摘要
胶东金的成矿作用是在以前寒武纪绿岩带为初始矿源层背景上演化的。与各时代地质热事件相匹配的成矿作用形成了区域两大内生成因系列热液金矿——元古宙变生热液金矿及中生代大气降水热液金矿。成矿流体与围岩相互作用过程中的δD、δ^(18)O演化规律及成矿流体化学组分一方面揭示了这两种矿床成因的差异,另一方面又反映了它们存在着某些内在的成因联系。
The Jiaodong gold deposits evolved on the basis of the original gold source bed in the Precambrian greenstone belt. There are two types of endogenic hydrothermal deposits——Proterozoic metamorphic hydrothermal gold deposits and Mesozoic meteoric hydrothermal gold deposits which match the thermal events of different geological ages. The δD and ^(18)O evolution and chemical composition of ore-forming fluids in the process of ore-forming fluid-country rock interaction indicate that the two types of gold deposit have obvious distinctions, on one hand, and they have some inherent genetic connections, on the other hand.
出处
《矿物学报》
CAS
CSCD
北大核心
1991年第4期363-369,共7页
Acta Mineralogica Sinica
基金
中国科学院地球化学研究所矿床地球化学开放研究实验室资助
关键词
金矿
石英
包裹体
氢
氧
同位素
ore deposit genesis
quartz inclusion
H and O isotope
ore fluid
Shandong
