Tectonic-lithofacies paleogeography, large-scale source- reservoir distribution and exploration zones of Cambrian subsalt formation, Tarim Basin, NW China

WEI Guoqi,ZHU Yongjin,ZHENG Jianfeng,YU Guang,NI Xinfeng,YAN Lei,TIAN Lei,HUANG Lili

Fig. 1. Schematic tectonic provinces in the Tarim Basin (a), north-south structural-stratigraphic section (b), and generalized stratigraphic column (c). ① Member 2 of the Upper Xiaoerbulak Fm.; ② Member 1 of the Upper Xiaoerbulak Fm.; ③ Member 3 of the Lower Xiaoerbulak Fm.; ④ Member 2 of the Lower Xiaoerbulak Fm.; ⑤ Member 1 of the Lower Xiaoerbulak Fm. AnZ—Pre-Sinian;Nh—Nanhua;Z—Sinian;—C1+2—Middle and Lower Cambrian;—C3—Upper Cambrian;O1—Lower Ordovician;O2+3—Middle-Upper Ordovician;S—Silurian;D—Devonian;C—Carboniferous;P—Permian;T—Triassic;K—Cretaceous;E—Paleogene;N1j—Neogene Jidike Formation;N1k—Neogene Kangcun Formation;N2k—Neogene Kucha Formation.