Style and Process of the Superimposed Mineralization in the Sanjiang Tethys
详细信息
- 责任者：Deng Jun (State Key Laboratory of Geological Processes and Mineral Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Wang Changming
- 刊名：Acta Petrologica Sinica
- 出版年：2012
- 卷期：28(5)
- 关键词：叠加成矿作用 ; superposed metallogenesis ; 特提斯构造带 ; Tethyan Tectonic Zone ; 西南地区 ; Southwest China
- 页码：p.1349-1361
- 图表：illus.,79 refs.
- 分类号：1000
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
The Sanjiang area in China has experienced the multi-episodes of ocean-continent subductions in the Tethys Period and the continent-continent collision in Cenozoic; various ore deposits formed in the ocean growth and subduction environment, and they are also situated in the transition time from the main collision to late collision stages, the Cenozoic collision induce the formation of the porphyry copper-gold belt, the lead-zinc deposits hosed in sedimentary rocks as well as the orogenic belt. The multiple episodes of metallogenesis located in the different time and tectonic background occurred in one orefield or ore deposit, causing various types of superposed deposits. These deposits can be categorized into three types and further into nine subtypes. The superstition increased the metal types, reserve quantity, economic value of the deposits, yet it was mainly supported by chronological data and general phenomena in deposit and orefield scale, the detailed formation conditions, spatial orebodies and ore structure and the geochemical and mineralogical evidences are still necessary for further study.
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