Utilization of humus-rich forest soil (mull) in geochemical exploration for gold,

Utilization of humus-rich forest soil (mull) in geochemical exploration for gold, by Gary C. Curtin [and others] - Washington [U.S. Govt. Print. Off.] 1968. - iii, 11 p. illus., maps. 26 cm.

Bibliography: p. 4.

gs 68000239 //r852


Geochemical prospecting.
Gold ores--Colorado--Empire region.

QE75 / .C5 no. 562

622/.18/41

Powered by Koha