Influences of ore formation on biomarkers in the Kupferschiefer from the Lubin mine, Poland

• Published in: Acta geochimica Vol. 24; no. 2; pp. 101 - 107
• Main Author: 孙玉壮 陈建平 林明月 孟志强 张洪建
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Nature B.V 01.04.2005; Open Laboratory of Organic Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China%Key Laboratory for Petroleum Geochemistry, CNPC, Beijing 100083, China%Hebei University of Engineering, Handan 056038, China%China University of Mining and Technology, Xuzhou 221008, China; Hebei University of Engineering, Handan 056038, China
• Subjects: Alkylation; Biomarkers; Copper; Geochemistry; Mineral deposits; Mineralization; Mineralogy; Mines; Organic matter; Parameters; Sulfate reduction; Sulphate reduction; Sulphides; 分子生物标签; 卢布林沉积矿; 甲基菲指数; 矿石信息; Kupferschiefer; methylphenanthrene index; biomarker; ore formation
• ISSN: 1000-9426; 2096-0956; 1993-0364; 2365-7499
• DOI: 10.1007/BF02841152

Molecular biomarkers are the important maturity parameters for sedimentary organic matter.They have also been widely used for determining the maturity of organic matter in ore deposits. However,during the study of organic matter in the Kupferschiefer from the Lubin mine, it had been found that the biomarkers were influenced by sulfide formation. In order to probe into the degree of influence on biomarkers, seven samples collected from a Kupferschiefer section from the Lubin mine were analyzed by various geochemical methods. The results indicated that in the samples with higher copper contents, the values of biomarkers are lower than in the samples with lower copper contents. In highly mineralized samples, hydrogen donation for thermochemical sulfate reduction (TSR) occurred in alkylated phenanthrenes and naphthalenes, leading to the decrease of 12 biomarker parameters during the Kupferschiefer mineralization.