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Re-Os Geochronologic Data for Porphyry Deposits in the Yukon-Tanana Upland, E...
Rhenium-osmium (Re-Os) geochronology of molybdenite provides a tool to directly date mineralizing events in hydrothermal systems. In the Yukon-Tanana upland of eastern Alaska,... -
U-Pb Isotopic Data and Ages of Detrital Zircon and Volcanic Zircon Grains fro...
This dataset contains U-Pb isotopic data and associated ages of zircon grains from 27 sedimentary samples and one volcanic ash sample from the Cretaceous Torok and Nanushuk... -
Geochemical and isotopic compositions of stream sediment, parent rock, and ne...
Geochemical and isotopic compositions were determined in stream sediment and parent rocks collected in April 2017 and June 2017 and in nearshore sediment collected bimonthly in... -
Data release for cosmogenic beryllium-10 exposure ages of boulders deposited ...
This report summarizes the geochronologic results from boulders deposited on glacial moraines in the southern Sawatch and Sangre de Cristo Mountains of south-central Colorado.... -
Static chamber gas fluxes and carbon and nitrogen isotope content of age-date...
Coastal wetlands are major global carbon sinks; however, quantification of carbon flux can be difficult in these heterogeneous and dynamic ecosystems. To characterize spatial... -
Backscatter electron (BSE) and panchromatic cathodoluminescent (CL) imagery o...
Backscatter electron (BSE) and panchromatic cathodoluminescent (CL) imagery of minerals from samples dated by 40Ar/39Ar are for the study of the Butte mining district, U.S.A.... -
Field and Laboratory Data for the Sheep Creek and Arentson Gulch Trench Sites...
This data release includes field observations and laboratory data for two trenches excavated across the Lost River fault zone, Idaho, in September 2019. The field sites include... -
Collection, analysis, and age-dating of sediment cores from Herring River wet...
The Herring River estuary in Wellfleet, Cape Cod, Massachusetts, has been tidally restricted for more than a century by a dike constructed near the mouth of the river. Upstream... -
Collection, analysis, and age-dating of sediment cores from mangrove and salt...
Coastal wetlands in Tampa Bay, Florida, are important ecosystems that deliver a variety of ecosystem services. Key to ecosystem functioning is wetland response to sea-level rise... -
South Florida Holocene coral sea-level database for samples collected from 19...
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 originally... -
U-series isotope data used to date a 130,000-year-old archaeological site in ...
This dataset includes tables with physical information and isotopic data that are used to calculate uranium-series ages (230Th/U method) and initial 234U/238U activity ratios on... -
The absolute and relative composition of Holocene reef cores collected betwee...
This data release provides a summary of the absolute percent composition of all recovered material and relative percent composition of coral taxa in the Holocene-aged intervals... -
Collection, Analysis, and Age-Dating of Sediment Cores from Salt Marshes, Rho...
The accretion history of fringing salt marshes in Narragansett Bay, Rhode Island, was reconstructed from sediment cores. Age models, based on excess lead-210 and cesium-137... -
Electron microprobe and 40Ar/39Ar isotopic data from west-central New Hampshire
This dataset accompanies planned publication 'Unmixing multiple metamorphic muscovite age populations with powder X-ran diffraction and 40Ar/39Ar analysis'. The 40Ar/39Ar and... -
Geochemistry time series and growth parameters from Tutuila, American Samoa c...
Geochemical analysis (including age-corrected radiocarbon stable isotopes, and elemental composition) and growth parameters (including calcification rate, density, and extension... -
Radiometric ages and descriptive data for Holocene corals from southeast Florida
This data release compiles descriptive information (location, water depth, etc.) and radiometric ages from corals collected through the Southeast Florida Continental Reef Tract... -
Radiocarbon dating of deep-sea black corals collected off the southeastern Un...
Results of radiocarbon dating of deep-sea (500 m to 700 m) black corals are presented. These corals were collected off the southeastern United States as part of the Southeastern... -
Mineralogy, chemistry and isotope composition of silica sinter deposits from ...
Sample Analyses: Four samples of silica sinter from Giant and Castle Geysers compo sedof opal-A or opal-A/C were analyzed for U-Th isotopes at USGS laboratories in Denver, CO... -
Geochemistry of fine-grained sediment in Bellingham Bay, Nooksack River, and ...
Elemental compositions are reported for the fine fraction of surface sediments from Bellingham Bay (June 2017 and March 2019) and in the fine fraction of streambank sediment... -
U-Pb and 40Ar/39Ar Geochronologic Data for Selected Rocks from the Western Al...
This dataset includes four tables with isotopic data and ages for selected igneous bedrock samples collected in 2001 through 2003 from the Western Alaska Range, southcentral...