ABSTRACT

Bitumens in a former ore deposit in central Scotland contain inclusions of silver, mercury, bismuth and uranium minerals, and are also enriched in gold. The deposit was mined for silver, and the immediate region exhibits gold and mercury anomalies. Thus the metal enrichments in the bitumen are a signature of the regional mineralization. Metal-hydrocarbon interaction probably occurred at the deposit, where a faulted boundary juxtaposed hydrocarbon fluids from a subsiding sedimentary basin with metals in a volcanic terrane.