湘桂地区泥盆系硅质岩稀土元素地球化学及沉积环境

对湘桂地区泥盆系钦防海槽和南丹－河池台盆及灵山－衡阳台盆中发育的硅质岩的稀土元素地球化学分析，给出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，为证实丹治台盆及灵衡垮台 盆形成为线性走滑作用所致提供了新的证据。

REE Geochemistry and Sedimentary Environment of Devonian Cherts in Guangxi and Hunan

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.