• 责任者：Yin Xianming (Gansu Provincial Bureau of Geology and Mineral Exploration and Development ; Lanzhou 730000 ; China)
• 刊名：Gansu Geology
• 出版年：2013
• 卷期：22(4)
• 关键词：金矿 ; gold ores ; 铅锌矿床 ; lead-zinc deposit ; 硅质岩 ; silicolite ; 秦岭 ; Qinling Mountains
• 页码：p.15-21
• 图表：4 tables, 14 refs.
• 分类号：1001
• issnNo：ISSN1004-4116
• isbnNo：CN 62-1191/P

     In west Qinling region, there are many nonferrous and precious metal deposits, especially some large and super large deposits, occurred in silicious rocks. Some researchers support that these deposits were syngenetic hydrothermal sedimentary deposit. The author studied 3 ore concentration areas as Xihe-Chenxian Pb- Zn-Au zone, Feng-Tai Pb-Zn-Cu zone and Dashui Au zone from such 7 aspects as metailogentic setting, relation between silicious rock and mineralization, sources of silicious rocks and ore-forming material, petrogenic and metallogenic age, relation of granite and mineralization, ore-control and ore-bearing structures, and wall rock alteration. The geochemistry show that the source of ore-forming and petrogenic material are the old basement crust, not the Devonian and Triassic strata. This type deposits in the study area should be epigenetic structural- magmatic-hydrothermal deposit.