摘要
本文在对天宝山铅锌矿流体包裹体开展了系统的岩相学观察、包裹体均一法测温以及包裹体成分测定,结果表明,该矿床成矿温度较低,在120℃~160℃之间;含盐度也较低,介于5.11%~8.45%之间;流体密度为中—低密度流体;成矿压力范围为40~45Mpa,推出成矿深度约为1.5km^2.0km,该矿床形成于弱酸性还原环境。表明该铅锌矿具有浅成中—低温热液和盆地流体的特点,属于典型的密西西比型(MVT)铅锌矿。
In this paper,we put forward the fluid inclusion study result of Tianbaoshan Pb- Zn deposit,which shows the metallogenetic T is low（ 120 - 160 C°）,salinity low（ 5. 11 - 8. 45%）,fluid density middle-low,metallogenetic P40 - 45 Mpa,inferred metallogenesis depth about 1. 5 - 2. 0km. It is formed in the weak acid reduction environment,characterized by hypabyssal middle- low T hydrothermal and basin fluid,belonging to the typical Mississippi valley- type Pb- Zn deposit.
出处
《云南地质》
2015年第4期531-538,共8页
Yunnan Geology
关键词
流体包裹体
地球化学
密西西比型
四川天宝山铅锌矿
Fluid Inclusion
Geochemistry
Mississippi Valley-Type
Sichuan Tianbaoshan Pb-Zn Deposit
