| 西藏尕尔穷铜矿的矿床地质特征及成矿条件浅析 |
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| 引用本文： | 张林,肖渊甫,胡涛.西藏尕尔穷铜矿的矿床地质特征及成矿条件浅析[J].四川有色金属,2009(3):11-17. |
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| 作者姓名： | 张林 肖渊甫 胡涛 |
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| 作者单位： | 1. 成都理工大学,四川,成都,610059
2. 西藏地勘局地质六队,拉萨,851400 |
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| 基金项目： | 西藏自治区矿产资源潜力评价(编号:1212010881631)资助和矿物学、岩石学、矿床学国家重点(培育)学科建设项目 |
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| 摘 要： | 尕尔穷铜矿位于冈底斯早燕山期褶皱系,矿区主要出露白垩系玉多组的一套过渡型至稳定型浅海相碳酸盐岩夹中性火山岩、火山碎屑岩建造。区内以断裂构造为主,呈北东-南西向展布;岩浆活动频繁,以中性-中酸性侵入岩为主。矿体产于中性-中酸性侵入体与碳酸盐岩外接触带。蚀变类型有:矽卡岩化、硅化等。本文介绍了区域地质背景、矿体地质特征、地球物理特征,从地层、构造、岩浆岩等方面讨论了成矿条件,发现该区铜矿的形成与中酸性侵入体,灰岩、大理岩的围岩条件,及区内复杂的构造有密切的成因联系,因此推断该矿床为矽卡岩型。
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| 关 键 词： | 矽卡岩型铜矿床 成矿条件 地质特征 西藏尕尔穷 |
Geological Characteristics and Analysis of Ore-forming Conditions for Copper Deposits of Ga er-qiong in Tibet |
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| ZHANG Lin,XIAO Yuan-fu,HU Tao.Geological Characteristics and Analysis of Ore-forming Conditions for Copper Deposits of Ga er-qiong in Tibet[J].Sichuan Nonferrous Metals,2009(3):11-17. |
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| Authors: | ZHANG Lin XIAO Yuan-fu HU Tao |
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| Affiliation: | ZHANG Lin,XIAO Yuan-fu,HU Tao(Chengdu University of Technology,Chengdu,610059) |
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| Abstract: | Ga er-qiong copper deposit is located in Gangdese fold belt of the early Yanshanian.In the area,Cretaceous Yuduo Formation is the main outcropped stratigraphy which is a suit of transitional to stable shallow marine carbonate rocks with intermediate volcanic and pyroclastic construction.NW-SE extending faults are the main structures;magmatic activities are frequent and the intermediate,intermediate-acid intrusive are the main rock bodies.Ore bodies occur in the outside contact between intermediate,intermedi... |
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| Keywords: | Skarn-type copper deposit Geological characteristics Ore-forming conditions Ga er-qiong Tibet |
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