摘要
笔者对内蒙古朱拉扎嘎金矿做了详细的镜下岩 (矿 )相学研究工作 ,首次发现了火山岩 (包括石英角斑岩、粗面流纹岩、团粒状流纹岩、蚀变矿化流纹岩、蚀变霏细岩等 )和其他火山活动的痕迹。改变了过去人们对该矿床成因的认识。火山活动不仅带来了大量熔浆热物质 ,而且还带来了大量的成矿金属元素 ,为矿床的形成准备了丰富的物质基础和良好的成矿环境。因此 。
Based on detailed facieologic and mineragraphic studies of the Zhulazhaga gold deposit, the authors discovered for the first time volcanic rocks consisting of quartz keratophyre, trachyliparite, lumpal rhyolite, altered and mineralized rhyolite, and altered eurite, and other evidence of volcanic activity. Strong metasomatism and alteration associated with gold mineralization took place between volcanic magma and strata during the Middle Proterozoic volcanic activity. Therefore, the synsedimentary volcanic activity within the Zhulazhagamaodao Formation must have played an important role in the formation of the Zhulazhaga gold deposit.
出处
《矿床地质》
CAS
CSCD
北大核心
2002年第3期304-310,共7页
Mineral Deposits
基金
中国地质调查局定向基金项目"内蒙古朱拉扎嘎金矿地质特征及外围找矿"的部分成果
