The carbonate platform sedimentary system is further divided into such facies as restricted platform, open platform, platformmargin reef and ramp.
碳酸盐台地沉积体系又可进一步分为局限台地、开阔台地、台地边缘礁滩及缓坡等沉积相。
2
Organic reefs in the study region form a patch reef group on the carbonate platformmargin ramp and they are interruptedly distributed along the platformmargin.
研究区的生物礁为碳酸盐台地边缘缓坡点礁群，沿着台地边缘断续分布。
3
In this paper, it is suggested that the Ordovician sedimentary facies in the Yichang region are a combination type consisting of platform facies, platformmargin facies and shallow sea basin facies.