A Study of the Modes of Occurrence of Silver and Gold and the Characteristics of Silver Minerals in the Anji Polymetallic Deposit of Zhejiang Province

详细信息   

• 责任者：Tang Yanwen (University of Science and Technology ; Beijing 100083 ; China) ; Xie Yuling
• 刊名：Acta Petrologica et Mineralogica
• 出版年：2012
• 卷期：31(3)
• 关键词：多金属矿 ; polymetallic ores ; 金矿物 ; gold minerals ; 银矿物 ; silver minerals ; 浙江 ; Zhejiang Province
• 页码：p.393-402
• 图表：2 illus., 2 tables, 20 refs.
• 分类号：1001
• issnNo：ISSN1000-6524
• isbnNo：CN11-1966/P

摘要

///There exists a lead-zinc-copper polymetallic deposit of hydrothermal type in the Anji mining area. The ore samples from prospecting trenches and bore holes were analyzed and tested, and the results indicate that all kinds of ores contain high grade of silver, and hence the silver ore body can be distinguished from other ore bodies. Based on microscopic examination, SEM/EDS and EPMA analysis, the authors found that Cu, Pb and Zn occur respectively in chalcopyrite, galena and sphalerite, and silver may be closely coexistent with Pb-Zn-Cu sulfides. Based on studying tens of typical thin sections by using microscopic examination, SEM/EDS and EPMA, the authors also found that in most lead-zinc and copper ores, gold and silver exist as isomorphism in galena, chalcopyrite, sphalerite and pyrite, with the content of 0.03 %～0.57 % and 0.02 %～ 3 %, respectively.