摘要
从野外地质产状、岩石化学、有机岩石学、元素地球化学、有机地球化学等方面详细分析了滇中砂岩铜矿成矿过程中的水－岩反应证据，阐明了成矿过程中水－岩反应的机理，其中包括渗滤作用、扩散作用、混染作用、交代作用、交代溶蚀作用。
In this paper some evidence is collected for water rock interactions during the mineralization of sandstone hosted. copper deposits in Central Yunnan Province, China, based on studies of field geological occurrence, petrochemistry, organic petrology, element geochemistry, and organic geochemistry. Mechanism of water rock reaction discussing in the present paper involve filtration, hybridization, replacement, metasomatic alteration, redox and boiling. The results obtained demonstratethat:(1) the water rock interactions were responsible for the mineralization of copper , and the reactions carried out in two stages:diagenetic stage and transformation stage;(2) during the diagenetic mineralization, filtration, hybridization and metasomatic alteration were predominant;however, boling and redox were predominantly important during the transformation;(3) water rock reaction during transformation superimposed, at some extent, on products formed during diagenetic interactions.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1996年第3期327-331,共5页
Earth Science-Journal of China University of Geosciences
基金
国家自然科学基金
有机地球化学国家重点实验室
关键词
砂岩
铜矿床
成矿作用
水-岩反应
sandstone hosted copper deposits, mineralization, water rock interaction, evidence and mechanism, central Yunnan Province.
