Up to date,high-resolution paleo-weathering record of the Early Pleistocene Wucheng Loess Formation has been only generated in the Lingtai loess-soil section while those for the Xifeng and Changwu sections cover only the past 1.

The Early Pleistocene Wucheng Loess Formation at Luochuan was previously divided roughly into six units (WS 1, WL 1, WS 2, WL 2, WS 3 and WL 3), but on the basis of our recent studies it is subdivided into eighteen loess beds and eighteen soils, similar to those in the Baoji loess section.

Numerical simulation on ground movement and deformation of mine ground in loess hilly area;

This paper analyses the grain-size features of the loess in Xingshan of Siping and the result shows its features:①the size classification is bad and the main grain size is larger than 7.

The paper summed up years of experience in mountain seismic exploration and made an analysis of the mountain loess plateau,three-dimensional seismic exploration technical problems,and by the examples proved that the taken technical measures and data processing technology are effective,which provided a reference for the similar three-dimensional exploration.