Distribution characteristics and controlling factors of Wenchang Formation fan in the Enping 17 Sag steep slope zone, Zhujiang River Mouth Basin - Yaping Sui; Guangrong Peng; Wei Wu; Guangxu Wang; Xiaomeng Wang; Zhendong Feng; Jing Yu; Tao Wan; Weiye Zhao (Acta Oceanologica Sinica, 2026)