西藏江孜县沙拉岗锑矿床成矿与找矿模式的初步研究  

STUDY OF METALLOGENIC AND PROSPECTING MODELS FOR THE SHALAGANG ANTIMONY DEPOSIT, GYANGZE, TIBET

作　　者：李金高[1] 王全海[2] 陈健坤 姚鹏[4] 彭勇民[4] 

机构地区：[1]同济大学海洋地质系 [2]中国地质调查局西南项目办 [3]西藏自治区政府办公厅 [4]成都地质矿产研究所

出　　处：《成都理工学院学报》2002年第5期533-538,共6页Journal of Chengdu University of Technology

基　　金：西藏自治区科委重点研究项目 ( 990 1 0 7);西藏地矿厅重点研究项目

摘　　要：藏南锑矿带长逾 6 0 0 km,宽 2 0～ 80 km,带内已发现的矿床 (点 )和异常区多处 ,其中江孜县沙拉岗锑矿床经初步普查已达中型规模。该矿床以金属组分单一和特富块状辉锑矿矿石为主要特色 ,主矿体明显受地层层位控制 ,部分次要矿体产于闪长岩体的接触带 ,呈富锑石英脉切穿岩体。通过对该矿区首轮研究后 ,明确提出了复合式 Sedex型成因类型的新认识 ,并对该矿床的成矿过程进行了分析 ,建立了矿床的区域找矿模式。The antimony mineralization zone in the south of Tibet is 600 km long and 20~80 km wide. A number of deposits and antimony anomaly areas are discovered in it. Among them, the Shalagang antimony deposit is believed to get to a medium-sized scale by means of a preliminary general investigation. On the basis of the results of the recent geologic investigation and exploration, and the research on the type of the mineral deposit, the authors discover that the deposit is mainly characterized by unity metallic component and the richest antimonite ore, that the main orebody, such as No.9 orebody, is controlled by horizon, and other orebodies, riched in antimonite quartz veins that cut off the rock body, locate at the contact zone with diorite body. By means of the first research and preliminary analysis of ore-forming process of the deposit, the authors make a new viewpoint that the deposit belongs to the complex Sadex type deposit and set up a genetic model of the deposit and a model for exploration.

关 键 词：锑矿床 找矿模式 西藏 成矿过程 成矿地质条件 

分 类 号：P618.66[天文地球—矿床学]