有机质在金银低温成矿作用中的实验研究

EXPERIMENTAL STUDIES ON ROLE OF ORGANIC MATTER DURING MINERALIZATION OF GOLD AND SILVER AT LOW TEMPERATURES

本文实验内容包括Ａｕ、Ａｇ元素在低熟高硫原油及其共存的水溶液中的分配特征，水－油－岩（矿）反应体系中Ａｕ、Ａｇ活化和迁移的能力，以及在共同源岩和温度，压力共同作用的压力机系统中，石油生成和初次运移过程对Ａｕ的富集能力等。结果证明，在一定的成熟度范围内Ｒ０＜０．９００％）原油可能成为Ａｕ、Ａｇ运移和富集的重要载体以及成矿流体的重要组成部分。

This paper deals mainly with (1)partition of Au and Ag in coexisting phases of lower maturity and high sulphur crude oil and aqueous solution;(2)mobilization and transport abilities of Au and Ag during the interaction of water,oil,and rock (ore);(3)enrichment ability of Au by crude oil during oil generation and primary migration within double source system and under the experimental temperature and pressure.Under the condition of R0≤0.90%,crude oil might become potential carriers of Au during transport, and also become an important part of forming-ore fluids.