5亿年前中寒武世，它是目前最古老的类似苔藓植物，对研究藓类植物和高等植物的起源和演化具有重要意义。
第一期北西向褶皱构造为轴向北西的断层转折褶皱，形成于中寒武世—泥盆纪，它们当时都是一些“水下隆起” ，在全区均有分布。
The first generational northwest folds were fault band folds, formed during Middle Cambrian to Devonian, which were "under water uplift", distributed over the whole studied area.
该风暴岩的发现对重建鄂东黄石地区中晚寒武世古地理及区域地层对比具有重要意义。
The discovery of the tempestites is of great significance to restructure the palaeogeography of Middle-Late Cambrian in Huangshi, eastern Hubei Province.
华北石炭纪岩溶型铝土矿的主要物质来源为下伏的晚寒武世—中奥陶世碳酸盐岩。
The material source of the Carboniferous karst type bauxite in North China mainly came from the underlying Late cambrian-middle Ordovician carbonate rock.
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