凹坑pool，chute白垩chalk白云化灰岩dolomitized limestone白云母muscovite白云石dolomite白云岩dolostone, dolomitite斑点构造mottled structure斑礁patch reef斑晶porphyrotope斑脱岩bentonite搬运作用transportation板状晶体laths半深海helmipelagic半自形晶subhedral棒形蛀木虫迹teredolites clavatus包卷层理convolute lamination包卷构造comvolute structure堡礁(障壁礁) barrier reef抱球虫软泥globigerina ooze比拟试验模式scaled experimental model碧玉jasper边滩point bar辫状河braided channel标志层key bed标准偏差standard deviation表面结构surface texture表皮鲕superf
