【摘 要】
：
赣西卡林型金矿床的包裹体地球化学研究表明，金矿主成矿温度为１００～２００℃，平均１５０℃左右，成矿流体盐度为１．９ｗｔ％ＮａＣｌ～８．６ｗｔ％ＮａＣｌ，成矿压力为２４７×１０５Ｐａ～６０８×１０５Ｐａ，成矿流体属Ｋ＋－Ｃａ２＋－ＳＯ２－４－（Ｆ－）－ＣＯ２型，ｐＨ为３．６～４．１，是以大气降水为主，混有建造水及少量岩浆水的混合流体。
【机 构】
：
中国有色金属工业总公司矿产地质研究院
论文部分内容阅读
赣西卡林型金矿床的包裹体地球化学研究表明，金矿主成矿温度为１００～２００℃，平均１５０℃左右，成矿流体盐度为１．９ｗｔ％ＮａＣｌ～８．６ｗｔ％ＮａＣｌ，成矿压力为２４７×１０５Ｐａ～６０８×１０５Ｐａ，成矿流体属Ｋ＋－Ｃａ２＋－ＳＯ２－４－（Ｆ－）－ＣＯ２型，ｐＨ为３．６～４．１，是以大气降水为主，混有建造水及少量岩浆水的混合流体。研究认为，区内金矿主要是以金硫络合物形式，在较高温度（２２０～３００℃）体系为还原态的条件下进行迁移，温度降低为１５０℃左右，ｆｓ２较低，有黄铁矿及富砷黄铁矿存在时，在低压较氧化的有利构造处沉淀富集成矿。
The inclusion geochemistry of Carlin-type gold deposits in western Jiangxi shows that the main metallogenic temperature of gold mine is about 100 ~ 200 ℃ with an average of about 150 ℃. The salinity of ore-forming fluid is 1.9wt% NaCl ~ 8.6wt% NaCl, The metallogenetic pressure is 247 × 105Pa ~ 608 × 105Pa, and the ore-forming fluid is K + -Ca2 + -SO2-4- (F -) - CO2, with a pH of 3.6 ~ 4.1. There is a mixture of water and a small amount of magma water. The study suggests that the gold deposits in the area mainly migrate in the form of gold-sulfur complexes under the condition of the higher temperature (220-300 ℃) system being in the reduced state, the temperature is reduced to about 150 ℃, the fs2 is lower, and the yellow In the presence of iron ore and arsenic-rich pyrite, mineralization is precipitated at the favorable structure of low-pressure oxidation.
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