浙江弄坑金银矿化区黄铁矿标型研究  

RESEARCH ON TYPOMORPHISM OF PYRITE FROM LONGKENG GOLD-SILVER MINERALIZATION DISTRICT IN WUYI COUNTY, ZHEJIANG PROVINCE,CHINA

作　　者：周学武[1] 李胜荣[1] 鲁力[2] 王吉中[1] 

机构地区：[1]中国地质大学岩石圈构造深部过程及探测技术教育部重点实验室,北京100083 [2]中国地质大学,湖北武汉430074

出　　处：《矿物岩石》2004年第4期6-13,共8页Mineralogy and Petrology

基　　金：国家重大基础研究项目(G1998040800);国家自然科学基金项目(40073012)

摘　　要：　通过对浙江武义弄坑金银矿化区黄铁矿的产状、形态、成分及其特征比值[如w(S)/w(Fe),w(Fe)/w(S+As),w(Co)/w(Ni),w(S)/w(Se),w(Se)/w(Te),n(Au)/n(Ag)]、硫、铅同位素、热电性、包裹体特征的研究,分析了黄铁矿成因标型及找矿标型,提取了大量的成因及找矿信息,为该矿化区矿化成因类型的确定提供了可靠性的矿物学依据。并首次利用黄铁矿微量元素的三角形图解对本矿化区深部矿化远景进行了预测。笔者们认为:该区金银矿化属浅成低温火山热液成因类型;在矿化区的深部地段可望找到富的金银矿化体。This paper studied such characteristics of the pyrite as state of occurrences, shapes, composition and its typomorphic ratios [w(S)/w(Fe),w(Fe)/w(S+As),w(Co)/w(Ni),w(S)/w(Se),w(Se)/w(Te),w(Au)/w(Ag)], lead isotope, sulfur isotope, thermoelectric coefficient, fluid inclusions in Longkeng gold-silver mineralization district,analyzed the genesis and prospecting typomophism of the pyrite, worked out a large amount of information on the genesis and prospecting potential,predicted mineralization perspective of the depth in the ore district by using the trigonal illustrate of the pyrite composition.The study not only provided reliable mineralogical basis for the genesis of Longkeng gold-silver mineralization,but also gave efficient evidence for gold and silver prospecting at depth in the mineralization district.It was considered that Longkeng gold-silver mineralization is of epithermal vocanogenic origin and it would be profitable in the ore prospecting in depth in Longkeng gold-silver mineralization district.

关 键 词：银矿 成因类型 矿化 黄铁矿 找矿信息 火山热液 找矿标型 深部 产状 矿物学 

分 类 号：P618[天文地球—矿床学] TD863[天文地球—地质学]