USGS - science for a changing world

Mineral Resources On-Line Spatial Data

Interactive maps > Data download > K/Ar ages from the National Geochronological Database

Database field categories

CategoryNumber
of fields
Sample identification2
Geographic location5
Processing information5
Sample characteristics2
Analytic result6

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://tin.er.usgs.gov/karage/category-index.php
Page Contact Information: pschweitzer@usgs.gov
Page Last modified: 11:56 on 18-Oct-2007