滇西羊拉铜矿床、鲁春铜铅锌矿床构造控矿特征  

Characteristics of Ore-Controlling Structures in the Yangla Copper Deposit and Luchun Cu-Pb-Zn Deposit, Western Yunnan

作　　者：杨喜安[1] 刘家军[1] 韩思宇[1] 刘月东 罗诚 汪欢[1] 翟德高[1] 

机构地区：[1]中国地质大学地质过程与矿产资源国家重点实验室,北京100083 [2]云南迪庆矿业开发有限责任公司,云南德钦674507

出　　处：《大地构造与成矿学》2012年第2期248-258,共11页Geotectonica et Metallogenia

基　　金：国家重点基础研究发展计划(973计划)(2009CB421003;2009CB421005);高等学校学科创新引智计划项目(B07011)资助

摘　　要：羊拉铜矿床、鲁春铜铅锌矿床位于金沙江成矿带的中部。羊拉铜矿床铜是三江地区典型的大型铜矿床,其赋矿围岩为不同岩性的岩石组成的混杂堆积,容矿构造为缓倾的逆断层和陡倾的正断层;鲁春铜铅锌矿床受到逆断层的控制。通过对4个测点共轭剪节理的研究,表明里农矿段KT2、KT5矿体的古构造应力场最大主应力方向为东西向和北东-南西向,里农矿段、江边矿段花岗闪长岩体的古构造应力场最大主应力方向为北东-南西向。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 × 10^6 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.

关 键 词：金沙江成矿带 控矿构造 羊拉铜矿床 鲁春铜铅锌矿床 滇西 

分 类 号：P613[天文地球—矿床学]