鄂西—湘西北地区二叠纪栖霞期岩相古地理*
韦恒叶1,2, 陈代钊1

Lithofacies palaeogeography of the Qixia Age of Permian in western Hubei-northwestern Hunan Provinces
Wei Hengye1,2, Chen Daizhao1
中缓坡相(含)生物碎屑石灰岩(A—灰色厚层状含生物碎屑石灰岩,灰岩底部为约1 cm厚的页岩,恩施剖面;B—眼球状灰岩,眼球为灰泥石灰岩,为风暴引起的沉积物,眼皮为泥质灰岩,为原地沉积,桑植剖面;C—丘状层理,中缓坡典型的沉积构造,恩施剖面;D—生物碎屑石灰岩,含海百合、小型有孔虫和介形虫,海百合破碎严重,桑植剖面,单偏光;E—生物碎屑石灰岩,含海绵骨针,恩施剖面,单偏光;F—生物碎屑石灰岩,含窗格苔藓虫和有孔虫,富含有机质,恩施剖面,单偏光)