Geochemical prospecting with heavy-mineral concentrates used to locate a tungsten deposit

Review of the use of magnetic concentrates in geochemical exploration

“…Chemical analysis of heavy minerals, either as the raw concentrate or as some fraction of the raw concentrate, including hand-picked grains, has rapidly become an accepted procedure in geochemical exploration, especially where stream sediments may be contaminated by aeolian debris (Theobald and Thompson, 1959;Theobald and others, 1967;Boyle, 1968;deGrys, 1970;Neuerburg and others, 1971;Bugrov, 1974;duBray, 1981;Overstreet and others, 1984). Mechanical concentration ratios obtained by panning enhance geochemical anomalies and can bring the abundances of sparsely present elements within the detection limits of the method used for analysis (Goni, 1966;Beus and Grigorian, 1977).…”