- 责任者：Zhang Zhihui (School of Earth Sciences and Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Zhang Da
- 刊名：Geological Bulletin of China
- 出版年：2013
- 卷期：32(10)
- 关键词：金矿 ; gold ores ; 硫矿床 ; sulfur deposit ; 硫同位素 ; sulfur isotopes ; 铅同位素 ; lead isotopes ; 安徽 ; Anhui Province
- 页码：p.1643-1652
- 图表：5 illus., 2 tables, 37 refs.
- 分类号：1001
- issnNo：ISSN1671-2552
- isbnNo：CN11-4648/P
The Jiaochong Au-S ore deposit is located in the Tongling ore concentration area along the middle-lower reaches of the Yangtze River. The ore body mainly occurs in the Lower Permian Qixia Formation. Based on an analysis of geological and ore- forming conditions, this paper systematically focuses on the composition characteristics of S, Pb isotopes in the sulfide ore minerals, and also discusses the sources of the ore-forming materials. Studies have shown that the composition of S isotope in sulfide ore minerals has a narrow variation range, and the δ34S∑s in the ore-forming hydrothermal system is about 4.0‰. It is inferred that the S was genetically closely related to the magmatic sulfur. The isotopic compositions of ore lead vary greatly and belong to anomalous lead. Finally, through the chart of Zartman＇s Pb evolutionary tectionic settings and △γ-△β diagram of genetic classification, the authors considerthat the ore-forming materials of the ore deposit were closely related to the magmatism and derived from the mixed sources of the upper continental crust and the mantle. The authors sincerely hope that these data can provide some help for the study of ore deposits related to granodiorite of the Tongling ore concenteation area.