.36562,45.490416],[-114.36852,45.492716],[-114.388618,45.502903],[-114.415804,45.509753],[-114.438991,45.536076],[-114.450863,45.54253],[-114.456764,45.543983],[-114.460542,45.561283],[-114.473759,45.563278],[-114.498176,45.555473],[-114.506341,45.559216],[-114.517761,45.568129],[-114.526075,45.570771],[-114.549508,45.56059],[-114.559038,45.565706],[-114.558253,45.585104],[-114.553999,45.591279],[-114.538132,45.606834],[-114.544905,45.616673],[-114.553937,45.619299],[-114.563305,45.631612],[-114.563652,45.637412],[-114.561046,45.639906],[-114.53577,45.650613],[-114.529678,45.65232],[-114.522142,45.64934],[-114.507645,45.658949],[-114.499637,45.669035],[-114.495421,45.703321],[-114.497553,45.710677],[-114.504869,45.722176],[-114.535634,45.739095],[-114.566172,45.773864],[-114.562509,45.779927],[-114.555487,45.786249],[-114.544692,45.791447],[-114.512973,45.828825],[-114.51704,45.833148],[-114.517143,45.835993],[-114.514596,45.840785],[-114.509303,45.845531],[-114.498809,45.850676],[-114.470296,45.851343],[-114.455532,45.855012],[-114.44868,45.858891],[-114.422963,45.855381],[-114.409477,45.85164],[-114.388243,45.88234],[-114.387166,45.889164],[-114.395059,45.901458],[-114.404314,45.903497],[-114.413168,45.911479],[-114.431159,45.935737],[-114.431328,45.938023],[-114.427717,45.939625],[-114.423681,45.9441],[-114.415977,45.947891],[-114.411933,45.952358],[-114.404708,45.9559],[-114.402261,45.961489],[-114.403712,45.967049],[-114.409353,45.97141],[-114.411892,45.977883],[-114.419899,45.981106],[-114.425843,45.984984],[-114.470965,45.995742],[-114.47729,46.000802],[-114.477922,46.009025],[-114.473811,46.016614],[-114.480241,46.030325],[-114.485793,46.030022],[-114.490572,46.032427],[-114.493418,46.03717],[-114.494683,46.042546],[-114.492153,46.04729],[-114.468529,46.062484],[-114.461864,46.078571],[-114.460049,46.097104],[-114.474415,46.112515],[-114.488303,46.113106],[-114.5213,46.125287],[-114.527096,46.146218],[-114.514706,46.167726],[-114.489254,46.167684],[-114.478333,46.160876],[-114.472643,46.162202],[-114.457549,46.170231],[-114.445928,46.173933],[-114.443215,46.202943],[-114.445497,46.220227],[-114.449819,46.237119],[-114.451912,46.241253],[-114.468254,46.248796],[-114.470479,46.26732],[-114.465024,46.273127],[-114.453257,46.270939],[-114.441326,46.2738],[-114.43544,46.27661],[-114.427309,46.283624],[-114.425587,46.287899],[-114.433478,46.305502],[-114.431708,46.310744],[-114.413758,46.335945],[-114.410682,46.360673],[-114.411592,46.366688],[-114.422458,46.387097],[-114.408974,46.400438],[-114.384756,46.411784],[-114.376413,46.442983],[-114.379338,46.460166],[-114.383051,46.466402],[-114.394447,46.469549],[-114.400068,46.47718],[-114.403019,46.498675],[-114.400257,46.502143],[-114.395204,46.503148],[-114.385871,46.50437],[-114.375348,46.501855],[-114.35874,46.505306],[-114.351655,46.508119],[-114.342072,46.519679],[-114.349208,46.529514],[-114.348733,46.533792],[-114.34534,46.548444],[-114.339533,46.564039],[-114.33175,46.571914],[-114.331338,46.577781],[-114.333931,46.582732],[-114.334992,46.588154],[-114.333931,46.592162],[-114.322519,46.611066],[-114.322912,46.642938],[-114.320665,46.646963],[-114.32456,46.653579],[-114.332887,46.660756],[-114.360709,46.669059],[-114.394514,46.664846],[-114.403383,46.659633],[-114.410907,46.657466],[-114.424424,46.660648],[-114.453239,46.649266],[-114.45425,46.640974],[-114.466902,46.631695],[-114.486218,46.632829],[-114.498007,46.637655],[-114.547321,46.644485],[-114.561582,46.642043],[-114.583385,46.633227],[-114.593292,46.632848],[-114.615036,46.639733],[-114.616354,46.643646],[-114.611676,46.647704],[-114.614716,46.655256],[-114.621483,46.658143],[-114.635713,46.659375],[-114.642713,46.673145],[-114.641745,46.679286],[-114.631898,46.68397],[-114.623198,46.691511],[-114.620859,46.707415],[-114.626695,46.712889],[-114.632954,46.715495],[-114.649388,46.73289],[-114.696656,46.740572],[-114.699008,46.740223],[-114.710425,46.717704],[-114.713516,46.715138],[-114.727445,46.714604],[-114.740115,46.711771],[-114.747758,46.702649],[-114.749257,46.699688],[-114.751921,46.697207],[-114.76689,46.696901],[-114.787065,46.711255],[-114.788656,46.714033],[-114.779668,46.730411],[-114.773765,46.731805],[-114.76718,46.738828],[-114.765127,46.745383],[-114.765106,46.758153],[-114.79004,46.778729],[-114.808587,46.78235],[-114.818161,46.781139],[-114.829117,46.782503],[-114.835917,46.791111],[-114.844794,46.794305],[-114.856874,46.801633],[-114.860067,46.804988],[-114.861376,46.81196],[-114.864342,46.813858],[-114.880588,46.811791],[-114.888146,46.808573],[-114.897857,46.813184],[-114.904505,46.822851],[-114.920459,46.827697],[-114.927837,46.83599],[-114.92845,46.843242],[-114.92349,46.847594],[-114.928615,46.854815],[-114.940398,46.85605],[-114.947413,46.859324],[-114.943281,46.867971],[-114.938713,46.869021],[-114.931608,46.876799],[-114.931058,46.882108],[-114.936805,46.897378],[-114.935035,46.901749],[-114.927948,46.909948],[-114.927432,46.914185],[-114.929997,46.919625],[-114.960597,46.93001],[-114.986539,46.952099],[-115.00091,46.967703],[-115.001274,46.971901],[-115.028386,46.975659],[-115.028994,46.973159],[-115.031651,46.971548],[-115.047857,46.969533],[-115.049538,46.970774],[-115.057098,46.986758],[-115.066223,46.996375],[-115.071254,47.022083],[-115.087806,47.045519],[-115.098136,47.048897],[-115.102681,47.047239],[-115.107132,47.049041],[-115.120917,47.061237],[-115.136671,47.078276],[-115.139515,47.08456],[-115.140375,47.093013],[-115.170436,47.106265],[-115.172938,47.112881],[-115.189451,47.131032],[-115.200547,47.139154],[-115.223246,47.148974],[-115.243707,47.150347],[-115.255146,47.162876],[-115.255786,47.174725],[-115.261885,47.181742],[-115.286353,47.18327],[-115.300504,47.188139],[-115.300805,47.19393],[-115.295986,47.205658],[-115.29211,47.209861],[-115.294785,47.220914],[-115.298794,47.225245],[-115.307239,47.229892],[-115.311875,47.229673],[-115.317124,47.233305],[-115.324832,47.244841],[-115.326903,47.255912],[-115.339201,47.261623],[-115.3593,47.259461],[-115.36628,47.261485],[-115.371825,47.265213],[-115.410685,47.264228],[-115.421645,47.271736],[-115.423173,47.276222],[-115.428359,47.278722],[-115.443566,47.277309],[-115.457077,47.277794],[-115.470959,47.284873],[-115.487314,47.286518],[-115.51186,47.295219],[-115.526751,47.303219],[-115.531971,47.314121],[-115.548658,47.332213],[-115.551079,47.349856],[-115.556318,47.353076],[-115.564766,47.353476],[-115.570887,47.356375],[-115.578619,47.367007],[-115.609492,47.380799],[-115.617247,47.382521],[-115.639186,47.378605],[-115.644341,47.381826],[-115.648479,47.390293],[-115.657681,47.400651],[-115.69057,47.415059],[-115.71034,47.417784],[-115.718934,47.420967],[-115.72148,47.424469],[-115.728801,47.428925],[-115.731348,47.433381],[-115.728801,47.445159],[-115.718247,47.45316],[-115.69293,47.457237],[-115.671188,47.45439],[-115.663867,47.456936],[-115.654318,47.468077],[-115.653044,47.476035],[-115.655272,47.477944],[-115.686704,47.485596],[-115.694106,47.498634],[-115.708748,47.51264],[-115.71034,47.52951],[-115.717024,47.532693],[-115.741371,47.538645],[-115.747263,47.543197],[-115.748536,47.549245],[-115.746945,47.555293],[-115.734674,47.567401],[-115.721207,47.576323],[-115.706473,47.577299],[-115.689404,47.595402],[-115.694284,47.62346],[-115.708537,47.635356],[-115.715193,47.63634],[-115.72993,47.642442],[-115.73627,47.654762],[-115.726613,47.672093],[-115.72377,47.696671],[-115.730764,47.704426],[-115.752349,47.716743],[-115.758623,47.719041],[-115.763424,47.717313],[-115.77177,47.717412],[-115.776219,47.719818],[-115.783504,47.729305],[-115.780441,47.743447],[-115.797299,47.75752],[-115.803917,47.75848],[-115.824597,47.752154],[-115.831755,47.755785],[-115.835365,47.760957],[-115.835069,47.77006],[-115.837438,47.774846],[-115.84044,47.780172],[-115.847487,47.785227],[-115.848509,47.809331],[-115.845474,47.814967],[-115.852291,47.827991],[-115.870861,47.834939],[-115.875262,47.843272],[-115.881522,47.849672],[-115.900934,47.843064],[-115.906409,47.846261],[-115.919291,47.857406],[-115.939993,47.883153],[-115.959946,47.898142],[-115.965153,47.910131],[-115.969076,47.914256],[-115.982791,47.915994],[-115.993678,47.926183],[-115.995121,47.933827],[-115.998236,47.938779],[-116.007246,47.950087],[-116.030751,47.973349],[-116.03834,47.971318],[-116.04882,47.97716],[-116.049153,47.999923],[-116.048739,48.060093],[-116.04932,48.066644],[-116.049415,48.07722],[-116.048911,48.12493],[-116.049977,48.237604],[-116.049353,48.249936],[-116.049735,48.274668],[-116.048948,48.309847],[-116.050003,48.413492],[-116.049155,48.481247],[-116.049193,49.000912],[-116.00103,49.00127],[-115.990685,49.000909],[-115.501016,49.000694],[-115.207912,48.999228],[-114.375977,49.00139],[-114.250971,49.000905],[-114.224912,48.999687],[-114.201107,48.999249],[-114.180211,48.999703],[-114.059188,48.998856],[-113.907487,48.998858],[-113.864127,48.998276],[-113.692982,48.997632],[-113.576118,48.998478],[-113.375925,48.998562],[-113.356874,48.998224],[-113.19474,48.998909],[-113.116356,48.998462],[-112.143769,48.998917],[-112.003866,48.99857],[-112.000878,48.998921],[-111.761679,48.997614],[-111.500812,48.996963],[-111.003916,48.997537],[-110.592465,48.999012],[-110.531615,48.99839],[-110.438151,48.999188],[-109.500737,49.00044],[-109.454023,49.001132],[-109.437397,49.000631],[-109.384068,49.000374],[-109.285975,49.000479],[-109.250722,49.000011],[-109.000708,48.999234],[-107.704696,48.999872],[-107.441017,48.999363],[-107.363582,49.000019],[-106.050543,48.999207],[-105.612577,48.999703],[-104.875527,48.998991],[-104.048736,48.999877],[-104.0489,48.847387],[-104.047582,48.633984],[-104.048212,48.599055],[-104.047876,48.530798],[-104.047513,48.525913],[-104.048054,48.500025],[-104.047555,48.49414],[-104.046969,48.390675],[-104.046371,48.374154],[-104.046039,48.256761],[-104.045645,48.246179],[-104.044162,47.992836],[-104.041662,47.862282],[-104.043242,47.747106],[-104.043742,47.625016],[-104.044241,47.612288],[-104.043912,47.603229],[-104.044109,47.523595],[-104.045333,47.343452],[-104.045057,47.266868],[-104.045517,47.215666],[-104.044788,47.12743],[-104.045018,47.081202],[-104.045354,47.078574],[-104.045052,47.040863],[-104.045901,46.83079],[-104.045045,46.509788],[-104.046103,46.383916],[-104.045481,46.366871],[-104.045237,46.125002],[-104.045759,46.123946],[-104.046822,46.000199],[-104.04403,45.881975],[-104.042597,45.749998],[-104.041937,45.557915],[-104.041145,45.503367],[-104.041764,45.490789],[-104.040816,45.462708],[-104.040114,45.374214],[-104.039977,45.124988],[-104.039563,45.124039],[-104.040128,44.999987],[-104.039681,44.998041],[-104.057698,44.997431],[-104.250145,44.99822],[-104.665171,44.998618],[-104.72637,44.999518],[-104.759855,44.999066],[-105.038405,45.000345]]]},\"properties\":{\"name\":\"Montana\",\"nation\":\"USA \"}}]}","volume":"369","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Eggers, Margaret J. 0000-0002-9179-5114","orcid":"https://orcid.org/0000-0002-9179-5114","contributorId":331258,"corporation":false,"usgs":false,"family":"Eggers","given":"Margaret J.","affiliations":[{"id":79171,"text":"Crow Water Quality Partnership Program at Little Big Horn College/Montana State University","active":true,"usgs":false}],"preferred":false,"id":927920,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sigler, W. Adam 0000-0002-4815-0580","orcid":"https://orcid.org/0000-0002-4815-0580","contributorId":351128,"corporation":false,"usgs":false,"family":"Sigler","given":"W. Adam","affiliations":[{"id":36555,"text":"Montana State University","active":true,"usgs":false}],"preferred":false,"id":927921,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kiekover, Nicklas 0009-0007-3910-9272","orcid":"https://orcid.org/0009-0007-3910-9272","contributorId":351129,"corporation":false,"usgs":false,"family":"Kiekover","given":"Nicklas","affiliations":[{"id":36555,"text":"Montana State University","active":true,"usgs":false}],"preferred":false,"id":927922,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bradley, Paul M. 0000-0001-7522-8606","orcid":"https://orcid.org/0000-0001-7522-8606","contributorId":205668,"corporation":false,"usgs":true,"family":"Bradley","given":"Paul M.","affiliations":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"preferred":true,"id":927923,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Smalling, Kelly 0000-0002-1214-4920","orcid":"https://orcid.org/0000-0002-1214-4920","contributorId":221234,"corporation":false,"usgs":true,"family":"Smalling","given":"Kelly","affiliations":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"preferred":true,"id":927924,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Parker, Albert E.","contributorId":203235,"corporation":false,"usgs":false,"family":"Parker","given":"Albert E.","affiliations":[{"id":36555,"text":"Montana State University","active":true,"usgs":false}],"preferred":false,"id":927925,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Peterson, Robert K.D.","contributorId":351130,"corporation":false,"usgs":false,"family":"Peterson","given":"Robert K.D.","affiliations":[{"id":36555,"text":"Montana State University","active":true,"usgs":false}],"preferred":false,"id":927926,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"LaFave, John","contributorId":351131,"corporation":false,"usgs":false,"family":"LaFave","given":"John","affiliations":[{"id":36941,"text":"Montana Bureau of Mines and Geology","active":true,"usgs":false}],"preferred":false,"id":927927,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70266342,"text":"70266342 - 2025 - A new groundwater energy transport model for the MODFLOW hydrologic simulator","interactions":[],"lastModifiedDate":"2025-05-05T14:11:27.139592","indexId":"70266342","displayToPublicDate":"2025-02-14T09:08:16","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3825,"text":"Groundwater","active":true,"publicationSubtype":{"id":10}},"title":"A new groundwater energy transport model for the MODFLOW hydrologic simulator","docAbstract":"Heat transport in the subsurface is an important aspect of research related to the effects of a warming climate on ecological services (i.e., cold-water refugia); the development of geothermal resources for energy banking schemes (i.e., aquifer thermal energy storage [ATES]); and the effects of temperature on other aspects of groundwater quality, such as nutrient cycling. Historically, simulation of heat transport using the MODFLOW groundwater simulator and related codes was performed by scaling the input parameters of a solute-transport model to emulate heat transport. However, that approach required additional pre- and post-processing of input and output and could not account for the variation in effective thermal storage and transport properties during transient, unsaturated flow, for example. True heat-transport capabilities in the context of MODFLOW were first introduced in a variant called USG-Transport. More recently, a new groundwater energy-transport (GWE) model type has been added to MODFLOW 6, the core version of the MODFLOW hydrologic simulator. GWE supports the simulation of heat transport on structured or unstructured grids as well as within and between features of advanced packages that represent streams, lakes, multi-aquifer wells, and the unsaturated zone. GWE is integrated within MODFLOW 6 and is accessible through the FloPy Python package and the MODFLOW 6 application programming interface (API). An example simulation demonstrates conduction between grid cells through both the water and the solid aquifer material, including thermal bleeding from saturated overburden cells into a groundwater flow field.
","language":"English","publisher":"National Groundwater Association","doi":"10.1111/gwat.13470","usgsCitation":"Morway, E.D., Provost, A.M., Langevin, C.D., Hughes, J.D., Russcher, M.J., Chen, C., and Lin, Y., 2025, A new groundwater energy transport model for the MODFLOW hydrologic simulator: Groundwater, v. 63, no. 3, p. 409-421, https://doi.org/10.1111/gwat.13470.","productDescription":"13 p.","startPage":"409","endPage":"421","ipdsId":"IP-172581","costCenters":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"links":[{"id":487945,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/gwat.13470","text":"Publisher Index Page"},{"id":485372,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"63","issue":"3","noUsgsAuthors":false,"publicationDate":"2025-02-14","publicationStatus":"PW","contributors":{"authors":[{"text":"Morway, Eric D. 0000-0002-8553-6140 emorway@usgs.gov","orcid":"https://orcid.org/0000-0002-8553-6140","contributorId":4320,"corporation":false,"usgs":true,"family":"Morway","given":"Eric","email":"emorway@usgs.gov","middleInitial":"D.","affiliations":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"preferred":true,"id":935684,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Provost, Alden M. 0000-0002-4443-1107 aprovost@usgs.gov","orcid":"https://orcid.org/0000-0002-4443-1107","contributorId":2830,"corporation":false,"usgs":true,"family":"Provost","given":"Alden","email":"aprovost@usgs.gov","middleInitial":"M.","affiliations":[{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true}],"preferred":true,"id":935685,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Langevin, Christian D. 0000-0001-5610-9759 langevin@usgs.gov","orcid":"https://orcid.org/0000-0001-5610-9759","contributorId":1030,"corporation":false,"usgs":true,"family":"Langevin","given":"Christian","email":"langevin@usgs.gov","middleInitial":"D.","affiliations":[{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true}],"preferred":true,"id":935686,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hughes, Joseph D. 0000-0003-1311-2354 jdhughes@usgs.gov","orcid":"https://orcid.org/0000-0003-1311-2354","contributorId":2492,"corporation":false,"usgs":true,"family":"Hughes","given":"Joseph","email":"jdhughes@usgs.gov","middleInitial":"D.","affiliations":[{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true}],"preferred":true,"id":935687,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Russcher, Martijn J. 0000-0001-8799-6514","orcid":"https://orcid.org/0000-0001-8799-6514","contributorId":272524,"corporation":false,"usgs":false,"family":"Russcher","given":"Martijn","email":"","middleInitial":"J.","affiliations":[{"id":36257,"text":"Deltares","active":true,"usgs":false}],"preferred":false,"id":935688,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Chen, Chieh-Ying","contributorId":354439,"corporation":false,"usgs":false,"family":"Chen","given":"Chieh-Ying","affiliations":[{"id":38021,"text":"University of Illinois Urbana-Champaign","active":true,"usgs":false}],"preferred":false,"id":935689,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Lin, Yu-Feng 0000-0001-6454-0901","orcid":"https://orcid.org/0000-0001-6454-0901","contributorId":302351,"corporation":false,"usgs":false,"family":"Lin","given":"Yu-Feng","email":"","affiliations":[{"id":65462,"text":"Illinois Water Resources Center, University of Illinois at Urbana-Champaign","active":true,"usgs":false}],"preferred":false,"id":935690,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70263597,"text":"70263597 - 2025 - Remote single-station seismic monitoring of the July–October 2022 earthquake swarm at Tau volcano, American Samoa","interactions":[],"lastModifiedDate":"2025-02-19T15:57:20.28773","indexId":"70263597","displayToPublicDate":"2025-02-14T08:47:43","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":10542,"text":"The Seismic Record","active":true,"publicationSubtype":{"id":10}},"title":"Remote single-station seismic monitoring of the July–October 2022 earthquake swarm at Tau volcano, American Samoa","docAbstract":"From July to October 2022, a non-eruptive volcanic earthquake swarm occurred within ~15 km of Taʻū Island, located in eastern American Samoa. Felt reports from local residents were the only available information about the swarm when it started, as American Samoa lacked a seismic monitoring network. We developed a consistent single-station catalog for the entire swarm, using seismic data from the nearest station IU.AFI, ~250 km away. We applied the EQTransformer deep-learning model (Mousavi et al., 2020), automatically picking Pn and Sn arrivals on IU.AFI continuous data. We retained only events with Sn-Pn times of 22.5–25 seconds, consistent with the expected locations based on felt reports, then detected smaller swarm events with subsequent template-matching. This single-station catalog characterized the swarm’s onset and escalation to peak activity before a multi-agency field response team installed a local seismic network in mid-August 2022. This permanent seismic network captured the swarm’s decline. EQTransformer identified short S-P times on the first two locally deployed seismometers, both Raspberry Shake sensors, to constrain the swarm’s distance from Taʻū Island. Modern seismological processing methods, combined with basic observations such as felt reports, can quickly contribute useful information during an earthquake response in a poorly monitored region.","language":"English","publisher":"Seismological Society of America","doi":"10.1785/0320240040","usgsCitation":"Yoon, C., Skoumal, R., Michael, A.J., Jolly, A., Ellis, A.P., Downs, D.T., Dotray, P., Deligne, N.I., Chang, J., Bennington, N.L., Wech, A., Haney, M.M., Hotovec-Ellis, A.J., Lutu-McMoore, E., and Langkilde, M., 2025, Remote single-station seismic monitoring of the July–October 2022 earthquake swarm at Tau volcano, American Samoa: The Seismic Record, v. 5, no. 1, p. 83-96, https://doi.org/10.1785/0320240040.","productDescription":"14 p.","startPage":"83","endPage":"96","ipdsId":"IP-170130","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":487646,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1785/0320240040","text":"Publisher Index Page"},{"id":482217,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"American Somoa","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -169.52912354628728,\n -14.200315944676532\n ],\n [\n -169.52912354628728,\n -14.276188945189261\n ],\n [\n -169.4027807728498,\n -14.276188945189261\n ],\n [\n -169.4027807728498,\n -14.200315944676532\n ],\n [\n -169.52912354628728,\n -14.200315944676532\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"5","issue":"1","noUsgsAuthors":false,"publicationDate":"2025-02-14","publicationStatus":"PW","contributors":{"authors":[{"text":"Yoon, Clara 0000-0003-4521-3889","orcid":"https://orcid.org/0000-0003-4521-3889","contributorId":222019,"corporation":false,"usgs":true,"family":"Yoon","given":"Clara","email":"","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":927463,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Skoumal, Robert","contributorId":217693,"corporation":false,"usgs":true,"family":"Skoumal","given":"Robert","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":927464,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Michael, Andrew J. 0000-0002-2403-5019 michael@usgs.gov","orcid":"https://orcid.org/0000-0002-2403-5019","contributorId":1280,"corporation":false,"usgs":true,"family":"Michael","given":"Andrew","email":"michael@usgs.gov","middleInitial":"J.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true},{"id":234,"text":"Earthquake Hazards Program","active":true,"usgs":true}],"preferred":true,"id":927465,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jolly, A.D. 0000-0003-1020-9062","orcid":"https://orcid.org/0000-0003-1020-9062","contributorId":296487,"corporation":false,"usgs":true,"family":"Jolly","given":"A.D.","email":"","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":927466,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ellis, Andria P. 0000-0003-2543-0640","orcid":"https://orcid.org/0000-0003-2543-0640","contributorId":305983,"corporation":false,"usgs":true,"family":"Ellis","given":"Andria","email":"","middleInitial":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":927467,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Downs, Drew T. 0000-0002-9056-1404 ddowns@usgs.gov","orcid":"https://orcid.org/0000-0002-9056-1404","contributorId":173516,"corporation":false,"usgs":true,"family":"Downs","given":"Drew","email":"ddowns@usgs.gov","middleInitial":"T.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":927468,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Dotray, Peter 0000-0003-2984-455X","orcid":"https://orcid.org/0000-0003-2984-455X","contributorId":215611,"corporation":false,"usgs":true,"family":"Dotray","given":"Peter","email":"","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":927469,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Deligne, Natalia I. 0000-0001-9221-8581","orcid":"https://orcid.org/0000-0001-9221-8581","contributorId":257389,"corporation":false,"usgs":true,"family":"Deligne","given":"Natalia","email":"","middleInitial":"I.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":927470,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Chang, Jefferson 0000-0002-1258-589X","orcid":"https://orcid.org/0000-0002-1258-589X","contributorId":215608,"corporation":false,"usgs":true,"family":"Chang","given":"Jefferson","email":"","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":927471,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Bennington, Ninfa Lucia 0000-0003-3230-6744","orcid":"https://orcid.org/0000-0003-3230-6744","contributorId":346226,"corporation":false,"usgs":true,"family":"Bennington","given":"Ninfa","email":"","middleInitial":"Lucia","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":927472,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Wech, Aaron 0000-0003-4983-1991","orcid":"https://orcid.org/0000-0003-4983-1991","contributorId":202561,"corporation":false,"usgs":true,"family":"Wech","given":"Aaron","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":927473,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Haney, Matthew M. 0000-0003-3317-7884 mhaney@usgs.gov","orcid":"https://orcid.org/0000-0003-3317-7884","contributorId":172948,"corporation":false,"usgs":true,"family":"Haney","given":"Matthew","email":"mhaney@usgs.gov","middleInitial":"M.","affiliations":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":927474,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Hotovec-Ellis, Alicia J. 0000-0003-1917-0205","orcid":"https://orcid.org/0000-0003-1917-0205","contributorId":211785,"corporation":false,"usgs":true,"family":"Hotovec-Ellis","given":"Alicia","email":"","middleInitial":"J.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":927475,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Lutu-McMoore, Elinor","contributorId":341954,"corporation":false,"usgs":false,"family":"Lutu-McMoore","given":"Elinor","email":"","affiliations":[{"id":81814,"text":"NOAA National Weather Service Pago Pago Office","active":true,"usgs":false}],"preferred":false,"id":927476,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Langkilde, Marcus","contributorId":350957,"corporation":false,"usgs":false,"family":"Langkilde","given":"Marcus","affiliations":[{"id":83889,"text":"NOAA NWS Pago Pago","active":true,"usgs":false}],"preferred":false,"id":927477,"contributorType":{"id":1,"text":"Authors"},"rank":15}]}} ,{"id":70264632,"text":"70264632 - 2025 - Establishing historical baselines of arthropod assemblages using rodent paleomiddens","interactions":[],"lastModifiedDate":"2025-03-18T15:19:02.044943","indexId":"70264632","displayToPublicDate":"2025-02-14T08:06:23","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1839,"text":"Global Ecology and Biogeography","active":true,"publicationSubtype":{"id":10}},"title":"Establishing historical baselines of arthropod assemblages using rodent paleomiddens","docAbstract":"Aim
Arthropods are under-represented in paleoecological studies but are critical agents in ecological processes. Despite rigorous documentation of diverse arthropod assemblages from ancient rodent (or paleo) middens worldwide, their use for studying ancient arthropod diversity has stalled in recent decades. Here, we review published studies to identify how paleomidden arthropods can be leveraged to address significant questions in ecology and synthesise spatiotemporal trends in ancient arthropod diversity.
Location
Global with a focus on the Americas.
Time Period
From ~40,000 to 100 years before present.
Major Taxa Studied
Fossil arthropods preserved in rodent paleomiddens.
Methods
We identified four primary objectives in ecology that can be advanced using paleomidden arthropod fossils: the reconstruction of ancient biodiversity, the elucidation of mechanisms and processes driving arthropod range shifts, the incorporation of arthropods into ancient trophic webs, and the assessment of adaptive responses to changing environments.
Results
We identified 20 papers reporting arthropod remains, of which 14 provided data suitable for quantitative analyses. Although no significant differences in arthropod community diversity were found across broad geographic regions, substantial differences in community structure were observed. In North America, we also detected a decline in arthropod diversity from 10 to 5 ka BP, driven primarily by the absence of high-diversity assemblages during this period.
Main Conclusions
Paleomidden arthropods remain an underutilised ecological resource that can be leveraged to improve the inferential scope of arthropod research across spatiotemporal gradients. Collaboration between paleo- and neoecologists could help expand the sampling of ancient and modern arthropod communities, particularly those associated with paleomiddens, to create high-resolution datasets spanning important periods in biogeographical history. Paleomidden arthropods will remain a fundamental component for understanding arthropod biodiversity changes in the past, present, and future.
","language":"English","publisher":"Wiley","doi":"10.1111/geb.70006","usgsCitation":"Braasch, J., Betancourt, J.L., Dezerald, O., Peiris, U., Tapia-Rozas, M., Villagra, C., Latorre, C.L., and Gonzalez, A., 2025, Establishing historical baselines of arthropod assemblages using rodent paleomiddens: Global Ecology and Biogeography, v. 34, no. 2, e70006, 12 p., https://doi.org/10.1111/geb.70006.","productDescription":"e70006, 12 p.","ipdsId":"IP-172669","costCenters":[{"id":554,"text":"Science and Decisions Center","active":true,"usgs":true}],"links":[{"id":488330,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/geb.70006","text":"Publisher Index Page"},{"id":483474,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"2","noUsgsAuthors":false,"publicationDate":"2025-02-14","publicationStatus":"PW","contributors":{"authors":[{"text":"Braasch, Joseph","contributorId":352381,"corporation":false,"usgs":false,"family":"Braasch","given":"Joseph","affiliations":[{"id":12727,"text":"Rutgers University","active":true,"usgs":false}],"preferred":false,"id":931016,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Betancourt, Julio L. 0000-0002-7165-0743 jlbetanc@usgs.gov","orcid":"https://orcid.org/0000-0002-7165-0743","contributorId":3376,"corporation":false,"usgs":true,"family":"Betancourt","given":"Julio","email":"jlbetanc@usgs.gov","middleInitial":"L.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":554,"text":"Science and Decisions Center","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":931017,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dezerald, Olivier","contributorId":336824,"corporation":false,"usgs":false,"family":"Dezerald","given":"Olivier","email":"","affiliations":[{"id":80869,"text":"DECOD (Ecosystem Dynamics and Sustainability), INRAE, Institut Agro, IFREMER, Rennes, France","active":true,"usgs":false}],"preferred":false,"id":931018,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Peiris, Udari","contributorId":352382,"corporation":false,"usgs":false,"family":"Peiris","given":"Udari","affiliations":[{"id":84194,"text":"Pontificia Universidad Católica de Chile, Santiago","active":true,"usgs":false}],"preferred":false,"id":931019,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Tapia-Rozas, Maura","contributorId":352383,"corporation":false,"usgs":false,"family":"Tapia-Rozas","given":"Maura","affiliations":[{"id":84194,"text":"Pontificia Universidad Católica de Chile, Santiago","active":true,"usgs":false}],"preferred":false,"id":931020,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Villagra, Cristian","contributorId":352384,"corporation":false,"usgs":false,"family":"Villagra","given":"Cristian","affiliations":[{"id":84195,"text":"Universidad Metropolitana de Ciencias de la Educación, Santiago, Chile","active":true,"usgs":false}],"preferred":false,"id":931021,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Latorre, Claudio L.","contributorId":331520,"corporation":false,"usgs":false,"family":"Latorre","given":"Claudio","email":"","middleInitial":"L.","affiliations":[{"id":79225,"text":"Pontificia Universidad Católica de Chile, Santiago, Chile","active":true,"usgs":false}],"preferred":false,"id":931022,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Gonzalez, Angelica L.","contributorId":336826,"corporation":false,"usgs":false,"family":"Gonzalez","given":"Angelica L.","affiliations":[{"id":12727,"text":"Rutgers University","active":true,"usgs":false}],"preferred":false,"id":931023,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70263500,"text":"sir20245127 - 2025 - Groundwater age estimates for the Mississippi River Valley alluvial aquifer based on tracer data collected during 2018–20","interactions":[],"lastModifiedDate":"2025-07-21T18:22:10.201666","indexId":"sir20245127","displayToPublicDate":"2025-02-13T14:55:22","publicationYear":"2025","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2024-5127","displayTitle":"Groundwater Age Estimates for the Mississippi River Valley Alluvial Aquifer Based on Tracer Data Collected During 2018–20","title":"Groundwater age estimates for the Mississippi River Valley alluvial aquifer based on tracer data collected during 2018–20","docAbstract":"This study characterized groundwater age across the Mississippi River Valley alluvial aquifer (MRVA). Groundwater samples from 69 MRVA wells and 19 wells in Tertiary units of the Mississippi embayment aquifer system (MEAS) were analyzed for sulfur hexafluoride (SF6), tritium (3H), helium (He), and (or) carbon-14 of dissolved inorganic carbon (14C). The age distributions of 89 samples were estimated by fitting lumped parameter models to processed tracer concentrations with the U.S. Geological Survey software TracerLPM. Mean ages of MRVA groundwater samples ranged from 12 to 22,000 years, with a median of 140 years. Mean ages of MEAS groundwater samples ranged from 230 to 52,000 or more years, with a median of 13,500 years. The spatial distribution of MRVA groundwater ages was found to be influenced by depth, inflow of groundwater from deeper units, and soil saturated hydraulic conductivity. In parts of the MRVA, the spatial distribution of MRVA groundwater ages was found to be influenced by annual recharge and (or) annual groundwater pumpage.
Director, Lower Mississippi-Gulf Water Science Center, U.S. Geological Survey
640 Grassmere Park, Suite 100
Nashville, TN 37211
Contact Us- USGS Publications Warehouse
","tableOfContents":"The rapid advancement of environmental DNA (eDNA) science in the past two decades has inspired a concomitant growth in the development of eDNA sampling and analytical methods. However, these methods are often developed by individual laboratories or institutions, which can isolate protocols within programmes, agencies or regions and prevent the beneficial exchange of data and ideas. Recent efforts to advance national and international coordination have resulted in a groundswell of standardisation efforts, but there is still considerable confusion around the role of formal standards for regulatory or research applications. With this commentary, we hope to provide clarity on the terminology used in standardisation discussions, including the differences between formal standards and best practice guidelines. Additionally, we discuss how eDNA method choice may be informed by environmental management scenarios and review examples of formal eDNA method standards being used to inform management action. The eDNA community now has an opportunity to develop a roadmap for method development to help close standardisation gaps, advance eDNA method adoption and accelerate our ability to monitor biological life at the scales our current environmental challenges demand.
","language":"English","publisher":"Pensoft","doi":"10.3897/mbmg.9.132076","usgsCitation":"Theroux, S., Sepulveda, A., Abbott, C., Gold, Z., Watts, A., Hunter, M., Klymus, K.E., Hirsch, S., Craine, J.M., Jones-Slobodian, D.N., Brown, R., Steele, J., Takahashi, M., Noble, R.T., and Darling, J.A., 2025, What is eDNA method standardization and why do we need it?: Metabarcoding and Metagenomics, v. 9, e132076, 16 p., https://doi.org/10.3897/mbmg.9.132076.","productDescription":"e132076, 16 p.","ipdsId":"IP-167695","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true},{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":489778,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3897/mbmg.9.132076","text":"Publisher Index Page"},{"id":482267,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"9","noUsgsAuthors":false,"publicationDate":"2025-02-13","publicationStatus":"PW","contributors":{"authors":[{"text":"Theroux, Susanna","contributorId":244544,"corporation":false,"usgs":false,"family":"Theroux","given":"Susanna","affiliations":[],"preferred":false,"id":927815,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sepulveda, Adam 0000-0001-7621-7028 asepulveda@usgs.gov","orcid":"https://orcid.org/0000-0001-7621-7028","contributorId":4187,"corporation":false,"usgs":true,"family":"Sepulveda","given":"Adam","email":"asepulveda@usgs.gov","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":true,"id":927816,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Abbott, Cathryn L.","contributorId":350357,"corporation":false,"usgs":false,"family":"Abbott","given":"Cathryn L.","affiliations":[{"id":13677,"text":"Fisheries and Oceans Canada","active":true,"usgs":false}],"preferred":false,"id":927992,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gold, Zachary","contributorId":305792,"corporation":false,"usgs":false,"family":"Gold","given":"Zachary","email":"","affiliations":[{"id":66296,"text":"NOAA Pacific Marine Environmental Laboratory","active":true,"usgs":false}],"preferred":false,"id":927817,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Watts, Alison W.","contributorId":351062,"corporation":false,"usgs":false,"family":"Watts","given":"Alison W.","affiliations":[{"id":12667,"text":"University of New Hampshire","active":true,"usgs":false}],"preferred":false,"id":927818,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hunter, Margaret 0000-0002-4760-9302","orcid":"https://orcid.org/0000-0002-4760-9302","contributorId":207584,"corporation":false,"usgs":true,"family":"Hunter","given":"Margaret","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":927819,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Klymus, Katy E. 0000-0002-8843-6241 kklymus@usgs.gov","orcid":"https://orcid.org/0000-0002-8843-6241","contributorId":5043,"corporation":false,"usgs":true,"family":"Klymus","given":"Katy","email":"kklymus@usgs.gov","middleInitial":"E.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":927820,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Hirsch, Shana L.","contributorId":351152,"corporation":false,"usgs":false,"family":"Hirsch","given":"Shana L.","affiliations":[],"preferred":false,"id":927993,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Craine, Joseph M.","contributorId":139154,"corporation":false,"usgs":false,"family":"Craine","given":"Joseph","email":"","middleInitial":"M.","affiliations":[{"id":12661,"text":"Kansas State University","active":true,"usgs":false}],"preferred":false,"id":927994,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Jones-Slobodian, Devin Nicole 0000-0001-9215-2930","orcid":"https://orcid.org/0000-0001-9215-2930","contributorId":305357,"corporation":false,"usgs":true,"family":"Jones-Slobodian","given":"Devin","middleInitial":"Nicole","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":true,"id":927821,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Brown, Rachel J.","contributorId":350358,"corporation":false,"usgs":false,"family":"Brown","given":"Rachel J.","affiliations":[{"id":52582,"text":"US Fish and Wildlife","active":true,"usgs":false}],"preferred":false,"id":927822,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Steele, Joshua A.","contributorId":350364,"corporation":false,"usgs":false,"family":"Steele","given":"Joshua A.","affiliations":[{"id":12704,"text":"Southern California Coastal Water Research Project","active":true,"usgs":false}],"preferred":false,"id":927995,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Takahashi, Miwa","contributorId":350365,"corporation":false,"usgs":false,"family":"Takahashi","given":"Miwa","affiliations":[{"id":83724,"text":"Indian Oceans Marine Research Centre, Australia","active":true,"usgs":false}],"preferred":false,"id":927996,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Noble, Rachel T.","contributorId":207711,"corporation":false,"usgs":false,"family":"Noble","given":"Rachel","email":"","middleInitial":"T.","affiliations":[{"id":37611,"text":"Institute of Marine Sciences, University of North Carolina at Chapel Hill","active":true,"usgs":false}],"preferred":false,"id":927997,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Darling, John A.","contributorId":209626,"corporation":false,"usgs":false,"family":"Darling","given":"John","email":"","middleInitial":"A.","affiliations":[{"id":13529,"text":"US Environmental Protection Agency","active":true,"usgs":false}],"preferred":true,"id":927998,"contributorType":{"id":1,"text":"Authors"},"rank":15}]}} ,{"id":70267291,"text":"70267291 - 2025 - The communication of volcano information in New Zealand - A narrative review","interactions":[],"lastModifiedDate":"2025-08-04T15:44:57.109852","indexId":"70267291","displayToPublicDate":"2025-02-13T08:15:47","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2869,"text":"New Zealand Journal of Geology and Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"The communication of volcano information in New Zealand - A narrative review","docAbstract":"Communication of volcano information is critical for effective volcanic risk management. A variety of information is communicated to inform decisions and guide actions for planning, preparedness, and response. Such information needs to be reliable, and fit-for-purpose across different stages of volcanic activity (quiescence, unrest, short or long-term eruptive stages, and the post-eruptive stage). However, an understanding of communication across these different stages of volcanic activity remains limited. We undertook a narrative review of New Zealand literature to explore what information is communicated about volcanoes, across which stages of activity and by whom. Results highlight that NZ literature only documents certain aspects of volcano information and communication, specifically regarding certain locations, stages of volcanic activity (i.e. quiescence or unrest), or hazards. Literature gaps exist regarding volcano communication during unrest and post-eruptive stages, as well as how volcano information evolves between these phases, and how decision-makers use such information. Additional work would be useful to document existing examples of volcano information for different stages of activity. Further research could help in understanding the information needs of decision-makers during each of these stages to improve information and communication.
","language":"English","publisher":"Taylor & Francis","doi":"10.1080/00288306.2025.2454558","usgsCitation":"Das, M., Becker, J., Doyle, E., Charlton, D., Clive, M.A., Krippner, J., Vinnell, L., Miller, C.A., Stewart, C., Gabrielsen, H., Potter, S., Leonard, G., Johnston, D.M., Tapuke, K., Fournier, N., and McBride, S., 2025, The communication of volcano information in New Zealand - A narrative review: New Zealand Journal of Geology and Geophysics, v. 68, no. 4, p. 591-608, https://doi.org/10.1080/00288306.2025.2454558.","productDescription":"18 p.","startPage":"591","endPage":"608","ipdsId":"IP-162228","costCenters":[{"id":78686,"text":"Geologic Hazards Science Center - Seismology / Geomagnetism","active":true,"usgs":true}],"links":[{"id":486157,"rank":2,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":489133,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1080/00288306.2025.2454558","text":"Publisher Index Page"}],"country":"New Zealand","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n 171.99324824868404,\n -33.98420412080025\n ],\n [\n 171.99324824868404,\n -41.683153233580086\n ],\n [\n 178.86093212265428,\n -41.683153233580086\n ],\n [\n 178.86093212265428,\n -33.98420412080025\n ],\n [\n 171.99324824868404,\n -33.98420412080025\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"68","issue":"4","noUsgsAuthors":false,"publicationDate":"2025-02-13","publicationStatus":"PW","contributors":{"authors":[{"text":"Das, Manomita","contributorId":355560,"corporation":false,"usgs":false,"family":"Das","given":"Manomita","affiliations":[{"id":13571,"text":"Massey University","active":true,"usgs":false}],"preferred":false,"id":937625,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Becker, Julia S.","contributorId":217541,"corporation":false,"usgs":false,"family":"Becker","given":"Julia S.","affiliations":[{"id":36277,"text":"GNS Science","active":true,"usgs":false}],"preferred":false,"id":937626,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Doyle, Emma Hudson","contributorId":355561,"corporation":false,"usgs":false,"family":"Doyle","given":"Emma Hudson","affiliations":[{"id":13571,"text":"Massey University","active":true,"usgs":false}],"preferred":false,"id":937627,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Charlton, Danielle 0000-0002-7837-514X","orcid":"https://orcid.org/0000-0002-7837-514X","contributorId":302366,"corporation":false,"usgs":false,"family":"Charlton","given":"Danielle","email":"","affiliations":[{"id":36277,"text":"GNS Science","active":true,"usgs":false}],"preferred":false,"id":937628,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Clive, Mary Ann T.","contributorId":330167,"corporation":false,"usgs":false,"family":"Clive","given":"Mary","email":"","middleInitial":"Ann T.","affiliations":[{"id":78832,"text":"Waipapa Taumata Rau University of Auckland; GNS Science Te Pū Ao, New Zealand","active":true,"usgs":false}],"preferred":false,"id":937629,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Krippner, Janine","contributorId":349058,"corporation":false,"usgs":false,"family":"Krippner","given":"Janine","affiliations":[{"id":35780,"text":"University of Waikato, New Zealand","active":true,"usgs":false}],"preferred":false,"id":937630,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Vinnell, Lauren","contributorId":292282,"corporation":false,"usgs":false,"family":"Vinnell","given":"Lauren","email":"","affiliations":[{"id":13571,"text":"Massey University","active":true,"usgs":false}],"preferred":false,"id":937631,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Miller, Craig A. 0000-0001-8499-0352","orcid":"https://orcid.org/0000-0001-8499-0352","contributorId":219638,"corporation":false,"usgs":false,"family":"Miller","given":"Craig","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":937632,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Stewart, Carol","contributorId":236960,"corporation":false,"usgs":false,"family":"Stewart","given":"Carol","email":"","affiliations":[{"id":47573,"text":"Massey University, NZ","active":true,"usgs":false}],"preferred":false,"id":937633,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Gabrielsen, Hollei","contributorId":355562,"corporation":false,"usgs":false,"family":"Gabrielsen","given":"Hollei","affiliations":[{"id":84779,"text":"Department of Conservation, New Zealand","active":true,"usgs":false}],"preferred":false,"id":937634,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Potter, Sally H.","contributorId":352842,"corporation":false,"usgs":false,"family":"Potter","given":"Sally H.","affiliations":[{"id":36277,"text":"GNS Science","active":true,"usgs":false}],"preferred":false,"id":937635,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Leonard, Graham","contributorId":345437,"corporation":false,"usgs":false,"family":"Leonard","given":"Graham","affiliations":[{"id":5111,"text":"GNS Science, New Zealand","active":true,"usgs":false}],"preferred":false,"id":937636,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Johnston, David M. 0000-0001-5114-5355","orcid":"https://orcid.org/0000-0001-5114-5355","contributorId":239591,"corporation":false,"usgs":false,"family":"Johnston","given":"David","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":937637,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Tapuke, Kelvin","contributorId":355563,"corporation":false,"usgs":false,"family":"Tapuke","given":"Kelvin","affiliations":[{"id":13571,"text":"Massey University","active":true,"usgs":false}],"preferred":false,"id":937638,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Fournier, Nico","contributorId":272205,"corporation":false,"usgs":false,"family":"Fournier","given":"Nico","email":"","affiliations":[{"id":47796,"text":"GNS, New Zealand","active":true,"usgs":false}],"preferred":false,"id":937639,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"McBride, Sara K. 0000-0002-8062-6542","orcid":"https://orcid.org/0000-0002-8062-6542","contributorId":206933,"corporation":false,"usgs":true,"family":"McBride","given":"Sara K.","affiliations":[{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true},{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":937640,"contributorType":{"id":1,"text":"Authors"},"rank":16}]}} ,{"id":70264978,"text":"70264978 - 2025 - Local, regional, and distal recordings of seismic unrest at Tau Island volcano, American Samoa","interactions":[],"lastModifiedDate":"2025-03-27T15:18:39.378071","indexId":"70264978","displayToPublicDate":"2025-02-13T08:09:26","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"Local, regional, and distal recordings of seismic unrest at Tau Island volcano, American Samoa","docAbstract":"A seismic swarm near Taʻū Island, a volcanic island in eastern American Samoa, occurred from July to October 2022. The earliest unrest was noted as felt shaking reports in late July, and instrumentation varied in the beginning of the sequence as the U.S. Geological Survey (USGS) Hawaiian Volcano Observatory responded by installing temporary and then permanent seismometers to monitor the activity. This network variability made it difficult to characterize the earliest seismicity and contextualize the entire sequence to discriminate between an underlying tectonic or volcanic source. Here, we present results analyzing hydroacoustic detections from an International Monitoring System hydrophone array near Wake Island, 4500 km northwest of Taʻū Island volcano. Using least-squares beamforming analysis, we create a catalog of T-wave detections from the direction of Taʻū Island to track the earthquakes, some of which were located by the USGS National EarthquakeInformation Center. Both the rate and hydroacoustic pressures, which we interpret as a proxy for earthquake size, gradually increased from late July to August, peaking on August 19 (rate) and August 24 (size), before decreasing to background in late September. Minutes-long bursts of tremor were also contemporaneously recorded as local network data became avail-able on August 20. Tremor activity continued throughout the rest of August, peaking on August 25, before ending in earlySeptember. These tremor bursts were band-limited to ~ 1–5 Hz and recorded as S waves at a regional station on the island of Upolu in Samoa, 250 km to the west of Taʻū Island. Our results do not constrain the tremor locations, but comparisons of earthquake and tremor reduced displacements recorded locally and regionally suggest a deeper tremor source. We interpret the increase in earthquake size and rate, together with the occurrence, characteristics, and relative depth of the tremor to be the result of magmatic activity beneath Taʻū Island volcano.","language":"English","publisher":"Springer Nature","doi":"10.1007/s00445-025-01798-0","usgsCitation":"Wech, A., Haney, M.M., Chang, J., Jolly, A., Yoon, C., and Skoumal, R.J., 2025, Local, regional, and distal recordings of seismic unrest at Tau Island volcano, American Samoa: Bulletin of Volcanology, v. 87, 15, 15 p., https://doi.org/10.1007/s00445-025-01798-0.","productDescription":"15, 15 p.","ipdsId":"IP-172244","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":483947,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"American Samoa, Taʻū Island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -169.53339284390117,\n -14.197912338111138\n ],\n [\n -169.53339284390117,\n -14.283297461659885\n ],\n [\n -169.4061487117877,\n -14.283297461659885\n ],\n [\n -169.4061487117877,\n -14.197912338111138\n ],\n [\n -169.53339284390117,\n -14.197912338111138\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"87","noUsgsAuthors":false,"publicationDate":"2025-02-13","publicationStatus":"PW","contributors":{"authors":[{"text":"Wech, Aaron 0000-0003-4983-1991","orcid":"https://orcid.org/0000-0003-4983-1991","contributorId":202561,"corporation":false,"usgs":true,"family":"Wech","given":"Aaron","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":932148,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haney, Matthew M. 0000-0003-3317-7884 mhaney@usgs.gov","orcid":"https://orcid.org/0000-0003-3317-7884","contributorId":172948,"corporation":false,"usgs":true,"family":"Haney","given":"Matthew","email":"mhaney@usgs.gov","middleInitial":"M.","affiliations":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":932149,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chang, Jefferson 0000-0002-1258-589X","orcid":"https://orcid.org/0000-0002-1258-589X","contributorId":215608,"corporation":false,"usgs":true,"family":"Chang","given":"Jefferson","email":"","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":932150,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jolly, A.D. 0000-0003-1020-9062","orcid":"https://orcid.org/0000-0003-1020-9062","contributorId":296487,"corporation":false,"usgs":true,"family":"Jolly","given":"A.D.","email":"","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":932151,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Yoon, Clara 0000-0003-4521-3889","orcid":"https://orcid.org/0000-0003-4521-3889","contributorId":222019,"corporation":false,"usgs":true,"family":"Yoon","given":"Clara","email":"","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":932152,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Skoumal, Robert J. 0000-0002-5627-6239 rskoumal@usgs.gov","orcid":"https://orcid.org/0000-0002-5627-6239","contributorId":191213,"corporation":false,"usgs":true,"family":"Skoumal","given":"Robert","email":"rskoumal@usgs.gov","middleInitial":"J.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":932153,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70266058,"text":"70266058 - 2025 - New distributional record of the federally threatened Rabbitsfoot Mussel (Theliderma cylindrica) in Oklahoma","interactions":[],"lastModifiedDate":"2025-04-24T15:18:54.352194","indexId":"70266058","displayToPublicDate":"2025-02-13T08:08:28","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3444,"text":"Southeastern Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"New distributional record of the federally threatened Rabbitsfoot Mussel (Theliderma cylindrica) in Oklahoma","docAbstract":"Sampling conducted from May to August of 2024 yielded new distributional records for the federally threatened Theliderma cylindrica (Rabbitsfoot) in the Caney River, OK. We found 4 live individuals, representing at least 2 age classes, ∼7 km upstream of the confluence with the Verdigris River. This report is the first documentation of live Rabbitsfoot in the Caney River, where the species was previously known only from weathered shells. This finding extends the known distribution of Rabbitsfoot into a system previously unrecognized as part of its range.
","language":"English","publisher":"BioOne","doi":"10.1656/058.024.0103","usgsCitation":"Torolski, H., Long, J.M., Lonsinger, R.C., and Bruckerhoff, L., 2025, New distributional record of the federally threatened Rabbitsfoot Mussel (Theliderma cylindrica) in Oklahoma: Southeastern Naturalist, v. 24, no. 1, p. N1-N8, https://doi.org/10.1656/058.024.0103.","productDescription":"9 p.","startPage":"N1","endPage":"N8","ipdsId":"IP-170866","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":484982,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oklahoma","otherGeospatial":"Caney River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -96.99994343023609,\n 36.988090980834286\n ],\n [\n -96.99994343023609,\n 36.30276843046697\n ],\n [\n -95.48619291655407,\n 36.30276843046697\n ],\n [\n -95.48619291655407,\n 36.988090980834286\n ],\n [\n -96.99994343023609,\n 36.988090980834286\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"24","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Torolski, Hunter M.","contributorId":351295,"corporation":false,"usgs":false,"family":"Torolski","given":"Hunter M.","affiliations":[{"id":7249,"text":"Oklahoma State University","active":true,"usgs":false}],"preferred":false,"id":934473,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Long, James M. 0000-0002-8658-9949 jmlong@usgs.gov","orcid":"https://orcid.org/0000-0002-8658-9949","contributorId":3453,"corporation":false,"usgs":true,"family":"Long","given":"James","email":"jmlong@usgs.gov","middleInitial":"M.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":934474,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lonsinger, Robert Charles 0000-0002-1040-7299","orcid":"https://orcid.org/0000-0002-1040-7299","contributorId":340524,"corporation":false,"usgs":true,"family":"Lonsinger","given":"Robert","email":"","middleInitial":"Charles","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":934475,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bruckerhoff, Lindsey A.","contributorId":353781,"corporation":false,"usgs":false,"family":"Bruckerhoff","given":"Lindsey A.","affiliations":[{"id":18155,"text":"The Ohio State University","active":true,"usgs":false}],"preferred":false,"id":934476,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70263501,"text":"sir20255001 - 2025 - Sensitivity of benthic biota and toxicity of cadmium, cobalt, copper, nickel, lead, and zinc mixtures in Washington, United States, and British Columbia, Canada","interactions":[],"lastModifiedDate":"2025-07-21T18:21:08.009203","indexId":"sir20255001","displayToPublicDate":"2025-02-13T06:25:56","publicationYear":"2025","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2025-5001","displayTitle":"Sensitivity of Benthic Biota and Toxicity of Cadmium, Cobalt, Copper, Nickel, Lead, and Zinc Mixtures in Near-Surface Porewater in the Upper Columbia River Basin, Washington, United States, and British Columbia, Canada","title":"Sensitivity of benthic biota and toxicity of cadmium, cobalt, copper, nickel, lead, and zinc mixtures in Washington, United States, and British Columbia, Canada","docAbstract":"Relative sensitivities and responses of juvenile white sturgeon (Acipenser transmontanus), Hyalella azteca, two families of mayfly (Ephemerellidae, Heptageniidae), one family of caddisfly (Brachycentridae), and a natural community of benthic macroinvertebrates (BMI) to multiple metals are predicted using previously collected laboratory and field samples and a metal mixture model. Biological responses in single metal exposures are used to parameterize toxicity functions, which include accumulations of hydrogen and selected metals on biological receptors, intrinsic potencies of hydrogen and metals, sensitivities of organisms, and times of exposure. The model then is used to predict responses in multiple metal laboratory exposures and field-collected porewater. The following sensitivity sequence in porewater was determined based on endpoints of survival or total abundance: juvenile white sturgeon greater than (>) Ephemerellidae family > Hyalella azteca > Heptageniidae family about equal to (~) benthic macroinvertebrate community > Brachycentridae family. The fraction of porewater samples that are predicted to have adverse impacts on benthic biota (20-percent or greater negative response) depends on organism sensitivities and metal toxicities, and ranges from 44 to 48 percent for juvenile white sturgeon, 23 to 26 percent for the Ephemerellidae family, 16 to 22 percent for Hyalella azteca, 5 to 8 percent for the Heptageniidae family and BMI community, and 0 percent for the caddisfly family. The most toxic porewater in the upper Columbia River Basin (UCR) is at the backwater bar site at Deadmans Eddy and China Bend. The model also indicates that the element responsible for the most toxic conditions in UCR porewater is copper for all organisms, except Hyalella azteca and the metal-insensitive Brachycentridae family. Copper and lead result in the most toxic conditions for Hyalella azteca. This approach and results can aid in assessing metal toxicity and its potential risk to aquatic biota in ecosystems impacted by historical mining activities.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20255001","collaboration":"Prepared in cooperation with the U.S. Environmental Protection Agency","usgsCitation":"Balistrieri, L.S., 2025, Sensitivity of benthic biota and toxicity of cadmium, cobalt, copper, nickel, lead, and zinc mixtures in Washington, United States, and British Columbia, Canada: U.S. Geological Survey Scientific Investigations Report 2025–5001, 19 p., https://doi.org/10.3133/sir20255001.","productDescription":"v, 19 p.","onlineOnly":"Y","ipdsId":"IP-168170","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":492689,"rank":6,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_118446.htm","linkFileType":{"id":5,"text":"html"}},{"id":482001,"rank":4,"type":{"id":34,"text":"Image Folder"},"url":"https://pubs.usgs.gov/sir/2025/5001/images"},{"id":482002,"rank":5,"type":{"id":31,"text":"Publication XML"},"url":"https://pubs.usgs.gov/sir/2025/5001/sir20255001.XML"},{"id":482000,"rank":3,"type":{"id":39,"text":"HTML Document"},"url":"https://pubs.usgs.gov/publication/sir20255001/full","text":"Report","linkFileType":{"id":5,"text":"html"},"description":"SIR 2025-5001"},{"id":481999,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2025/5001/sir20255001.pdf","text":"Report","size":"2.2 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2025-5001"},{"id":481998,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sir/2025/5001/coverthb.jpg"}],"country":"Canada, United States","state":"British Columbia, Washington","otherGeospatial":"Upper Columbia River basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -117.333,\n 49.5\n ],\n [\n -118.333,\n 49.5\n ],\n [\n -118.333,\n 48.6\n ],\n [\n -117.333,\n 48.6\n ],\n [\n -117.333,\n 49.5\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","contact":"Director, Washington Water Science Center
U.S. Geological Survey
934 Broadway, Suite 300
Tacoma, Washington 98402
Advanced Research Computing provides access to high-performance computing (HPC) resources as well as training and consultation for effective use of these powerful systems. This product outlines current HPC machines, capabilities, classes, and enabled science.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston VA","doi":"10.3133/gip248","usgsCitation":"Colasuonno, L.T., Uribe, R.D., Gordon, J., and Falgout, J.T., 2025, Advanced Research Computing (ver. 1.1, March 2025): U.S. Geological Survey General Information Product 248, https://doi.org/10.3133/gip248.","productDescription":"2 p.","onlineOnly":"N","ipdsId":"IP-163164","costCenters":[{"id":37273,"text":"Advanced Research Computing (ARC)","active":true,"usgs":true},{"id":38128,"text":"Science Analytics and Synthesis","active":true,"usgs":true}],"links":[{"id":481680,"rank":3,"type":{"id":31,"text":"Publication XML"},"url":"https://pubs.usgs.gov/gip/248/gip248.xml"},{"id":481702,"rank":4,"type":{"id":34,"text":"Image Folder"},"url":"https://pubs.usgs.gov/gip/248/images"},{"id":481996,"rank":5,"type":{"id":39,"text":"HTML Document"},"url":"https://pubs.usgs.gov/publication/gip248/full","text":"Report","linkFileType":{"id":5,"text":"html"},"description":"GIP 248"},{"id":481677,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/gip/248/coverthb2.jpg"},{"id":481678,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/gip/248/gip248.pdf","text":"Flyer","size":"1.44 MB","linkFileType":{"id":1,"text":"pdf"},"description":"GIP 248"},{"id":483239,"rank":6,"type":{"id":25,"text":"Version History"},"url":"https://pubs.usgs.gov/gip/248/versionHist.txt","text":"Version History","size":"8.0 KB","linkFileType":{"id":2,"text":"txt"},"description":"GIP 248 version history"}],"edition":"Version 1.0: February 12, 2025; Version 1.1: March 12, 2025","contact":"Director, Science Analytics and Synthesis Program
U.S. Geological Survey
Box 25046, Mail Stop 302
Denver, CO 80225
In the arid Grand Canyon region, water resources are limited to primarily the Colorado River and associated tributaries and to groundwater in the form of seeps and springs. Groundwater resources in the region supply water for human use and support diverse and rich ecosystems in the locations immediately surrounding the seeps and springs. Throughout the region, uranium resources occur and may interact with water resources in both mined and unmined uranium deposits. There is a need to better understand groundwater in the region and the effects from uranium mining in order to better manage the limited water resources in the area. This Fact Sheet summarizes results from U.S. Geological Survey studies that were conducted on this topic from 2012 to 2023.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston VA","doi":"10.3133/fs20243055","issn":"2327-6916, 2327-6932","collaboration":"Prepared in cooperation with the National Park Service","programNote":"Environmental Health Program","usgsCitation":"Beisner, K.R., Siebers, B.J., Tillman, F.D., and Walton-Day, K., 2025, Water resources related to breccia pipe uranium mining in the Grand Canyon region: U.S. Geological Survey Fact Sheet 2024–3055, 4 p., https://doi.org/10.3133/fs20243055.","productDescription":"4 p.","numberOfPages":"4","onlineOnly":"N","ipdsId":"IP-160657","costCenters":[{"id":472,"text":"New Mexico Water Science Center","active":true,"usgs":true}],"links":[{"id":481937,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/fs/2024/3055/coverthb.jpg"},{"id":481947,"rank":12,"type":{"id":22,"text":"Related Work"},"url":"https://doi.org/10.3133/sir20225037","text":"USGS SIR 2022–5037","linkHelpText":"- Conceptual models of groundwater flow in the Grand Canyon region, Arizona"},{"id":481948,"rank":13,"type":{"id":22,"text":"Related Work"},"url":"https://doi.org/10.1007/s10040-020-02193-z","text":"Journal Article","linkHelpText":"- Rethinking groundwater flow on the South Rim of the Grand Canyon, USA—Characterizing recharge sources and flow paths with environmental tracers"},{"id":481938,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/2024/3055/fs20243055.pdf","size":"1.97 MB","linkFileType":{"id":1,"text":"pdf"},"description":"FS 2024-3055"},{"id":481939,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/2024/3055/fs20243055_printer-friendly.pdf","text":"Printer Friendly Supplemental File","size":"1.98 MB","linkFileType":{"id":1,"text":"pdf"},"description":"Printer Friendly FS 2024-3055"},{"id":481940,"rank":4,"type":{"id":34,"text":"Image Folder"},"url":"https://pubs.usgs.gov/fs/2024/3055/images"},{"id":481941,"rank":5,"type":{"id":31,"text":"Publication XML"},"url":"https://pubs.usgs.gov/fs/2024/3055/fs20243055.XML","linkFileType":{"id":8,"text":"xml"},"description":"FS 2024-3055 XML"},{"id":483257,"rank":6,"type":{"id":39,"text":"HTML Document"},"url":"https://pubs.usgs.gov/publication/fs20243055/full","linkFileType":{"id":5,"text":"html"},"description":"FS 2024-3055 HTML"},{"id":481951,"rank":7,"type":{"id":22,"text":"Related Work"},"url":"https://doi.org/10.3133/fs20243003","text":"USGS FS 2024–3003","linkHelpText":"- Balancing natural resource use and extraction of uranium and other elements in the Grand Canyon region"},{"id":481943,"rank":8,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/sir/2010/5025/","text":"USGS SIR 2010–5025","linkHelpText":"- Hydrological, geological, and biological site characterization of breccia pipe uranium deposits in northern Arizona"},{"id":481944,"rank":9,"type":{"id":22,"text":"Related Work"},"url":"https://doi.org/10.1144/geochem2023-007","text":"Journal Article","linkHelpText":"- Anthropogenic influence on groundwater geochemistry in Horn Creek watershed near the Orphan Mine in Grand Canyon National Park, Arizona, USA"},{"id":481945,"rank":10,"type":{"id":22,"text":"Related Work"},"url":"https://doi.org/10.1016/j.ejrh.2023.101461","text":"Journal Article","linkHelpText":"- Utilizing anthropogenic compounds and geochemical tracers to identify preferential structurally controlled groundwater pathways influencing springs in Grand Canyon National Park, Arizona, USA"},{"id":481946,"rank":11,"type":{"id":22,"text":"Related Work"},"url":"https://doi.org/10.1007/s10040-016-1494-8","text":"Journal Article","linkHelpText":"- Geochemistry and hydrology of perched groundwater springs—Assessing elevated uranium concentrations at Pigeon Spring relative to nearby Pigeon Mine, Arizona (USA)"},{"id":481949,"rank":14,"type":{"id":22,"text":"Related Work"},"url":"https://doi.org/10.1371/journal.pone.0241502","text":"Journal Article","linkHelpText":"- Assessing uranium and select trace elements associated with breccia pipe uranium deposits in the Colorado River and main tributaries in Grand Canyon, USA"},{"id":481950,"rank":15,"type":{"id":22,"text":"Related Work"},"url":"https://doi.org/10.1038/s41598-021-01621-8","text":"Journal Article","linkHelpText":"- An assessment of uranium in groundwater in the Grand Canyon region"}],"country":"United States","state":"Arizona","otherGeospatial":"Grand Canyon region","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -111.31257554612749,\n 36.98617449546404\n ],\n [\n -114.0381223568529,\n 36.98617449546404\n ],\n [\n -114.0381223568529,\n 35.5450981868304\n ],\n [\n -111.31257554612749,\n 35.5450981868304\n ],\n [\n -111.31257554612749,\n 36.98617449546404\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","contact":"Director, New Mexico Water Science Center
U.S. Geological Survey
6700 Edith Blvd. NE
Albuquerque, NM 87113
Contact Us- USGS Publications Warehouse
","tableOfContents":"Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean conventional resources of 3.3 billion barrels of oil and 80.3 trillion cubic feet of gas in the Zagros Fold Belt of Iran, Iraq, Syria, and Turkey.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston VA","doi":"10.3133/fs20243048","programNote":"National and Global Petroleum Assessment","usgsCitation":"Schenk, C.J., Mercier, T.J., Le, P.A., Cicero, A.D., Drake, R.M., II, Gelman, S.E., Hearon, J.S., Johnson, B.G., Lagesse, J.H., Leathers-Miller, H.M., and Timm, K.K., 2025, Assessment of undiscovered conventional oil and gas resources of the Zagros Fold Belt of Iran, Iraq, Syria, and Turkey, 2023: U.S. Geological Survey Fact Sheet 2024–3048, 4 p., https://doi.org/10.3133/fs20243048.","productDescription":"Report: 4 p.; Data Release","onlineOnly":"Y","ipdsId":"IP-156237","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":482084,"rank":6,"type":{"id":39,"text":"HTML Document"},"url":"https://pubs.usgs.gov/publication/fs20243048/full","text":"Report","linkFileType":{"id":5,"text":"html"},"description":"FS 2024-3048"},{"id":482048,"rank":4,"type":{"id":34,"text":"Image Folder"},"url":"https://pubs.usgs.gov/fs/2024/3048/images"},{"id":482049,"rank":5,"type":{"id":31,"text":"Publication XML"},"url":"https://pubs.usgs.gov/fs/2024/3048/fs20243048.xml"},{"id":481802,"rank":3,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P133QODA","text":"USGS data release","linkHelpText":"USGS National and Global Oil and Gas Assessment Project—Zagros Fold Belt of Iran and Turkey—Assessment unit boundaries, input data tables, and fact sheet data tables"},{"id":481771,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/2024/3048/fs20243048.pdf","text":"Report","size":"2.21 MB","linkFileType":{"id":1,"text":"pdf"},"description":"FS 2024-3048"},{"id":481770,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/fs/2024/3048/coverthb.jpg"}],"country":"Iran, Iraq, Syria,Turkey","otherGeospatial":"Zagros Fold Belt","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n 36,\n 36\n ],\n [\n 36,\n 26\n ],\n [\n 56,\n 26\n ],\n [\n 56,\n 36\n ],\n [\n 36,\n 36\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","contact":"Director, Central Energy Resources Science Center
U.S. Geological Survey
Box 25046, MS-939
Denver, CO 80225-0046
This study addresses a significant gap in understanding the features of the south-central Cascadia subduction zone, a region characterized by complex geologic, tectonic, and seismic transitions both offshore and onshore. Unlike other segments along this margin, this area lacks a 3-D velocity model to delineate its structural and geological features on a fine scale. To address this void, we developed a high-resolution 3-D P-wave velocity model using active source seismic data from ship-borne seismic shots recorded on temporary and permanent onshore seismic stations and ocean-bottom seismometers. Our model shows velocity variations across the region with distinct velocity-depth profiles for the Siletz, Franciscan, and Klamath terranes in the overlying plate. We identified seaward dipping high-velocity static backstops associated with the Siletz and Klamath terranes, situated near the shoreline and further inland, respectively. Regions of reduced crustal velocity are associated with crustal faults. Moreover, there is significant along-strike depth variation in the subducting slab, which is about 4 km deeper near the thick, dense Siletz terrane and becomes shallower near the predominantly less-dense Franciscan terrane. This highlights a sudden tectonic and geologic transition at the southern boundary of the Siletz terrane. Our velocity model also indicates slightly increased hydration, though still minimal, in both the oceanic crust and the upper mantle of the subducting plate compared to other parts of the margin.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2024JB029525","usgsCitation":"Ashraf, A., Hooft, E., Toomey, D., Trehu, A., Nolan, S., Wirth, E.A., and Ward, K.M., 2025, A high-resolution 3-D P-wave velocity structure of the south-central Cascadia subduction zone from wide-angle shore-crossing seismic refraction data: JGR Solid Earth, v. 130, e2024JB029525, 23 p., https://doi.org/10.1029/2024JB029525.","productDescription":"e2024JB029525, 23 p.","ipdsId":"IP-165201","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":487643,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.1029/2024JB029525","text":"External Repository"},{"id":482045,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, United States","state":"British Columbia, California, Oregon, Washington","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -121.05502627728873,\n 50\n ],\n [\n -130,\n 50\n ],\n [\n -130,\n 40\n ],\n [\n -122,\n 40\n ],\n [\n -122,\n 50\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"130","noUsgsAuthors":false,"publicationDate":"2025-02-12","publicationStatus":"PW","contributors":{"authors":[{"text":"Ashraf, Asif","contributorId":350925,"corporation":false,"usgs":false,"family":"Ashraf","given":"Asif","affiliations":[{"id":80428,"text":"Univ. of Oregon","active":true,"usgs":false}],"preferred":false,"id":927325,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hooft, Emilie","contributorId":350929,"corporation":false,"usgs":false,"family":"Hooft","given":"Emilie","affiliations":[{"id":80428,"text":"Univ. of Oregon","active":true,"usgs":false}],"preferred":false,"id":927326,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Toomey, Douglas 0000-0003-2873-4084","orcid":"https://orcid.org/0000-0003-2873-4084","contributorId":206934,"corporation":false,"usgs":false,"family":"Toomey","given":"Douglas","affiliations":[{"id":27574,"text":"UO","active":true,"usgs":false}],"preferred":false,"id":927327,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Trehu, Anne 0000-0002-5349-3289","orcid":"https://orcid.org/0000-0002-5349-3289","contributorId":242894,"corporation":false,"usgs":false,"family":"Trehu","given":"Anne","email":"","affiliations":[{"id":6680,"text":"Oregon State University","active":true,"usgs":false}],"preferred":false,"id":927328,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Nolan, Sarah","contributorId":350932,"corporation":false,"usgs":false,"family":"Nolan","given":"Sarah","affiliations":[{"id":12722,"text":"Cornell University","active":true,"usgs":false}],"preferred":false,"id":927329,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Wirth, Erin A. 0000-0002-8592-4442","orcid":"https://orcid.org/0000-0002-8592-4442","contributorId":207853,"corporation":false,"usgs":true,"family":"Wirth","given":"Erin","middleInitial":"A.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":927330,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ward, Kevin M.","contributorId":206723,"corporation":false,"usgs":false,"family":"Ward","given":"Kevin","email":"","middleInitial":"M.","affiliations":[{"id":7042,"text":"University of Arizona","active":true,"usgs":false}],"preferred":false,"id":927331,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70273044,"text":"70273044 - 2025 - Fine-scale farming features drive resource selection of a small carnivore of conservation concern","interactions":[],"lastModifiedDate":"2025-12-12T16:03:17.137296","indexId":"70273044","displayToPublicDate":"2025-02-12T10:01:25","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1176,"text":"Canadian Journal of Zoology","active":true,"publicationSubtype":{"id":10}},"title":"Fine-scale farming features drive resource selection of a small carnivore of conservation concern","docAbstract":"Anthropogenic factors are accelerating species extinction, with small mammalian carnivores among the most affected. These species play vital ecological roles, yet their conservation needs are often overlooked. Our study focused on the plains spotted skunk (Spilogale interrupta (Rafinesque, 1820)), a small carnivore that has experienced population declines. We hypothesized that their resource selection was influenced by factors expected to influence prey availability, protection from predators, and human activity. We tracked 14 plains spotted skunks in east-central South Dakota, USA, over 2 years during spring and summer. Using mixed-effects logistic regression, we identified seasonal habitat associations. In spring, plains spotted skunks selected areas near farming structures and human development, avoiding high wetland density and crop cover. In summer, they continued to select areas near farming structures and low human development, but also high wetland density and pasture, while avoiding hay bales and crop cover. Our first analysis of the species’ resource use in the Great Plains indicates that plains spotted skunks select habitats with permanent small-scale agricultural features and varying levels of human development across seasons. Our findings suggest that species’ persistence in the region may depend on conservation strategies that account for seasonal planning, habitat heterogeneity, and key agricultural structures.
","language":"English","publisher":"Canadian Science Publishing","doi":"10.1139/cjz-2024-0096","usgsCitation":"White, K.M., Cheeseman, A.E., Stafford, J.D., and Lonsinger, R.C., 2025, Fine-scale farming features drive resource selection of a small carnivore of conservation concern: Canadian Journal of Zoology, v. 103, p. 1-12, https://doi.org/10.1139/cjz-2024-0096.","productDescription":"12 p.","startPage":"1","endPage":"12","ipdsId":"IP-165837","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":497475,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"103","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"White, Kara M.","contributorId":363978,"corporation":false,"usgs":false,"family":"White","given":"Kara","middleInitial":"M.","affiliations":[{"id":5089,"text":"South Dakota State University","active":true,"usgs":false}],"preferred":false,"id":952141,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cheeseman, Amanda E.","contributorId":363980,"corporation":false,"usgs":false,"family":"Cheeseman","given":"Amanda","middleInitial":"E.","affiliations":[{"id":5089,"text":"South Dakota State University","active":true,"usgs":false}],"preferred":false,"id":952142,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stafford, Joshua D. 0000-0001-7590-8708 jstafford@usgs.gov","orcid":"https://orcid.org/0000-0001-7590-8708","contributorId":267260,"corporation":false,"usgs":true,"family":"Stafford","given":"Joshua","email":"jstafford@usgs.gov","middleInitial":"D.","affiliations":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"preferred":true,"id":952143,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lonsinger, Robert Charles 0000-0002-1040-7299","orcid":"https://orcid.org/0000-0002-1040-7299","contributorId":340524,"corporation":false,"usgs":true,"family":"Lonsinger","given":"Robert","email":"","middleInitial":"Charles","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":952144,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70263782,"text":"70263782 - 2025 - Chemical and isotopic fractionation during melt inclusion formation","interactions":[],"lastModifiedDate":"2025-04-17T15:31:17.839087","indexId":"70263782","displayToPublicDate":"2025-02-12T09:51:32","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Chemical and isotopic fractionation during melt inclusion formation","docAbstract":"Melt inclusions are used to study the origin and evolution of magmas. The extent to which they represent equilibrium melt compositions, however, critically hinges on the ratio of crystal growth rate to diffusion rate in melts. If the rate of crystal growth is limited by the supply of nutrients and the dissipation of unwanted components, the trapped melt will be depleted in compatible elements and enriched in incompatible elements. Despite widespread recognition of the potential for melt inclusions to trap disequilibrium compositions, their identification remains a challenge. Here, we demonstrate how stable isotopes provide a solution to this problem. Melt inclusions in basaltic tephra from Kīlauea volcano, Hawai‘i, display Mg isotope fractionation up to 0.49‰ (26Mg/24Mg) relative to bulk rock. These observations indicate that kinetic processes, such as chemical diffusion, are at play, as equilibrium mineral-melt isotope fractionation at high temperatures is an order of magnitude smaller. We propose that the heavy Mg isotopic compositions of the melt inclusions were generated by the faster diffusion and thus preferential incorporation of 24Mg by the growing olivine, leaving the slower diffusant (26Mg) behind. The incompatible elements (e.g., Ca, Ti, and K) are predicted to display similarly large fractionations when boundary layer effects are significant. These findings show that stable isotopes can be a useful tool in identifying disequilibrium compositions in melt inclusions.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/G52248.1","usgsCitation":"da Silva Ricardo, B., Oeser, M., Lynn, K.J., Bennett, N., Chu, X., Henderson, G., Liu, Y., Weyer, S., and Sio, C., 2025, Chemical and isotopic fractionation during melt inclusion formation: Geology, v. 53, no. 4, p. 375-379, https://doi.org/10.1130/G52248.1.","productDescription":"5 p.","startPage":"375","endPage":"379","ipdsId":"IP-164130","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":482385,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"53","issue":"4","noUsgsAuthors":false,"publicationDate":"2025-02-10","publicationStatus":"PW","contributors":{"authors":[{"text":"da Silva Ricardo, Bruna","contributorId":351234,"corporation":false,"usgs":false,"family":"da Silva Ricardo","given":"Bruna","affiliations":[{"id":7044,"text":"University of Toronto","active":true,"usgs":false}],"preferred":false,"id":928255,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Oeser, Martin","contributorId":351235,"corporation":false,"usgs":false,"family":"Oeser","given":"Martin","affiliations":[{"id":34332,"text":"Leibniz Universitat Hannover","active":true,"usgs":false}],"preferred":false,"id":928256,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lynn, Kendra J. 0000-0001-7886-4376","orcid":"https://orcid.org/0000-0001-7886-4376","contributorId":290327,"corporation":false,"usgs":true,"family":"Lynn","given":"Kendra","email":"","middleInitial":"J.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":928257,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bennett, Neil","contributorId":351236,"corporation":false,"usgs":false,"family":"Bennett","given":"Neil","affiliations":[{"id":7044,"text":"University of Toronto","active":true,"usgs":false}],"preferred":false,"id":928258,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Chu, Xu","contributorId":351237,"corporation":false,"usgs":false,"family":"Chu","given":"Xu","affiliations":[{"id":7044,"text":"University of Toronto","active":true,"usgs":false}],"preferred":false,"id":928259,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Henderson, Grace C. 0000-0001-9542-6888","orcid":"https://orcid.org/0000-0001-9542-6888","contributorId":328973,"corporation":false,"usgs":false,"family":"Henderson","given":"Grace","middleInitial":"C.","affiliations":[{"id":78543,"text":"Student contractor to the USGS","active":true,"usgs":false}],"preferred":false,"id":928260,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Liu, Y.","contributorId":127400,"corporation":false,"usgs":false,"family":"Liu","given":"Y.","email":"","affiliations":[{"id":6940,"text":"State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Global Change and Earth System Science, Beijing Normal University, Beijing, China","active":true,"usgs":false}],"preferred":false,"id":928261,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Weyer, Stephan","contributorId":351241,"corporation":false,"usgs":false,"family":"Weyer","given":"Stephan","affiliations":[{"id":34332,"text":"Leibniz Universitat Hannover","active":true,"usgs":false}],"preferred":false,"id":928263,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Sio, Corliss Kin I","contributorId":351242,"corporation":false,"usgs":false,"family":"Sio","given":"Corliss Kin I","affiliations":[{"id":7044,"text":"University of Toronto","active":true,"usgs":false}],"preferred":false,"id":928264,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ,{"id":70263506,"text":"70263506 - 2025 - Note to banders, February 2025","interactions":[],"lastModifiedDate":"2025-02-13T15:52:12.588283","indexId":"70263506","displayToPublicDate":"2025-02-12T09:51:21","publicationYear":"2025","noYear":false,"publicationType":{"id":25,"text":"Newsletter"},"publicationSubtype":{"id":30,"text":"Newsletter"},"seriesTitle":{"id":13451,"text":"Memo to All Banders (MTAB)","active":true,"publicationSubtype":{"id":30}},"title":"Note to banders, February 2025","docAbstract":"Note to All Banders was a special extra communication with more urgent information relevant to banders. This Note to All Banders was sent to U.S. bird banders on February 12, 2025. This note includes a review of the 2024 successes at the Bird Banding Laboratory. Throughout 2024, the BBL increased communication, engagement, and collaboration, within the Eastern Ecological Science Center, U.S. Geological Survey, and with organization partners and local communities. This Note to Banders highlights these efforts in more detail. ","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Celis-Murillo, A., 2025, Note to banders, February 2025: Memo to All Banders (MTAB), 4 p.","productDescription":"4 p.","ipdsId":"IP-175137","costCenters":[{"id":50464,"text":"Eastern Ecological Science Center","active":true,"usgs":true}],"links":[{"id":482030,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":482007,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.usgs.gov/media/files/note-banders-february-2025"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Celis-Murillo, Antonio 0000-0002-3371-6529","orcid":"https://orcid.org/0000-0002-3371-6529","contributorId":237851,"corporation":false,"usgs":true,"family":"Celis-Murillo","given":"Antonio","email":"","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":927211,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70269042,"text":"70269042 - 2025 - Accounting for non-random samples with distance sampling to estimate population density","interactions":[],"lastModifiedDate":"2025-07-15T14:30:48.364427","indexId":"70269042","displayToPublicDate":"2025-02-12T09:28:01","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2163,"text":"Journal of Applied Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Accounting for non-random samples with distance sampling to estimate population density","docAbstract":"