摘要
我们研究了小寺沟斑岩矿床及其共生的夕卡岩矿床的地质特征,以及流体包裹体、硫同位素、微量元素和稀土元素等地球化学特征,认为这两种类型矿床具有同期性、同源性,表现出在相近的成矿温度下,同一成矿流体在岩体及夕卡岩中分別成矿、成矿热液的pH变化是造成钼铜在岩体及夕卡岩中相对分离的主要原因。
The geology of the Shlaosigou porphyry deposit and its coexisting skarn deposits and the geochemistry of fluid inclusions, sulfur isotopes, trace elements and rare earth elements have been investigated in this paper. It is concluded that these two types of deposits are of contemporaneity and consanguinity, as indicated by ore deposition from the same ore-forming fluid in plutons and skarns at similar ore-forming temperatures. The variation of pH in the ore-forming fluids may be a mechanism for the relative separation of Mo and Cu between the plutons and the skarns.
出处
《地球化学》
CAS
CSCD
北大核心
1990年第2期166-174,共9页
Geochimica
