摘要
烂泥沟超大型卡林型金（汞、锑）矿床存在有机成矿流体的成矿作用，有机质的来源为含矿地层中的海相藻类等。通过有机包裹体的ＭＰＶ－Ⅲ法、ＦＴＩＲ法及ＬＲＭ法的研究，证明成矿流体中有机质主要为成熟度较高的芳香烃和杂原子化合物，以液相的、与水不混溶的形式迁移。成矿流体盐度很低，不是高盐度的油田卤水。矿床的形成与“低温迁移，高温沉淀”的机制有关。
The metallogenic process of the Lannigou superlarge Carlin type gold (mercury, antimony) deposit was related to organic ore forming fluids, whose organic matter was derived form marine algae in ore bearing strata. The MPV Ⅲ, FTIR and LRM studies of organic inclusions show that the organic matter in the ore forming fluids consisted mainly of fairly matured aromatic hydrocarbon and polyatomic compounds, which migrated in the form of liquid unmixed with water. The ore forming fluids had very low salinity and could not form oilfield brine. the formation of the ore deposit was attributed to the mechanism of “migration at low temperature and precipitation at high temperature”.
出处
《矿床地质》
CAS
CSCD
北大核心
1998年第4期343-354,共12页
Mineral Deposits
基金
自然科学基金
关键词
金矿床
汞
锑
有机成矿流体
卡林型金矿
organic ore forming fluid, Carlin type gold deposit, Lannigou
