志留纪(Silurian Period)(笔石的时期,陆生植物和有颌类出现)是早古生代的最后一个纪,也是古生代第三个纪。本纪始于距今4.38亿年,延续了2500万年。
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The landslide occur in the Gao Jabian shale of Silurian Period.
滑坡体为志留系高家边组页岩。
Porphyry mineralization, occurred in the Silurian Period, finally formed ore bodies.
晚期矿化发生于志留纪,使矿床最终形成。
In the Ordovician, Silurian Period, the Devonian, Carboniferous, the advent of low amphibians and ancient ancient reptiles.
在奥陶纪、志留纪、泥盆纪、石炭纪,相继出现低等鱼类、古两栖类和古爬行类动物。
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