Characteristics of Ore-Controlling Structures in the Yangla Copper Deposit and Luchun Cu-Pb-Zn Deposit, Western Yunnan
详细信息
- 责任者：Yang Xi’an (State Key Laboratory of Geological Process and Mineral Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Liu Jiajun
- 刊名：Geotectonica et Metallogenia
- 出版年：2012
- 卷期：36(2)
- 关键词：铜矿 ; copper ores ; 铅锌矿床 ; lead-zinc deposit ; 云南 ; Yunnan Province
- 页码：p.248-258
- 图表：6 illus., 34 tables, 3 refs.
- 分类号：1001
- issnNo：ISSN1001-1552
- isbnNo：CN44-1595/P
摘要
The Yangla copper deposit and Luchun Cu-Pb-Zn deposit are located in the middle section of Jinshajiang metallogenic belt. The Yangla copper deposit, which is a representive copper deposit in the Jinshajiang-Laneangjiang-Nujiang region, hosts an estimated Cu reserve of about 1.2 × 106 tons. The orebodies are hosted in the melange composed of diverse rocks. The ores were deposited in pre-existing thrust faults in Indosinian period and steeply dipping normal fault in Himalayan period. The directions of the maximum principal stress were E-W and NE-SW in the Yangla deposit. E-W direction was related to the westwards subduction of the Jinshajiang Oceanic plate in Indosinian, NE-SW related to the collision between India plate and Asia plate in Himalayan. The Luchun Cu-Pb-Zn deposit is bordered by the Indosinian thrust fault.