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  3. USGS Geochron: A Database of Geochronological and Thermochronological Dates and Data

USGS Geochron: A Database of Geochronological and Thermochronological Dates and Data

Dates

Publication Date
Time Period
2022-12-13

Citation

Hillenbrand, I.W., Thomson, K.D., Morgan, L.E., Gilmer, A.K., Dombrowski, A.D., Warrell, K.F., Malone, J.R., Souders, A.K., Hudson, A.M., Cosca, M.A., Paces, J.B., Thompson, R.A., and Park, A.J., 2023, USGS Geochron: A Database of Geochronological and Thermochronological Dates and Data: U.S. Geological Survey data release, https://doi.org/10.5066/P9RZNPIF.

Summary

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, and luminescence. 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 included.

Contacts

Point of Contact :
Leah E Morgan
Originator :
Ian W Hillenbrand, Kelly D Thomson, Leah E Morgan, Amy K Gilmer, Allison D Dombrowski, Kathleen F Warrell, Joshua R Malone, Amanda K Souders, Adam M Hudson, Michael A Cosca, James B Paces, Ren A Thompson, Andy J Park
Metadata Contact :
Leah E Morgan
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Geosciences and Environmental Change Science Center
USGS Mission Area :
Core Science Systems

Attached Files

Click on title to download individual files attached to this item.

Metadata_Geochron.xml
Original FGDC Metadata
View 		17.95 KB application/fgdc+xml
ar40ar39_USGS_data_release.csv
“40Ar/39Ar Geochronological Data” 		5.83 MB text/csv
Data_Dictionary.csv
“Data Dictionary” 		126.17 KB text/csv
fissiontrack_USGS_data_release.csv
“Fission Track Geochronological Data” 		636.77 KB text/csv
kar_USGS_data_release.csv
“K-Ar Geochronological Data” 		5.98 MB text/csv
luhf_USGS_data_release.csv
“Lu-Hf Geochronological Data” 		14.82 KB text/csv
luminescence_USGS_data_release.csv
“Luminescence Geochronological Data” 		84.03 KB text/csv
rbsr_USGS_data_release.csv
“Rb-Sr Geochronological Data” 		3.04 MB text/csv
samples_USGS_data_release.csv
“USGS Geochron Database Samples” 		18.02 MB text/csv
smnd_USGS_data_release.csv
“Sm-Nd Geochronological Data” 		31.52 KB text/csv
uthpbinsitu_USGS_data_release.csv
“U-Th-Pb In-situ Geochronological Data” 		64.37 MB text/csv
uthpbtims_USGS_data_release.csv
“U-Th-Pb TIMS Geochronological Data” 		7.44 MB text/csv
GeochronMap.png thumbnail 3.42 MB image/png

Purpose

The primary purpose of the USGS Geochron Database is to organize and serve all USGS-generated geochronological data to key stakeholders, scientists, and the public. This data set is applicable to answering fundamental Earth Science questions that require an understanding of the ages of key geologic events and units and the rates of geologic processes. The database is supported by the National Cooperative Geologic Mapping Program’s National Geologic Map Database project and the Geologic Framework of the Intermountain West project and will be managed and served in accordance with the National Geologic Mapping Act of 1992 and its Reauthorizations. The data set as a whole will be updated and expanded semi-annually.
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  • USGS Data Release Products

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Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9RZNPIF

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