• 责任者：Liu Tingting (College of Earth Sciences ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Tang Juxing
• 刊名：Geoscience
• 出版年：2011
• 卷期：25(5)
• 关键词：铅锌矿床 ; lead-zinc deposit ; 西藏 ; Tibet
• 页码：p.869-876
• 图表：4 illus., 4 tables, 16 refs.
• 分类号：1001
• issnNo：ISSN1000-8527
• isbnNo：CN11-2035/P

tyle="MARGIN: 0cm 0cm 0pt" class=MsoNormal>tyle="FONT-FAMILY: ’Times New Roman’,’serif’" lang=EN-US>In order to discuss the ore-forming material sources of the Dongzhongla Pb-Zn deposits and study the metallogenic mechanism, we analyzed the sulfur and lead isotope from the orebody, discussed the changing regularity and significance. The results show that the δ³⁴S values of the six metal sulfides vary from 2.2‰ to 4.8‰, and that the sulfur isotope composition is stable. The temperatures calculated from sulfide-paras show that the deposits are the middle-low temperature deposits. The ²⁰⁶Pb/²⁰⁴Pb, ²⁰⁷Pb/²⁰⁴Pb and ²⁰⁸Pb/²⁰⁴Pb ratios of 6 sulfide samples of orebody vary in ranges of 18.628 0-18.629 6, 15.698-15.699 9, 39.0775~39.082 4, with the average values of 18.628 7, 15.699 02 and 39.079 37, respectively. The results of sulfur and lead isotope show that the ore-forming materials of Dongzhongla Pb-Zn deposits came from the Permian volcanic sedimentary rock and late Yanshan period granite. tyle="FONT-FAMILY: ’Times New Roman’,’serif’; mso-bidi-font-size: 10.5pt" lang=EN-US>t;urn:schemas-microsoft-com:office:office" />