122 datasets found
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Federal
U-Pb age determinations of uraninite by electron microprobe analyses of ore samples from two solution-collapse breccia pipe uranium deposits, Grand Canyon region, northwest Arizona, USA
Department of the Interior —
This data release compiles the electron microprobe spot analyses of U, Th, and Pb concentrations in uraninite (U oxide) particles, and corresponding calculated age... -
Federal
Potential Explanatory Factors for Groundwater Quality in the Northern Sierra Nevada Foothills Domestic-Aquifer Assessment Study Units, 2015-2017: California GAMA Priority Basin Project
Department of the Interior —
This data release codifies and attributes explanatory factors that could potentially impact groundwater quality at 142 groundwater sites (wells or developed springs)... -
Federal
Radiocarbon age dating of biological material from cores collected off central California in 1999, 2006, and 2019
Department of the Interior —
Results of radiocarbon age dating of planktic and benthic foraminifera collected from cores obtained in 1999, 2006, and 2019 offshore central California in the... -
Federal
Radiometric Ages and Descriptive Data for Late Holocene Acropora spp. Corals From Dry Tortugas National Park
Department of the Interior —
This data release compiles radiometric data, photographs, and descriptive collection information (location, elevation, etc.) for late Holocene sub-fossil Acropora... -
Federal
Late Pleistocene coral ages and elevations from south Florida
Department of the Interior —
This data release compiles Uranium-series (U-series) data and descriptive collection information (such as sample/core identifier, location, elevation, etc.) for late... -
Federal
St. Petersburg Coastal and Marine Science Center's Geologic Core and Sample Database Metadata
Department of the Interior —
This database contains a comprehensive inventory of geologic (coral, coral reef, limestone, and sediment) cores and samples collected, analyzed, published, and/or... -
Federal
USGS Geochron: A Database of Geochronological and Thermochronological Dates and Data (ver. 2.0, September 2023)
Department of the Interior —
USGS Geochron is a database of geochronological and thermochronological dates and data. The data set contains published ages, dates, analytical information, sample... -
Federal
16CCT03_metadata: Sedimentary Data From Grand Bay, Alabama/Mississippi, 2014-2016
Department of the Interior —
This data release is an archive of sedimentary field and laboratory analytical data collected in Grand Bay, Alabama/Mississippi from 2014-2016 by scientists from the... -
Federal
Collection, analysis, and age-dating of sediment cores from mangrove wetlands in San Juan Bay Estuary, Puerto Rico, 2016
Department of the Interior —
The San Juan Bay Estuary, Puerto Rico, contains mangrove forests that store significant amounts of organic carbon in soils and biomass. There is a strong urbanization... -
Federal
Elemental chemistry, radionuclides, and charcoal in watershed soil and reef sediment at Olowalu, Maui, 2022
Department of the Interior —
Fine-sediment elemental chemistry, short-lived cosmogenic radionuclides (Beryllium-7, Cesium-137, and Lead-210), charcoal counts, and total organic carbon contents... -
Federal
Geochemical analysis of authigenic carbonates and chemosynthetic mussels at Atlantic Margin seeps (ver. 2.0, March 2019)
Department of the Interior —
Isotopic analyses of authigenic carbonates and methanotrophic deep-sea mussels, Bathymodiolus sp., was performed on samples collected from seep fields in the... -
Federal
Collection, Analysis, and Age-Dating of Sediment Cores from Salt Marshes on the South Shore of Cape Cod, Massachusetts, From 2013 Through 2014
Department of the Interior —
The accretion history of fringing microtidal salt marshes located on the south shore of Cape Cod, Massachusetts, was reconstructed from sediment cores collected in... -
Federal
Uranium-Thorium Ages for Late Holocene Corals from the Southeast Florida Nearshore Ridge Complex
Department of the Interior —
This data release (Modys and others, 2023a) compiles Uranium-Thorium (U-Th) dating data for late Holocene coral samples collected from the Nearshore Ridge Complex... -
Federal
Isotopic data for soil cores collected during 2000 from Sand Lake National Wildlife Refuge, South Dakota
Department of the Interior —
A study was conducted to assess the vertical accretion of sediment in the Mud Lake impoundment of Sand Lake National Wildlife Refuge, located in Brown County, South... -
Federal
U-Pb zircon data for: Upper Triassic and Jurassic sedimentary rocks from Sonora, MX
Department of the Interior —
This laser ablation ICPMS U-Pb zircon data set supports stratigraphic, biostratigraphic and age interpretations of the of the fossil-plant-bearing El Gameño Formation... -
Federal
Electron microprobe and 40Ar/39Ar isotopic data from west-central New Hampshire
Department of the Interior —
This dataset accompanies planned publication 'Unmixing multiple metamorphic muscovite age populations with powder X-ran diffraction and 40Ar/39Ar analysis'. The... -
Federal
U-Pb zircon geochronology and whole rock geochemistry data for Auminzatau and Kuldjuktau mountains, Kyzylkum desert, Uzbekistan
Department of the Interior —
These U-Pb zircon geochronology and whole rock geochemistry data were collected as part of a bilateral campaign of the U.S. Geological Survey (USGS) with the... -
Federal
U-Pb Isotope Geochronology Data and Geochemical Analyses of Selected Rocks from the Seldovia Quadrangle, Southcentral Alaska
Department of the Interior —
This dataset contains U-Pb isotopic data and associated ages of zircons within the lithologic framework of igneous, metaigneous, and metasedimentary rocks collected... -
Federal
Geophysical properties, geochronologic, and geochemical data of sediment cores collected from San Pablo Bay, California, October 17-20, 2016
Department of the Interior —
Geophysical properties (P-wave velocity, gamma ray density, and magnetic susceptibility), geochronologic (radiocarbon, excess Lead-210, and Cesium-137), and... -
Federal
South Florida Holocene coral sea-level database for samples collected from 1977 to 2017
Department of the Interior —
Holocene-aged coral samples from the south Florida region were extensively characterized to create a new database of verified sea-level data. The samples were...
122 datasets found