Gravity-Driven Processes: A More Important Transport Mechanism of Deposits in Xiguayuan Formation of Lower Cretaceous in Luanping Basin, Northern Hebei Province

• 责任者：Er Chuang (Research Institute of Petroleum Exploration & Development ; PetroChina ; Beijing 100083 ; China) ; Gu Jiayu
• 刊名：Geological Review
• 出版年：2010
• 卷期：56(3)
• 关键词：搬运作用 ; sediment transport ; 重力滑动 ; gravity sliding
• 页码：p.312-320
• 图表：7 illus., 39 refs.
• 分类号：0803
• issnNo：ISSN0371-5736
• isbnNo：CN11-1952/P

Based on the observation in field, it is indicated that deposits of gravity-driven process are well developed in the Xiguayuan Formation of Low Cretaceous in the Luanping Basin, Northern Hebei. The slide and slump deposits in the Xiguayuan Formation are described. It is indicated that some compression deformations in the outcrop are formed by sedimentary process rather than tectonic origin.  Based on the study on slide and slump (mass movement) and the deposits of sandy debris flow—turbidity current, integrated the results of the former study on fluvial fan—fan delta, gravity-driven process is considered to be the more important transport mechanism.