Geochemical Characteristics, Metallogenetic Model and Exploration Predicting of Yindongzi Ag-Pb Polymetallic Deposit, Zhashui County, Shaanxi Province, China

• 责任者：Wang Ruiting (Geological Exploration Institution of Northwest Mining and Geological Exploration Bureau for Non-ferrous Metals ; Xi’an ; 710054 ; China) ; Ren Tao
• 刊名：Acta Geologica Sinica
• 出版年：2010
• 卷期：84(3)
• 关键词：银矿 ; silver ores ; 铅矿 ; lead ores ; 多金属矿 ; polymetallic ores ; 陕西 ; Shaanxi Province
• 页码：p.418-430
• 图表：8 illus., 6 tables, 30 refs.
• 分类号：1001
• issnNo：ISSN0001-5717
• isbnNo：CN11-1951/P

The REE content of rocks and ores range widely in Yindongzi Ag-Pb polymetallic deposit, REE distribution patterns dip to right, enrich LREE, and differentiates pooly for HREE, barite vein and ores have negative Ce anomaly, the depletion of Ce imply submarine hydrothermal process. Pb isotope analysis suggested that Pb mainly came from depth, related with volcanic activity in sea floor. It showed that the deposit formed in Middle Devonian era, and metallogensis happened simultaneously with hydrothermal sedimentary rock- forming process by isotopic date references and geologic study. It proved that hydrothermal sedimentary process was main ore-forming means by research. These conclusion pointed direction for probing further mineralization mechanics and exploring in Zhashui-Shanyang sedimentary basin.