| 宋立强,宋仲科,燕长海,戴中强.四川小草坝白钨矿床地质特征及成因探析[J].矿产勘查,2020,11(5):944-953 |
| 四川小草坝白钨矿床地质特征及成因探析 |
| Geological characteristics and genesis of Xiaocaoba Tungsten deposit,Sichuan Province |
| 投稿时间：2019-06-15 |
| DOI： |
| 中文关键词: 白钨矿床:层控:沉积-改造:小草坝:四川 |
| 英文关键词: Tungsten deposit, Stratabound, Sedimentary reformation, Xiaocaoba,Sichuan Province |
| 基金项目: |
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| 摘要点击次数: 1611 |
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| 中文摘要: |
| 小草坝白钨矿床是近年新发现的大型层控型白钨矿床，位于上扬子西缘成矿带，但该带中钨矿床较少，该矿床的研究将为区域上钨矿床的新发现提供有益的借鉴。通过对矿区钻孔、填图、分析测试等数据的综合研究，发现矿床产于岩体外接触带的透辉长英质角岩带内，矿体产状与地层基本一致，主矿体与花岗岩体不是直接接触，具明显的层控特征。初步认为，小草坝钨矿床是在中-上三叠统侏倭组具有较高的初始钨丰度的基础上，后经燕山期岩浆活动的叠加改造作用下成矿的，其成因属于沉积-改造型层控白钨矿床。 |
| 英文摘要: |
| Xiaocaoba tungsten deposit is a large tungsten deposit newly discovered in recent years, It is located in the western rim of the Yangzi plate, but there are few tungsten deposits in this belt. The study of this deposit will provide useful reference for the new discovery of regional tungsten deposits.Through the comprehensive research on the data of drilling, mapping, analysis and testing in the mining area,it is found that the deposit occurs in diopside-felsic-hornstone belt in the outer contact zone of the rock mass,the occurrence of the ore body is basically the same as that of the stratum. The main ore body is not in direct contact with the granite body and has obvious stratabound characteristics.The mineralization is on the basis of the high initial tungsten abundance of the middle-upper Triassic Jurassic, and the formation of thermal events in the later period, especially the superimposition and transformation of the Yanshanian magmatism. The reason of this is the sedimentary-modified layer-controlled scheelite bed. |
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