• 责任者：Zhao Caisheng (Faculty of Earth Sciences and Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Zhao Junwei
• 刊名：Mineral Deposits
• 出版年：2009
• 卷期：28(3)
• 关键词：金矿 ; gold ores ; 青海 ; Qinghai Province
• 页码：p.345-356
• 图表：4 illus., 4 tables, 45 refs.
• 分类号：1001
• issnNo：ISSN0258-7106
• isbnNo：CN11-1965/P

The Dachang gold deposit is located in the North Bayan Har orogenic belt, an important metallogenic belt in Qinghai Province. The ore deposit was formed during the late stage of regional Indosinian orogenic process, with Au-Sb mineralization related closely to the evolution of the Bayan Har Ocean. All the gold ore bodies are hosted in Middle Triassic sandstone interbedded with slate of Bayan Har Mountains Group and controlled strictly by the fracture zone. All the ore bodies are in veined, veinlike and lenticular forms. Geological and geochemical characteristics are similar to those of the standard orogenic deposits, gold mineralization is of the mesozonal orogenic type whereas antimony mineralization is of the epizonal orogenic type.