They are mainly lithic arkosic sandstones and feldspar-lithic quartzose sandstones and are characterized by good sorting, higher textural maturity, fine granularity, lower compositional maturity and development of large-scale cross bedding, showing relatively distinct eolian features.

  • 它们以良好的分选性和较高的结构成熟度、较细的粒度、较低的成分成熟度和大型交错层理的发育为特征,显示出较为明显的风成沉积特点。

  • 互联网摘选 2025-01-19 23:25:10

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