00859cam a2200277 4500 gs 68000301 DLC 20260227111423.0 701203s1968 nvuabc b 00000 eng c gs 68000301 //r87 U.S. Geological Survey Library TN270 .B55 1968 Blanchard, Roland, 1890-1966. Interpretation of leached outcrops. [Reno] MacKay School of Mines, University of Nevada, 1968. xvi, 196 p. illus. (part fold., part col.) maps., port. 29 cm. 7.50 Nevada. Bureau of Mines. Bulletin 66 Bibliography: p. 186-188. Geochemical prospecting Limonite. Mineralogy. Outcrops (Geology) Weathering. Leached outcrops. 30510 30510