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Publication Extents

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Zirconium and hafnium in the southeastern Atlantic States
J.B. Mertie Jr.
1958, Bulletin 1082-A
The principal source of zirconium and hafnium is zircon, though a minor source is baddeleyite, mined only in Brazil. Zircon is an accessory mineral in igneous, metamorphic, and sedimentary rocks, but rarely occurs in hardrock in minable quantities. The principal sources of zircon are therefore alluvial deposits, which are mined...
Exploration for uranium-vanadium deposits by the U.S. Geological Survey in the Club Mesa area, Uravan district, Montrose County, Colorado
R. L. Boardman, L. R. Litsey, H. E. Bowers
1958, Miscellaneous Field Studies Map 169
The Club Mesa area is in the western part of the Uravan district, Montrose County, Colo.; it covers about 6 square miles in Tps. 47 and 48 N., R. 17 W., New Mexico principal meridian. (See index map.) The area is immediately west of Uravan, Colo., and is bounded approximately...