摘要
对湘桂地区泥盆系钦防海槽和南丹－ 河池台盆（ 沟） 及灵山－ 衡阳台盆（ 沟） 中发育的硅质岩的稀土元素地球化学分析，给出了这些硅质岩为深水盆地沉积环境产物的解释，其成因类型既包括了正常沉积硅质岩，也有部分为原生热水沉积硅质岩。
Based on analysing the rare earth elements and geochemical characteristics of Devonian cherts from Qingzhou-Fangchen ocean trough and Hechi-Nandan platformal basin in Guangxi and Linshan_Hengyang platformal basin in Guangxi_Hunan, it is considered that the sedimentary environment of these cherts is a deep_water basin, and that sedimentary cherts constitute two genetic types, namely normally deposited cherts and hot_water deposited cherts. Furthermore, all these phenomena prove that Hechi-Nandan and Linshan-Hengyang platformal basins were formed by linear strike_slipping tectonic movement in Devonian.
出处
《岩石矿物学杂志》
CAS
CSCD
北大核心
1999年第3期229-236,共8页
Acta Petrologica et Mineralogica
基金
原地矿部重点攻关项目
