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A preliminary report on methods of determining the age of Colorado plateau carnotite

March 6, 1950
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Four methods of dating Colorado Plateau carnotite have been examined and evaluated: mineralogic methods, radioactive-equilibrium methods, lead-uranium-ratio methods, and lead-isotope methods. The data on 12 high-grade samples, from a suite of 50 representative carnotite ores, are presented.

Citation Information

Publication Year 1950
Title A preliminary report on methods of determining the age of Colorado plateau carnotite
DOI 10.3133/tei108
Authors Lorin Rollins Stieff, M.N. Girhard, T. W. Stern
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Trace Elements Investigations
Series Number 108
Index ID tei108
Record Source USGS Publications Warehouse