再论北票二道沟金矿床成矿物质来源  

New idea on the origin of ore-forming materials of Erdaogou gold deposit in Beipiao, Liaoning Province

作　　者：马光[1] 刘继顺[1] 张洪培[1] 

机构地区：[1]中南大学地学与环境工程学院

出　　处：《黄金》2004年第10期11-15,共5页Gold

基　　金：国家自然科学基金资助项目 (40 0 72 0 32 )

摘　　要：辽宁北票二道沟金矿床成矿物质 ,来源于太古界片麻岩及燕山晚期岩浆岩。以前曾认为燕山晚期岩浆岩属于重熔型花岗质岩石 ,但经过笔者对岩石和矿石的稀土元素、同位素及岩石地球化学指标等方面研究表明 :不是重熔型花岗质岩石 ,而是同熔型花岗质岩石。这种新认识为研究二道沟金矿床成矿地质地球化学条件及成因探讨、加强二道沟矿床进一步深入工作及扩大找矿范围 ,拓宽了思路。The ore-forming materials of Erdaogou gold deposit in Beipiao, Liaoning Province originating from Archean gneiss and late Yanshan magmatite. Previous research holds that the late Yanshan magmatite is anatectic granite rock. However, the research conducted by the authors on rare-earth elements and isotopic elements in rock and ores, and geochemical properties of rock shows that the magmatite is not anatectic granite rock, but syntectic granite rock. The new idea lays a foundation for further studying on geochemical conditions and origin of metallogeny in Erdaogou gold deposit and widening ore-finding range.

关 键 词：二道沟金矿床 稀土元素 岩石地球化学 同熔型花岗质岩石 

分 类 号：P618.51[天文地球—矿床学]