open platform facies

Yeyungou Formation mainly developed carbonate slope facies, deep water basin facies and a little carbonate open platform facies.

野云沟组主要为斜坡相和盆地相沉积，少量为碳酸盐台地相沉积。

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。

Although in the early stage of Qixia formation the sea level began to rise, sealevel elevating movement was not stopped until the last stage of Maokou formation, it's still open platform facies.

栖霞组早期海平面开始上升，之后虽然还存在海平面的升降运动，但一直到茅口组末期都一直为开阔台地相。