鄂尔多斯盆地西缘桌子山地区上奥陶统拉什仲组深水复合流沉积

李向东, 陈海燕, 陈洪达

Deep-water Combined-flow Deposits of the Upper Ordovician Lashenzhong Formation in Zhuozishan Area, Western Margin of Ordos Basin

Xiangdong Li, Haiyan Chen, Hongda Chen

图7 复合流沉积示意图[21] Uw：波轨迹速度；Uc：单向流速度；NM：无颗粒移动；CFR：复合流痕；HCS：丘状交错层理；PB：平行层理；脉动流、反向流的解释见文中；Lamb等[21]用图（a）和(b)解释流体速度较大的近源沉积；用图(c)和(d)解释流体速度较小的远源沉积

Fig.7 Cartoon for deposition of combined-flow[21] Uw. Wave orbital velocity; Uc. Unidirectional current velocity; NM. No Movement; CFR. Combined-Flow Ripples; HCS. Hummocky Cross-Stratification; PB. Plane Bed; See text for explanation of reversing-current flow and pulsating flow; Lamb et al.[21] interpret proximal deposition (higher flow velocity) of turbidity currents with plot (a) and (b), and distal case (lower flow velocity) with plot (c) and (d)