Relationship of polycyclic aromatic sulfur compounds and gold enrichment in the Kupferschiefer from Poland and Germany

• Published in: Acta geochimica Vol. 25; no. 1; pp. 16 - 22
• Main Author: 孙玉壮 王萍 陈建平
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Nature B.V 2006; Hebei University of Engineering, Handan 056038, China; Key Laboratory of Resource Exploration Research of Hebei Province, Handan 056038, China%Hebei University of Engineering, Handan 056038, China%Key Laboratory for Petroleum Geochemistry, CNPC, Beijing 100083, China
• Subjects: Aromatic compounds; Boundaries; Brines; Chelates; Chloride ions; Chlorides; Contact; Enrichment; Geochemistry; Gold; Organic compounds; Oxidation; Polycyclic aromatic hydrocarbons; Sulfur; Sulfur compounds; Sulphur; Sulphur compounds; 富集规律; 芳香族化合物; Poland; polycyclic aromatic sulfur compound; gold enrichment; Germany
• ISSN: 1000-9426; 2096-0956; 1993-0364; 2365-7499
• DOI: 10.1007/BF02894792

The contents of polycyclic aromatic sulfur compounds （PASCs） in the Kupferschiefer varied from sample to sample. Twenty PASCs were determined in the Kupferschiefer from Poland and Germany, Gold enrichment was only observed in samples with higher PASC contents. At the same time, all the samples with gold enrichment originated from areas close to tile redox boundary （ the front section of Rote Faule） that was formed by oxidizing brines in contact with the reducing Kupferschiefer. It is proposed that the gold-bearing solutions encountered PASCs in the Kupferschiefer. PASCs could easily displace chloride ions from aurous chloride complexes to form stable gold S-chelates. Subsequent oxidation of these gold organic compounds could destroy the organic components atld lead to the formation of metallic gold,