煎茶岭大型金矿床成矿机理探讨  

Probing into the metallogenic mechanism of Jianchaling large gold ore deoposit

作　　者：王瑞廷[1,2] 赫英[1] 王新 

机构地区：[1]西北大学地质系 [2]西北有色地质勘查局,西安710054

出　　处：《西北地质科学》2000年第1期19-26,共8页Northwest Geoscience

基　　金：国家自然科学基金项目!(编号 :4 9972 0 34);国家重大基础研究规划项目!(编号 :G19990 4 32 11);国家有色金属工业局人才基金

摘　　要：以构造 -流体 -成矿系统理论为指导 ,在综合分析煎茶岭大型金矿床的区域地质背景、成矿地质条件、成矿物质来源、成矿物理化学条件、成矿作用特征及成矿时代的基础上 ,研究探讨了其成矿机理。认为该金矿床成矿物质主要来自超基性岩 ,在中低温碱性还原环境中成矿 ,成矿时代为加里东晚期—燕山期 ,成矿作用具长期、多期性。其成矿机理复杂 ,主要以构造岩浆热液成矿作用和构造流体改造成矿作用为主 ,通过充填交代蚀变方式而形成该微细浸染状构造蚀变岩型金矿床。Under the guide of the theory of structure fluid metallogenesis system, on the basis of comprehensively analysing regional geology background, metallogenic geology condition, source of metallogenic meterials, metallogenic physics and chemistry condition, feature of metallogenesis and metallogenic epoch of Jianchaling large gold ore deposit, the metallogenic mechanism of the gold deposit is probed It is proved that the metallogenic meterials mainly derived from the ultra basic rock mass, the metallogenic envoirnment is middle low temperature, alkaline and reductive, the metallogenic epoch is from later Jialidong movement to Yanshan movement, and the metallogenesis is a long term and multi staged process The metallogenic mechanism is very complex, which mainly includes structure magma hydatogenesis and structure fluid reworking metallogenesis The micro disseminated structure altered rock type gold deposit is formed by crowd and metasomatic alteration

关 键 词：大型金矿床 成矿物质来源 成矿作用 

分 类 号：P618.510.5[天文地球—矿床学]