Grain-size control on lacustrine fan-delta architecture in source-tosink steep-slope zones: Insights from field surveys and flume-tank experiments. - Sun, Long; Wu, Sheng-He; Yue, Da-Li; Jiang, Si-Chong; Xu, Zhen-Hua; Zhang, Ke; Yang, Li-Jun; Li, Ji-Ye (Petroleum Science (KeAi Communications Co.), 2026)