Lithofacies paleogeography restoration and its significance of Jurassic to Lower Cretaceous in southern margin of Junggar Basin, NW China

GAO Zhiyong,SHI Yuxin,FENG Jiarui,ZHOU Chuanmin,LUO Zhong

Fig. 5. Sedimentary characteristics from Middle Jurassic to Lower Cretaceous of Well Gao101 core (a, b) and outcrops of middle-east part (c) in southern margin of Junggar Basin. c-I: Braided delta plain deposits of Badaowan Formation in Toutunhe outcrop; c-II: The positive rhythm of the braided channel sandstone and the deformation structure of the channel sand in the Badaowan Formation of the Toutun River outcrop; c-III: Reverse rhythm of lacustrine mudstone-sheet sandstone-bar-underwater distributary channel deposition at the delta front of the Sangonghe Formation in the Hutubi River outcrop; c-IV: Marsh coal deposits of Xishanyao Formation in Toutunhe outcrop; c-V: Fluvial facies sand bodies and positive rhythm deposits of Toutunhe Formation in Manas River outcrop; c-VI: Trough-like cross-bedding of fluvial sand bodies of Toutunhe Formation in Manas River outcrop; c-VII: Large-scale cross-bedding of fluvial sand bodies of Qigu Formation in Hutubi River outcrop; c-VIII: Schistose deposits of alluvial fan conglomerates of the Karazha Formation in the Manas River outcrop; c-IX: The distributary channels of the fan delta front of the Lower Cretaceous Qingshuihe Formation in the Hutubi River outcrop are scoured and cut by each other; c-X: Small-scale ripple bedding of bar in the front of the fan delta of the Qingshuihe Formation on the Manas River outcrop.