Crystallinity,polytype,and morphology of clay minerals in the Luochuan loess-palaeosols in Shaanxi Province,northwest China were studied in order to have an ins
Liangjia Village earth fissure,one of the 79 earth fissures along the Kouzhen-Guanshan fault located in the northern Weihe Basin,causes severe damage to buildin
Unconventional reservoirs are generally characterized by low matrix porosity and permeability,in which natural fractures are important factors for gas productio