Geological characteristics and controlling factors of deep tight gas sandstone reservoirs in the Upper Paleozoic of the western Ordos Basin, northwest China - Zou, Chengyu; Fu, Siyi; Hu, Jianling; Hou, Linjun; Chen, Anqing; Xia, Yuqing; Liu, Hao; Yu, Yu; Chen, Hongde (Frontiers in Earth Science, 2025)