National Geochronological Database
Entry ID: USGS_OFR_2003_236

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Summary
Abstract: The National Geochronological Data Base (NGDB) was established by the United
States Geological Survey (USGS) to collect and organize published isotopic
(also known as radiometric) ages of rocks in the United States. The NGDB
(originally known as the Radioactive Age Data Base, RADB) was started in 1974.
A committee appointed by the Director of the USGS was given the mission to
investigate the ... View entire text
Geographic Coverage
Spatial coordinates   
  N: 76.63   S: 13.71   E: -61.48   W: -177.1

Data Set Citation
Dataset Originator/Creator: Jan Sloan, Christopher D. Henry, Melanie Hopkins, and Steve Ludington
Dataset Title: National Geochronological Database
Dataset Series Name: U.S. Geological Survey Open-File Report
Dataset Release Date: 2003
Dataset Publisher: U.S. Geological Survey
Version: 1.0
Online Resource: http://geopubs.wr.usgs.gov/open-file/of03-236/
Data Set Progress
COMPLETE
Originating Center
Data Center
Publications-Western Region,Geological Division, U.S. Geological Survey, U.S. Department of the Interior Supplemental Info
Data Center URL: http://geopubs.wr.usgs.gov/

Data Center Personnel
Name: CAROLYN A. DONLIN
Phone: 650-329-5015
Fax: 650-329-5119
Email: cdonlin at usgs.gov
Contact Address:
U.S. Geological Survey
Geology Division
345 Middlefield Road
City: Menlo Park
Province or State: California
Postal Code: 94025
Country: USA
Distribution
Distribution Media: Online
Fees: No fees
Personnel
Role: DIF AUTHOR
Role: TECHNICAL CONTACT
Email: ludington at usgs.gov
Publications/References
Marshall, Brian D., 1993, Conversion of the Radiometric Age Data Bank (RADB) to the National Geochronological Data Base (NGDB): U.S. Geological Survey Open-File Rep., 93-336, 76 p.
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2005-02-23
Last DIF Revision Date: 2005-03-23
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