下刚果盆地早白垩世巴雷姆晚期深水重力流沉积的发现及意义*
余烨1,2, 王莉1,2, 尹太举3, 张兴强3, 黄俨然1,2, 曹涛涛1,2

Discovery and significance of deep-water gravity-flow deposits of the late Barremian of Early Cretaceous in Lower Congo Basin
Yu Ye1,2, Wang Li1,2, Yin Tai-Ju3, Zhang Xing-Qiang3, Huang Yan-Ran1,2, Cao Tao-Tao1,2
下刚果盆地下白垩统巴雷姆阶Pointe Indienne组碎屑流沉积特征 a—X2井,1217.85 m,砂质碎屑流,砂岩顶、底突变接触,底部可见负载构造;b—X1井,1199.63 m,砂质碎屑流,大型漂浮泥岩碎屑,直径大于10 cm,泥岩碎屑内部层理明显;c—X4井,1172.94 m,砂质碎屑流,大型漂浮泥岩碎屑,直径达7 cm,泥岩碎屑内部褶皱变形;d—X4井,1135.01 m,砂质碎屑流,正递变特征,砂层近顶部长条形漂浮泥岩碎屑,具定向排列;e—X4井,1131.56 m,砂质碎屑流,反递变特征,砂岩近底部长条形漂浮泥岩碎屑,具定向排列;f—X2井,1185.71 m,砂质碎屑流,砂岩中部富含细小的漂浮泥岩碎屑;g—X2井,1187.51 m,泥质碎屑流,长条形漂浮泥岩碎屑,向上逐渐变短;h—X2井,1188 m,泥质碎屑流,大型扁平状漂浮泥岩碎屑,长约9 cm;i—X4井,1202.62 m,泥质碎屑流,富含漂浮泥岩碎屑,大型泥岩碎屑内部褶皱变形;j—X4井,1130.66 m,砂质碎屑流,泥包砾结构,砂质团块直径约5.5 cm,泥岩外壳厚约1.5 cm