Algebraic and graphic methods for evaluating discordant lead-isotope ages
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Professional Paper↗
Geology topics
Lorin Rollins Stieff
Publications and source records attributed to Lorin Rollins Stieff.
Radium-uranium equilibrium and radium-uranium ages of some Colorado Plateau secondary minerals
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Trace Elements Investigations↗
Coffinite, a uranous silicate with hydroxyl substitution : a new mineral
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Trace Elements Investigations↗
A preliminary determination of the age of some uranium ores of the Colorado Plateaus by the lead-uranium method
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Circular↗
A preliminary determination of the age of some Colorado Plateau uranium ores by the lead-uranium method
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Trace Elements Investigations↗
An air concentrator for very low grade Colorado Plateau uranium ores
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Trace Elements Investigations↗
The lead-uranium ages of some uraninite specimens from Triassic and Jurassic sedimentary rocks of the Colorado Plateau
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Trace Elements Investigations↗
Theoretical alpha star populations in loaded nuclear emulsions
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Trace Elements Investigations↗
A preliminary report on methods of determining the age of Colorado plateau carnotite
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.
Colorado↗