秦岭银母寺铅锌矿床含矿地层沉积环境探讨

基金项目:

地矿部七·

五重点攻关项目资助课题

SEDIMENTARY ENVIRONMENTS OF THE ORE-BEARING STRATA WITHIN THE YINGMUSI LEAD-ZINC DEPOSIT IN THE QINLING MOUNTAIN AREA

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,提出含矿地层主要为生物礁相岩石。矿床是在成岩期由含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。
- 生物礁相 /
- 礁顶相 /
- 构造断裂 /
- 含矿热卤水 /
- 铅锌矿体
Abstract: 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 consist significantly of organic reef facies rocks. The ore deposit was formed by the multistage upward flowing,metasomatism and precipitation of the ore-bearing hydrothermal brines in the rocks of the reef-cap facies. The reefal rocks are considered to be the favourable locus for the metasomatism and precipitation of the ore-bearing hydrothermal brines.
- organic reef facies /
- reef-cap facies /
- structural fault /
- ore-bearing hydrothermal brine /
- lead-zinc orebody