The sedimentary environments of the Devonian carbonate formations in southern Hunan, China can be divided into four types: platform, open marine shelf, bioherm, and platformbasin facies.
湘南泥盆系碳酸盐岩的沉积环境，可以区别为四种类型：台地相、广海陆棚相、生物礁相及台盆相。
The Miaohe-type biotas occur in the black shale and siliceous shale in the transitional areas from the late open platform facies to deep-water shelf-bathyal facies.
庙河型生物群的产出位于晚期开阔台地向深水陆棚-次深海过渡相区中的黑色页岩、硅质页岩中，其沉积环境为最大浪基面以下的宁静、贫氧环境，其沉积方式为悬浮沉积。
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