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作者 Olson, J. C. (Jerry Chipman), 1917-2013.

標題 Thorium and rare-earth minerals in Powderhorn district, Gunnison County, Colorado / by J.C. Olson and S.R. Wallace.

出版資料 Washington [D.C.] : U.S. G.P.O., 1956.

複本

說明 p. iv, 693-723 : ill., maps ; 24 cm. + 2 folded col. maps in case.
系列 Contributions to economic geology
Geological Survey bulletin ; 1027-O
Notes "This report concerns work done on behalf of the U.S. Atomic Energy Commission ..."
With: Bound With: Lithium resources of North America, by James J. Norton and Dorothy McKenney Schlegel.
Bibliography Includes bibliographical references (p. 721) and index.
主題 Thorium ores -- Colorado -- Gunnison County.
Rare earth metals.
添加作者 Wallace, S. R.
U.S. Atomic Energy Commission.
政府出版物號碼 I 19.3:1027-O