TY - BOOK AU - Fischer,Richard Philip AU - Fisher,Frederick S. TI - Interpreting pan-concentrate analyses of stream sediments in geochemical exploration for gold, T2 - United States. Geological Survey. Circular AV - QE75 .C5 no. 592 U1 - 622/.18/41 PY - 1968/// CY - Washington KW - Gold ores KW - San Juan Mountains KW - Geochemical prospecting ER -