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黔南桂西早三叠世斜坡相沉积物中,各种类型的碳酸盐岩重力流沉积物非常发育。其中常常见到与颗粒流、泥石流沉积物的结构、构造迥然不同的粗碎屑重力流沉积物。这类沉积物灰泥基质含量极少,砾石含量高,分选极差,具有明显的颗粒长轴定向组构和一系列滑动沉积标志。这些特征表明,沉积物既不是由颗粒碰撞产生的分散应力起支撑作用的颗粒流产物,也不是由具有一定强度的灰泥基质起支撑作用的泥石流沉积物。
In the Early Triassic ramp facies deposits in the southern Guangxi province, various types of carbonate rock gravity flow sediments are well developed. Often, coarse-grained gravity-flow sediments are found that are quite different from the structure and composition of the particle flow and debris flow deposits. This kind of sediment contains very little stucco matrix, high gravel content, very poor sorting, obvious directional structure of long axis of grain and a series of sliding sedimentary signs. These features indicate that the sediment is neither a supporting particle flow product nor the supporting debris flow sediment that is supported by the dispersed stress generated by particle collisions.