Sedimentary Characteristics and Hydrocarbon-Generation Potential of the Permian Pingdiquan Formation in Dongdaohaizi Sag, Junggar Basin, Northwest China oleh Xiao Hu, Xuecai Zhang, Jun Xie, Haifang Cao, Xugang Zheng, Zhengquan Zhao, Jianfeng Cao, Qiongyao Pu, Zhe Li, Liang Zhou