Thorium and rare-earth minerals in Powderhorn district, Gunnison County, Colorado
By: by J. C. Olson and S. R. Wallace.
Contributors: Wallace, Stewart Raynor, 1919-; U.S. Atomic Energy Commission.
Series: Geological Survey bulletin -- 1027-O; A contribution to economic geology; Contributions to economic geology
Publisher: U.S. G.P.O.
Published: 1956
Place of publication: Washington
Language: eng
Number of pages: 723
Subjects: Geology -- Colorado -- Gunnison County.; Thorium ores -- Colorado -- Gunnison County.; Rare earths -- Colorado -- Gunnison County.; Mineralogy -- Colorado -- Gunnison County.; Geology, Economic -- Colorado -- Gunnison County.; Rocks, Igneous -- Colorado -- Gunnison County.; Rocks, Metamorphic -- Colorado -- Gunnison County.; Veins (Geology) -- Colorado -- Gunnison County.; Rocks, Sedimentary -- Colorado -- Gunnison County.; Rocks, Carbonate -- Colorado -- Gunnison County.
Other titles: Thorium and rare-earth minerals in the Powderhorn district, Gunnison County, Colorado
Notes: Maps on two folded plates in pocket (plates 55 and 56).

Caption title: Thorium and rare-earth minerals in the Powderhorn district, Gunnison County, Colorado.

"This report concerns work done on behalf of the U.S. Atomic Energy Commission and is published with the permission of the Commission"--t.p.

Includes bibliographical references (p. 721) and index.