reef facies [海洋] 礁相
fore-reef facies 礁前相
off-reef facies [地质] 礁外相 ; 离礁岩相
organic reef facies 生物礁相
back-reef facies 礁后相
off -reef facies 礁外相
reef facies carbonate rocks 礁相碳酸盐岩
reef-core facies 礁核相
The predicted Cangxi reef and shoal facies show the characteristics of typical progradational sequence stratigraphy with reliable push-down.
预测的苍溪礁滩相具有典型的进积型层序地层特征，在地震剖面上并且具有可靠的波组下拉现象。
The eastern reef island area, with shallow seawater, is higher parts of Xisha apophysis, where the basement is directly covered with reef facies carbonate rocks.
东部岛礁区为西沙隆起的较高部位，海水较浅，基底之上直接覆盖礁相沉积地层。
Because reefs are peculiar ecosystems extremely sensitive to environment change, late Permian volcanism would surely have affected the reef growth and evolution of facies.
生物礁是一种对海洋环境十分敏感的生态系，晚二叠世的火山作用势必影响到当时生物礁的生长和沉积相的演化。
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