Abstract
Organic geochemical investigations of Kupferschiefer samples from Fore-Sudetic Monocline,
Poland, revealed that organic sulphur compounds such as benzothiophenes, dibenzothiophenes and benzonaphthothiophenes
arc common constituents of this sediment. Considering the presence of these residual
sulphur compounds and many inconsistencies among the existing opinions on reduced sulphur provenience in
sediment-hosted stratiform sulphide deposits, a complementary source
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