David Hedlund Jerry Olson (2 results)

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Geologic Map of the Iris NW Quadrangle, Gunnison and Saguache Counties, Colorado (United States Geological Survey Geologic Quadrangle Maps of the United States, GQ-1286).
David C. Hedlund and Jerry C. Olson.
Published by United States Geological Survey., 1976
- Map
Seller: Eryops Books, Stephenville, TX, U.S.A.Eryops Books
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Condition: Used - Very good
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No Binding. Condition: Very Good. Large folded sheet consisting of a geologic map superposed on topographic contours, three cross-sections, correlation of map units, a columnar section with description of units, and references cited; in printed envelope; ex-corporate library; in very good condition. Map.
Alkalic Rocks and Resources of Thorium and Associated Elements in the Powderhorn District, Gunnison County, Colorado: Geological Survey Professional Paper 1049-C
Olson, Jerry C., and Hedlund, David C.
Published by United States Government Printing Office, Washington, 1981
Seller: Crossroads Books, Reno, NV, U.S.A.Crossroads Books
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Condition: Used - Near fine
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Condition: near fine. An evaluation of thorium resources, their distribution, and geologic relationships. DR3. stapled binding, 11.25" tall, 34 pages.