Channels are incised by streams into the underlying red siltstones.
古河道由水流切割而侵入下伏的红色粉砂岩中。
2
Hot event deposits occurred in Liantuo Formation of Lower Sinian, interbedded in fluvial facies sandstones and siltstones.
热事件沉积产物见于下震旦统莲沱组,夹于河流相沉积的砂岩及粉砂岩中。
3
Impermeable formations, such as shales and siltstones, tend to be finer grained or of a mixed grain size, with smaller, fewer, or less interconnected pores.