滇东南麻栗坡县洒西祖母绿矿床控矿特征  

Ore-controlling Characteristic of the Saxi Emerald Deposit at Malipo County,the Southeastern Yunnan, China

作　　者：潘锦波 薛伟[2] 李兆龙 赵乾 牟延波 PAN Jin-bo;XUE Wei;LI Zhao-long;ZHAO Qian;MOU Yan-bo(China Railway Resources Group Co.,Ltd.,Beijing 100039,China;School of Earth Sciences and Resources,China University of Geosciences,Beijing 100083,China)

机构地区：[1]中铁资源集团有限公司,北京100039 [2]中国地质大学(北京)地球科学与资源学院,北京100083

出　　处：《价值工程》2017年第11期193-195,共3页Value Engineering

摘　　要：洒西祖母绿矿床位于滇东南褶皱系上,为了对其找矿远景提供帮助,本文利用构造地质学方法研究矿床的控矿特征。认识到洒西岩组变粒岩是祖母绿矿床赋存的重要空间。三种空间形态的祖母绿脉体至少经历两期成矿事件,第一期祖母绿脉体形成过程:早期已存在的顺层剪节理,受推覆构造影响打开成张裂隙,经热液填充形成伟晶岩脉;第二期祖母绿脉体是受后期岩浆作用蚀变而成。The Saxi Emerald deposit is located in the fold system of the Southeastern Yunnan,in order to provide scientific guidancefor further ore-prospecting,this paper studies ore-controlling characteristic of the deposit through the method of geological tectonics.Itshows that the Saxi granulite group is an important bedding space for the emerald deposit.The three dimensional forms of emerald veins atleast experienced two phases of mineralization event.The first one is that the former bedding shear fissure turned into the tension fissureafter affected by the nappe structure,at the same time,the tension fissure was filled with hydrothermal as pegmatite vein.The second onechanged into alteration when it was influenced by the late-stage magmatism.

关 键 词：祖母绿矿床 滇东南 找矿远景 

分 类 号：P611[天文地球—矿床学]