摘要
矿床成矿偏在性 (趋群性和不均一性 )是金矿床空间分布的重要特点。大型—超大型金矿密集区的形成是矿质来源、热液来源、搬运介质和赋矿空间等的有机统一 ;是富含成矿物质的初始地壳在长期的活化改造作用过程中 ,矿质发生活化、迁移 ,在合适的赋矿空间沉淀并被长期保存而形成的。初始地壳 ,尤其是前寒武纪的变质基底是金矿密集区形成的物质基础。长期的热液活动是成矿物质活化、迁移的动力 ,而长期的地壳活化作用 ,包括岩浆活动和火山活动 ,是热液活动的基础。韧性剪切带、拆离滑脱带、岩体的内外接触带等是大型
Metallogenetic preferentiality is one of the basic characteristics of the gold deposits . The formation of the large-superlarge gold mine concentrated area is the unify system of mieral origin , hydrothermal source , carrying medium and the condition of ore-bearing structure . It is thought that the original crust , especially the metamorphose basement of Precambrian is the base of gold-ore formation . Long-living hydrothermal process is the force of ore-forming substance activiation , and continuous reforming activiations , including magma activiations and volcano activiations , are the base of hydrothermal process . Strike-slip faults , detachment structure are the ideal lacation space of large-superlarge gold deposits .
出处
《地质与勘探》
CAS
CSCD
北大核心
2001年第1期30-32,共3页
Geology and Exploration
基金
中国科学院创新工程项目!(KZCX1-Y -0 3)
中国科学院"九五"重大黄金项目!(KZ95 1-A1-4 0 4-0 2 -0 2 )专题资助
关键词
初始地壳
活化改造
流体活动
赋矿空间
金矿床
成矿物质
预富集作用
the large-superlarge gold mine concentrated area , the original crust , reforming activiations , hydrothermal process , lacation spac$
