Mesozoic Geological Characteristics and Hydrocarbon Exploration Direction in Liupanshan Basin;

Geochemistry of hydrocarbon source rocks in the Liupanshan basin at the northeastern margin of the Qinghai-Tibet Plateau;

Formation and modification history of the Liupanshan basin on the southwestern margin of the Ordos block and tectonic stress field evolution;

Based on the theory of petrolrum system, this article makes an analysis on the formation and evolution process of the Mz petroleum system in the northern part of Liupanshan Basin, as well as the pre-sent characteristics of Mz petroleum system, which guides the petroleum exploration in this area.

Minhe-Liupanshan basins are located in the same structural belt of Hexi aisle and belong to the same south edge of ancient continent in north of China,among them Liupanshan basin is the eastward-extending part of the basins in Hexi aisle,both of them have very good geological conditions of petroleum.

In this paper the formation conditions of interlayer oxidation zone sandstone type copper(uranium) deposits in the Liupanshan region are analyzed from the stratigraphic basin,geochronologic and geochemical environment,the target horizon,epigenetic aiteration,as well as hydrogeological conditions.

The hard soil and soft rock is one kind of special weak rocky soil which in the Ningxia Liupanshan area highway construction often meets, it has the adverse effect to the road side slope stability.