Abstract

Shoot material of Phacelia sericca, Oxytropis campestris, and Sedum Lanceolatum collected at intervals across two mineralized areas were analyzed for gold and arsenic. Elevated values of gold were determined in plants from specific sites which were often accompanied by high arsenic concentrations. As determined by neutron activation analysis, the highest gold concentrations (as much as 55 ppb) were found in the cyanogenic species P. sericca. This gold was lost by dry ashing the plant at 550 degrees C. It was concluded that biogeochemical prospecting for gold is feasible.

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