Filters: partyWithName: Ian W Hillenbrand (X) > partyWithName: U.S. Geological Survey - ScienceBase (X) > partyWithName: Amanda K Souders (X)

Filters Date Range Past year (1) Past month (1) Past week (1) Past day (0) Custom range... To   Search Extensions ArcGIS Service Definition (1) Types Map Service (2) ArcGIS REST Map Service (1) ArcGIS Service Definition (1) Downloadable (1) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Contacts Amy K Gilmer Geology, Geophysics, and Geochemistry Science Center U.S. Geological Survey Leah E Morgan Core Science Systems More... Categories Data (2) Tag Types Theme (2) Place (1) Harvest Set (2) USGS Scientific Topic Keyword (1) Tag Schemes Geochronology (1) USGS Thesaurus (1) Common geographic areas (1) ISO 19115 Topic Category (2) View Results as: JSON ATOM CSV

USGS Geochron: A Database of Geochronological and Thermochronological Dates and Data (ver. 3.0, May 2024) USGS Geochron is a database of geochronological and thermochronological dates and data. The data set contains published ages, dates, analytical information, sample metadata including location, and source citations. The following analytical techniques are represented in the data set: 40Ar/39Ar, K-Ar, U-Th-Pb, Sm-Nd, Rb-Sr, Lu-Hf, fission track, luminescence, U-series, (U-Th)/He, Re-Os, 10Be and 26Al cosmogenic, and radiocarbon. This data set incorporates data previously hosted in the National Geochronological Database (Sloan and others, 2003), as well as data from published journal articles and ScienceBase data releases. These data are primarily from the United States, but data from other parts of the world are also... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: (U-Th)/He, 40Ar/39Ar, Fission track, Geochronology, Geochronology, All tags... K-Ar, Lu-Hf, Optically stimulated luminescence, Radiometric dating, Re-Os, Sm-Nd, Thermochronology, U-Th-Pb, U-series, USGS Science Data Catalog (SDC), geoscientificInformation, Fewer tags Zircon U-Pb data for Proterozoic rocks in southwestern Colorado and rocks from drill core from Wyoming, Montana, and Nebraska This U.S. Geological Survey (USGS) data release provides U-Pb zircon data and geochronology for Proterozoic rocks in the Needle Mountains of southwestern Colorado and for Proterozoic rocks sampled from drill cores from Wyoming, Montana, and Nebraska. Samples from the Needle Mountains were collected in order to constrain the polyphase tectonic evolution of the area. Drill core samples are part of a larger characterization of the age and geochemical character of basement terranes in the United States. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Colorado, GECSC, GGGSC, Geochemistry, Geologic Framework of the Intermountain West, All tags... Geology Geophysics and Geochemistry Science Center, Geosciences and Environmental Change Science Center, LA-ICP-MS, Montana, NCGMP, Nebraska, Precambrian basement terranes, U-Pb geochronology, US Geological Survey, USGS Science Data Catalog (SDC), Wyoming, geoscientificInformation, Fewer tags