摘要
本文研究了桂北龙胜地区晚元古代硅质岩的岩石、地球化学特征。通过对比、认为上元古界丹洲群三门街组中与海底枕状基性熔岩相伴产出的硅质岩及震旦系老堡组硅质岩属热水沉积作用形成。
The lithology and geochemistry of silicalite in the Upper Proterozoic Suera in Longshengarea,northern Guangxi,is studied.By comparisOn,it is considered that the silicalite fromSanmenjie Formation of Danzhou Group of Upper Proterozoic Subera accompanying submarinepillow lava and the silicalite from Laobao Formation of Sinian System belong to hydrothermaldeposition type.
出处
《广西地质》
1995年第1期31-38,共8页
Guangxi Geology
关键词
硅质岩
热水沉积
地球化学
硅质岩
晚元古代
:silicalite,hydrothermal deposition,geochemistry,Longsheng,Guangxi