B. sandstone with hummocky or sunken crossbedding and parallel bedding;
具丘状、洼状交错层理或平行层理的砂岩；
2
High Angle tabular crossbedding and low Angle wedge crossbedding are generally found on the cross section of the dunes.
沙丘内部发育有高角度板状交错层理、低角度楔状交错层理等层理构造。
3
Mean permeability of massive bedding fine shingle lithofacies and mean porosity of reverse crossbedding fine sand lithofacies are the biggest in all of lithofacies.