摘要
本文详细讨论了鄂东南地区与岩浆活动有关矿床中的矿物包裹体的一般特征和温度特征等与矿化发育间的关系;探索了不同成矿阶段、成矿溶液的演化趋势;探讨了由气相成分反映的成矿流体的性质及其相对差异。按照磁铁矿爆裂温度和包裹体气相成分,估算了成矿的氧逸度条件,探讨了从成岩向成矿氧逸度降低的原因。
In the present paper, the author details the relationship between the mineralization development and the general characteristics, temperature characteristics, etc. of mineral inclusions within ore deposits related to the magmatic activities in southeastern Hubei area; the author researches into the evolutionary trend of the minerogenic solutions of various minerogenic stages, and the minerogenic fluid characters and their relative differ-ences reflected by the pneumatogenic components; based on the magnetite explosion tem-perature and pneumatogenic components of the inclusions, the author estimates the condi-tions for minerogenic oxygen fugacity and researches into the reasons for the decreases of oxygen fugacity from diagenesis to minerogenesis.
关键词
鄂东南
铁铜矿床
矿物包裹体
还原参数
逸度系数
氧逸度
Sortheastern Hubei
Fe-Cu ore deposit
Mineral inclusion
Reduction parameter
Fugacity coefficient
Oxygen fugacity
