Through the bedding distribution statistical analysis, studies the palaeocurrent during sedimentation.

通过对层理分布统计分析，沉积时古水流方向。

Palaeocurrent measurements suggest a northward direction,indicating that the Kunlun area was at low elevation.

中新世沉积以细颗粒泥岩和砂岩，明物源区较远 ，古流域坡度较小，搬运距离较长。