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Federal
NCEI Marine Geology Data Archive
National Oceanic and Atmospheric Administration, Department of Commerce —
Marine Geologic data compilations and reports in the NCEI archive are from academic and government sources around the world. Over ten terabytes of analyses,... -
Federal
Experimental streams - Recolonization of the Cedar River, WA by Pacific salmon
National Oceanic and Atmospheric Administration, Department of Commerce —
The objective of this study is to quantify population, community, and ecosystem level changes as a result of salmon recolonization of the Cedar River, WA above... -
State
Zircon U-Pb and 40Ar/39Ar results from dikes collected within the Bruin Bay fault zone, lower Cook Inlet
State of Alaska —
This data release presents zircon U-Pb LA-ICP-MS geochronology from igneous rocks exposed in a coastal exposure at Ursus Head, Iliamna C-2 Quadrangle. Sills and dikes... -
Federal
Water-Quality and Borehole Geophysical Data Associated with Uranium Background Concentrations at the Homestake Superfund Site near Milan, New Mexico: 2016 (ver. 1.2)
Department of the Interior —
The datasets contained herein were collected as part of a cooperative U.S. Geological Survey (USGS) and U.S. Environmental Protection Agency (EPA) project entitled... -
Federal
Data for Occurrence and Sources of Lead in Private Wells, Sturbridge, Massachusetts
Department of the Interior —
Lead (Pb) occurrence and sources and aqueous geochemistry were assessed in private wellhead and tap water at a targeted area of concern for possible exceedances and... -
State
Zircon U-Pb and 40Ar/39Ar results from dikes collected within the Bruin Bay fault zone, lower Cook Inlet
State of Alaska —
This data release presents 40Ar/39Ar step-heating geochronology results from rocks collected roughly 7 km southwest of Contact Point, Iliamna B-3 Quadrangle. Samples... -
Federal
Can Preserved Museum Specimens Be Used to Reconstruct Fish Mercury Burden and Sources through Time?
U.S. Environmental Protection Agency —
Supporting information for "Ryan F. Lepak, Sarah E. Janssen, Jacob M. Ogorek, Casey B. Dillman, Joel C. Hoffman, Michael T. Tate, and Peter B. McIntyre Environmental... -
Federal
Fluid Inclusion Noble Gas Data from Goldfield and Tonopah Epithermal Au-Ag Deposits
Department of the Interior —
Twenty-five ore and gangue mineral separates from the Miocene-age Goldfield and Tonopah epithermal Au-Ag deposits in southwestern Nevada were analyzed to determine... -
Federal
Calculated Diffusivities for Water Isotopologues in Carbon Dioxide, Nitrogen, and the Atmosphere of Mars, and for Methane Isotopologues in Nitrogen Representing the Atmosphere of Titan
National Institute of Standards and Technology —
Values are computed for the dilute-gas diffusivity of water isotopologues in N2, CO2, and their mixture at a composition representing the atmosphere of Mars, for... -
State
U-Pb detrital zircon geochronology of Cretaceous-Cenozoic sedimentary rocks in the Ladue River-Mount Fairplay area, Alaska
State of Alaska —
This report presents U-Pb detrital zircon dates from three sedimentary rock samples collected in the eastern Tanacross Quadrangle during 2019 geologic mapping by the... -
State
40Ar/39Ar geochronology data from the Tanacross and Eagle quadrangles, Alaska
State of Alaska —
40Ar/39Ar geochronology data from the Tanacross and Eagle quadrangles, Alaska, Raw Data File 2023-23, provides 40Ar/39Ar geochronology data from igneous and... -
State
Zircon U-Pb results from the eastern Moran area, Tanana B-6 and Melozitna B-1 quadrangles, Alaska
State of Alaska —
Raw Data File 2023-15,Zircon U-Pb results from the eastern Moran area, Tanana B-6 and Melozitna B-1 quadrangles, Alaska, Raw Data File 2023-15, U-Pb geochronologic... -
Federal
Biogenic Silica and Carbon 14 Age Dates from Lake Victoria Cruise V95 Cores
National Oceanic and Atmospheric Administration, Department of Commerce —
The LLO operates in conjunction with the Limnological Research Center (LRC) in working towards fulfilling the objectives of the International Decade for the East... -
Federal
Isotopes - Recolonization of the Cedar River, WA by Pacific salmon
National Oceanic and Atmospheric Administration, Department of Commerce —
The objective of this study is to quantify population, community, and ecosystem level changes as a result of salmon recolonization of the Cedar River, WA above... -
Federal
Fish abundance, composition, distribution - Recolonization of the Cedar River, WA by Pacific salmon
National Oceanic and Atmospheric Administration, Department of Commerce —
The objective of this study is to quantify population, community, and ecosystem level changes as a result of salmon recolonization of the Cedar River, WA above... -
Federal
EPA oyster project: nitrogen in water. - Transport and fate of nutrient and pathogen loadings into nearshore Puget Sound: consequences for shellfish growing areas
National Oceanic and Atmospheric Administration, Department of Commerce —
This project seeks to develop and apply an assessment of shellfish growing area (SGA) vulnerability to closures caused by watershed- and marine-derived pathogens.... -
Federal
Aqueous Rare Earth Elements, Concentration, and Stable Isotopes in Deep Basin Brines, Wyoming
Department of Energy —
Presentation given to National Groundwater Association meeting on deep basin brines. This presentation discusses why produced waters are being observed, the... -
Federal
Sulfide Electron Microprobe Analyses and Petrography of Mineralized Samples from the Stratabound Sheep Creek Sediment-Hosted Zn-Pb-Ag-Sn Prospect, and SHRIMP U–Pb Zircon Data for Metaigneous Rocks in the Bonnifield Mining District, Healy Quadrangle, Alaska
Department of the Interior —
This data set contains 99 electron microprobe analyses of cassiterite, chalcopyrite, galena, pyrite, sphalerite, and tetrahedrite from seven Sheep Creek drill core... -
Federal
New U-Pb Geochronology and Geochemistry of Paleozoic Metaigneous Rocks from Western Yukon and Eastern Alaska
Department of the Interior —
This data release contains three tables of U-Pb zircon isotopic data generated from analyses of 40 metaplutonic and metavolcanic rocks from the Yukon-Tanana Upland of...