河南东濮凹陷古近系沙三中亚段重力流沉积与伴生遗迹化石组合*
张洪安1, 王长征2, 蒋飞虎1, 靳亚勤1, 胡斌2,3

Gravity flow deposits associating with ichnoassemblages within the middle Member 3 of Paleogene Shahejie Formation in Dongpu sag, Henan Province
Zhang Hong-An1, Wang Chang-Zheng2, Jiang Fei-Hu1, Jin Ya-Qin1, Hu Bin2,3
东濮凹陷古近系沙河街组沙三中亚段碎屑流与浊流沉积特征 A—砂岩层上部的漂浮砾,块状层理,卫47井,2868im;B—块状构造的砂岩中可见“泥包砾”現象,濮75井,3490im;C—砂岩底与暗色泥质沉积呈突变接触,砂岩底部的泥岩撕裂屑呈长条状分布,文13-26井,3459im;D—灰色砂岩底面的不规则槽模,桥16井,3005im;E—灰色砂岩底面的重荷模,桥16井,3923im;F—灰色砂岩底面的冲刷痕现象,胡19井,1847im;G,H—浊流沉积序列,分别产自文 200-6井(3389im)和濮75井(3495.10im)