水下沉积物重力流与海底扇相模式研究进展

傅焓埔, 刘群, 胡修棉

Review on Subaqueous Sediment Gravity Flow and Submarine Fan

Hanpu Fu, Qun Liu, Xiumian Hu

图2 水下沉积物重力流的沉积序列[3,34,35] (a) 浊流沉积，显示正递变与牵引流结构[3]；(b) 碎屑流沉积，整体混乱无序[3]；(c) 混合流沉积，底部为浊流沉积，向上为碎屑流沉积，顶部为稀释的浊流沉积[34]；(d) 异重流沉积，底部发育逆粒序，向上为典型浊流沉积，发育侵蚀界面[35]

Fig.2 The sedimentary sequences of subaqueous sediment gravity flow[3,34,35] (a) Turbidite with normal grading and traction flow structure[3]； (b) Debrite with chaotic disorder[3]； (c) Hybrid event bed composed by bottom turbidite, milled debrite and upper dilute turbidity current deposits[34]； (d) Hyperpycnal flow deposits with bottom inverse grading and erosive contacts[35]