CAJ | 학술논문

海底滑坡广泛发育于海底陆坡，是一种常见的沉积作用过程。滑坡的存在与天然气水合物的形成和赋存具有紧密的联系。国内外对海底滑坡及其与天然气水合物关系的研究尚处于起步阶段，且主要集中在滑坡体的构成、识别和触发机制及与天然气水合物的空间关系上，但对于时序性的研究尚处于空白。根据现有研究的深度和有限的资料，本文对此进行了定性探讨。研究表明，天然气水合物与海底滑坡在时序性上可分为三种类型：后水合物滑坡(post-gas hydrate landslide)、前水合物滑坡(pre-gas hydrate landslide)和同水合物滑坡(syn-gas hydrate landslide)。不同的类型对于天然气水合物的赋存与开采会产生不同的影响。三种类型中以前水合物滑坡对于天然气水合物的赋存和开采最为有利，同水合物滑坡次之。
해저활파엄범발육우해저륙파，시일충상견적침적작용과정。활파적존재여천연기수합물적형성화부존구유긴밀적련계。국내외대해저활파급기여천연기수합물관계적연구상처우기보계단，차주요집중재활파체적구성、식별화촉발궤제급여천연기수합물적공간관계상，단대우시서성적연구상처우공백。근거현유연구적심도화유한적자료，본문대차진행료정성탐토。연구표명，천연기수합물여해저활파재시서성상가분위삼충류형：후수합물활파(post-gas hydrate landslide)、전수합물활파(pre-gas hydrate landslide)화동수합물활파(syn-gas hydrate landslide)。불동적류형대우천연기수합물적부존여개채회산생불동적영향。삼충류형중이전수합물활파대우천연기수합물적부존화개채최위유리，동수합물활파차지。
As a common depositional process, the submarine landslides widely developed in the continental slopes. Although the co-existence of submarine landslides gas-hydate is common, very little is known about the relationship between the submarine landslides and the formation of gas-hydrates. The previous study on submarine landslides and gas-hydrates mainly focused on composition, nature, identification, and the triggering mechanism of the submarine landslides, and the spatial relationship between the gas-hydrate and submarine landslides. However, the study of time sequence and the relation between gas hydrate and submarine landslide is still less known. Due to the limitation of available data, this paper gives a preliminary qualitative study. The results show that submarine landslides can be divided into three types: post-gas hydrate landslide, pre-gas hydrate landslide, and syn-gas hydrate landslide according to time sequence. The different types of landslides have different effects on the preservation and exploitation of the gas-hydrates. The pre-gas hydrate landslides are most favorable for the preservation and exploitation of the gas-hydrate, while the syn-gas hydrate landslides are the secondary favorable sites.