Organic Geochemistry of Wulagen Pb-Zn Deposit in Southwest Tianshan Mountains and Its Implications
详细信息
- 责任者：Han Fengbin (Institute of Geomechanics ; Chinese Academy of Geological Sciences ; Beijing 100081 ; China) ; Chen Zhengle
- 刊名：Mineral Deposits
- 出版年：2013
- 卷期：32(3)
- 关键词：铅锌矿床 ; lead-zinc deposit ; 有机地球化学 ; organic geochemistry ; 天山 ; Tianshan Mountains
- 页码：p.591-602
- 图表：4 illus., 3 tables, 53 refs.
- 分类号：1001
- issnNo：ISSN0258-7106
- isbnNo：CN11-1965/P
摘要
The Wulagen lead-zinc deposit is hosted in Mesozoic-Cenozoic sandstones and conglomerates, where lots of organic matters are widely spread. This paper mainly presents analytical data of organic carbon, sulfur, chloroform bitumen “A” and its group composition, and saturated hydrocarbons detected by gas chromatography in ore bodies and host rocks, so as to better understand the roles of organic matter in the mineralization of lead and zinc. The results show that the composition of organic and sulfur in lead-zinc ores is relatively rich, suggesting that the lead-zinc mineralization was closely related to the reduction of oil and gas. The content of chloroform bitumen “A” in organic matter varies from 0.004% to 0.025%.