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National Geologic Map Database
General Information
- Title: USGS Geochron: A Database of Geochronological and Thermochronological Dates and Data (ver. 4.0, May 2025)
- Author(s): Hillenbrand, I.W., Thomson, K.D., Morgan, L.E., Gilmer, A.K., Engle, Z.T., Slawson, J., Dombrowski, A., Warrell, K.F., Malone, J., Souders, A.K., Hudson, A.M., Cosca, M.A., Paces, J.B., Thompson, R.A., and Park, A.J.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Data Release
- Publication Date: 2024
- Cross Section: None
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- Corrections to this entry?
* See base map disclaimer below
Additional Resources
- Links and Downloads:
- Publication
- For more information, please contact:
- U.S. Geological Survey
- USGS Information Services
- Box 25286
- Denver, CO 80225
- Phone: (303) 202-4700 or 1-888-ASK-USGS
- Fax: (303) 202-4710
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.