Differential structure of Ordovician karst zone and hydrocarbon enrichment in paleogeomorphic units in Tahe area, Tarim Basin, NW China

ZHANG San,JIN Qiang,HU Mingyi,HAN Qichao,SUN Jianfang,CHENG Fuqi,ZHANG Xudong

Fig. 4. Karst fracture-caves and structural combination of karst zones in karst valley. (a) Wave impedance seismic profile along the underground river; (b) Structure profile of the underground river and karst zones; (c) Overlay map of the karst landform, ant attributes slice and the upper and lower underground rivers.