SHUDY ON THE GEOCHEMICAL CHARACTERISTICS OF ORE-FORMING FLUID INCLUSIONS IN DAYINGZI GOLD DEPOSIT, HEBEI PROVINCE
-
摘要: 河北省大营子金矿床成矿流体地球化学特征为:成矿流体属Na+-K+-Ca2+-Mg2+-F--Cl-型;盐度为中低等;成矿温度为280℃;成矿压力约为74.7 MPa;成矿深度约为地下3 km.属中温中深成热液矿床.矿床形成于中性-弱碱性且丰对还原条件下;成矿流体为混合来源,为先期岩浆热液叠加了后期地下热卤水所致.Abstract: The characteristics of fluid inclusions in Dayingzi gold deposit, Hebei Province are as follows. The fluid belongs to Na+-K+-Ca2+-Mg2+-F--Cl- type. The salinity is low-medium degree. Ore-forming temperature is about 280℃ with pressure 74.7 MPa, which indicates the ore-forming depth is about 3 km, thus the deposit belongs to low-middle temperature sy stem. The fluido riginates from mixed resource, i.e., former magmatic water mixed with the later subterranean halogmenic water.
-
Key words:
- Dayingzi gold deposit /
- fluid inclusion /
- geochemical characteristics /
- Hebei Province
-
-
计量
- 文章访问数: 261
- PDF下载数: 28
- 施引文献: 0
下载: