深水斜坡类型与沉积过程及其产物研究进展

An Overview of Deep-water Slope Types and Their Corresponding Sedimentary Processes and Productions

深水斜坡沉积规律对深水油气勘探开发以及深水地质灾害防护具有重要的意义,因此深水斜坡沉积过程一直是海洋地质学家关注的焦点。但是由于海底斜坡沉积类型多样,影响因素众多,导致深水斜坡沉积过程及其产物极其复杂。因此,为了更加全面系统的研究深水斜坡沉积规律,有必要对深水斜坡沉积研究进展进行系统的总结和梳理。通过对前人研究成果的分析,从深水斜坡发育的不同背景出发,将深水斜坡划分为三种类型:陆架斜坡、碳酸盐斜坡以及火山斜坡,并综述了近年来不同类型斜坡沉积过程及其产物的研究进展,以期望为我国南海深水斜坡沉积过程研究以及深水油气勘探有所启示。

Depositional processes in deep-water slopes have been an important research focus for marine geologists because they have significant implications for deep-water hydrocarbon exploration and deep-water geological hazard prevention. Due to multiple sedimentary types and lots of controlling factors, the sedimentary processes on the deep-water slope and these productions are very complex. Therefore, it is necessary to summarize and organize research advances of deep-water slope sedimentology to help more comprehensively and systematically study deep-water slope sedimentation. Based on sedimentary settings, this paper divides the slopes into three types： continental-shelf slope, carbonate slope, and volcanic slope. The sedimentology of different types of deep-water slopes were overviewed systematically. We expect it to have implications for the study of deep-water slope sedimentation and help improve deep-water hydrocarbon exploration in the South China Sea.