Sulfur, Lead, Strontium and Neodymium Isotope Compositions of the Mohailaheng Lead-Zinc Ore Deposit in the Yushu Area, Southern Qinghai: Implications for the Sources of Ore-Forming Material in the Deposit and Comparison with Those of Dongmozhazhua Lead-Zinc Ore

详细信息   

• 责任者：Tian Shihong (MLR Key Laboratory of Metallogeny and Mineral Assessment ; Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Hou Zengqian
• 刊名：Acta Petrologica Sinica
• 出版年：2011
• 卷期：27(9)
• 关键词：铅锌矿床 ; lead-zinc deposit ; 成矿物质来源 ; source of ore material ; 青海 ; Qinghai Province
• 页码：p.2709-2720
• 图表：6 illus., 3 tables, 37 refs.
• 分类号：1001
• 出版序号：483
• issnNo：ISSN1000-0569
• isbnNo：CN11-1922/P

摘要

The Mohailaheng and Dongmozhazhua Pb-Zn deposits in the Yushu area of Qinghai Province, are the two typical Pb-Zn deposits in the Cu-Pb-Zn polymetallic mineralization belt for the northern part of the Nujiang-Lancangjiang-Jinshajiang area. The authors thought the sources of ore-forming material were derived from the sedimentary strata by the research of sulfur, lead, strontium and neodymium isotope compositions of the Dongmozhazhua lead-zinc ore deposit. On the basis of geological field observations, the authors also made the research on the Mohailaheng lead-zinc ore deposit and selected sulfide minerals and barite for S isotope compositions analyses, sulfide minerals, gangue minerals and regional strata for Pb isotope compositions analyses, and gangue minerals for Sr-Nd isotope compositions.δ³⁴S values of sulfide minerals are -30.0‰~+7.4‰, and show peaks at -18‰~-2‰, reflecting the characteristic of light sulfur.