滇东南薄竹山花岗岩体西侧矽卡岩型钨锡多金属矿床地质条件及找矿预测  

The Geological Conditions and Prospecting Prediction of Midwest Side of Bozhushan Granite Skarn Type Tungsten Tin Polymetallic Deposits in Southeast Yunnan

作　　者：张磊[1] 范玉华[1,2] 张世涛[1] 谷立立[3] 张光政[1] 

机构地区：[1]昆明理工大学国土资源工程学院,昆明650093 [2]云南省地质调查院,昆明650216 [3]云南师范大学,昆明650500

出　　处：《河南科学》2014年第5期846-850,共5页Henan Science

基　　金：国家自然科学基金(619220090006);云南省三年地质找矿行动计划(201200003)

摘　　要：在对该区地层、构造、岩浆岩及围岩蚀变等成矿地质条件系统分析的基础上,得出结论:该区成矿主要与燕山晚期大山单元花岗岩的侵位有直接关系;寒武系大丫口组(∈2d)碳酸盐岩为主要控矿岩性;接触带构造为主要控矿、容矿构造;围岩蚀变强烈,其中透闪石化、绿帘石化中白钨矿化最强烈,硫化矿主要形成于较晚期的黄铁、黄铜矿化和方铅、闪锌矿化.通过以上地质条件的研究,发现该区钨锡多金属矿成矿前景较好,并总结出找矿标志,分析了找矿方向.Based on the analysis of strata, structure, magmatite and asjacent rock alteration etc, the granite emplace- ment of late yanshannian dashan unit is the main cause of mineralization in the area. Cambrian dayakou group （∈2 d） carbonate is the main ore-controlling lithology, while the contact zone structure is the main mining, ore controlling structures. The wall rock has an intense alteration, among them tremolitizayion and epidotization have the strongest scheelite mineralization. Sulphide ore is mainly formed in the late pyritization, chalcopyritization and Pb-Zn minera- lization. Through the study of the geological conditions, we found that the tungsten and tin polymetallic metallogenic prospects are good, and then we summarized ore-prospecting criteria and analyzed prospecting direction.

关 键 词：钨锡多金属矿床 地质条件 找矿标志 围岩蚀变 

分 类 号：P611[天文地球—矿床学] P618.67[天文地球—地质学]