矿床地质2013，Vol.32Issue(1)：37-54,18.
东昆仑祁漫塔格西段白干湖超大型钨锡矿田地质特征及其矿化交代岩分类
Geological characteristics and mineralization-metasomatite classification of superlarge Baiganhu tungsten-tin orefield in western Qimantag, East Kunlun Mountains
摘要
Abstract
The Baiganhu tungsten-tin orefield is located in Ruoqiang County of Xinjiang, lying in the west of the Qimantag Mountain along the East Kunlun Mountains. The authors hold that several ore deposits such as Kekekaerde Baiganhu, Bashierxi and Aerwa constitute the superlarge tungsten-tin orefield characterized by the combination of the skarn type, the greisenized granite fine veinlet dissemination type and the quartz vein type. Mineralization types show certain extent of distribution and zoning inside the orefield: the scheelite skarn deposit occurs in the outer contact zone of granite, the ore bodies stratoid and lenticular in form distributed in the marble of the epimetamorphic rock series of Jinshuikou Group; the tungsten-tin ore bodies of greisenized granite fine veinlet dissemination type lie inside the small bumps of the granite and extended veins of the outer contact zone, the former is in areal distribution in the form of thick plate lens, and the latter is in linear distribution in surrounding rocks; cassiterite-wolframite ore bodies of quartz vein type are seen in the outer contact zone of the upper bumps of concealed granite. Confined by regional NE-trending Baiganhu deep fault, the ore bodies in the form of parallel veins are filled in epimetamorphic sericite -quartz schist of Jinshuikou Group at a low angle. According to the characteristics of the ore mineral combination, the mineralization alteration in the orefield can be divided into three main types: skarn, greisenization (including albitization, tourmalinization) and silicification. Studies show that three different ore bodies which have genetic relationship with the adamellite invasive activity in Caledonian constitute the metallogenic series of the orefield and belong to the metasomatism of the post-mag-matic high temperature-tungsten and tin type.关键词
地质学/地质特征/交代、充填矿化类型/白干湖钨锡矿田/祁漫塔格/东昆仑Key words
geology, geological characteristics, metasomatic and filling mineralization type, Baiganhu tungsten and tin orefield, Qimantag, East Kunlun Mountains分类
天文与地球科学引用本文复制引用
李大新,丰成友,周安顺,李洪茂,李鑫,刘建楠,肖晔..东昆仑祁漫塔格西段白干湖超大型钨锡矿田地质特征及其矿化交代岩分类[J].矿床地质,2013,32(1):37-54,18.基金项目
本文得到国家自然科学基金项目(批准号:41172076)、中国博士后科学基金项目(编号:20090460132)、中国地质调查局地质调查项目(1212011085528)和中国地质调查局青年地质英才计划(201112)的联合资助 （批准号:41172076）
