摘要
以殷家沟剖面为主，探讨了银母寺铅锌矿床含矿地层的沉积环境，提出合矿地层主要为生物礁相岩石。矿床是在成岩期由合矿热卤水沿断裂多次上升、交代沉淀在礁顶相岩石中形成的。礁相岩石为含矿热卤水交代沉淀提供了有利的物化环境及场所。
The sedimentary environments of the ore-bearing strata within the Yingmusi lead-zinc deposit are discussed exemplified by the Yingjiagou section. The ore-bearing strata consistsignificantly of organic reef factes rocks. The ore deposit was formed by the multistage upward flowing,metasomatism and preCipitation if the ore-bearing hydrothermal brines inthe rocks of the reef-cap factes. The reefal rocks are considered to be the favourable locusfor the metasomatism and precipitation of the ore-bearing hydrothermal brines.
基金
地矿部七.五重点攻关项目
关键词
铅锌矿床
含矿地层
沉识环境
秦岭
organic reef facies,reef-cap facies,structural fault,ore-bearing hydrothermal brine,lead-zinc orebody
