天然气水合物赋存区麻坑地貌特征及其地质灾害意义  

Characteristics of Pockmark Geomorphology in Gas Hydrate Occurrence Area and Its Geological Hazards Significance

作　　者：曹超[1] 潘翔[1] 蔡锋[1] 陈庆辉[1] 郑勇玲[1] 吴承强[1] 宋志晓[1] 卢惠泉[1] 鲍晶晶[1] CAO Chao;PAN Xiang;CAI Feng;CHEN Qinghui;ZHENG Yongling;WU Chengqiang;SONG Zhixiao;LU Huiquan;BAO Jingjing(Third lnstitutc Of Occanography,Statc Occanic Administration,Xiamen 361005,China)

机构地区：[1]国家海洋局第三海洋研究所,厦门361005

出　　处：《海洋开发与管理》2018年第7期52-55,共4页Ocean Development and Management

基　　金：国家自然科学基金(41406059;41276058);福建省自然科学基金(2016J01190);海洋地质国家重点实验室开放基金(MGK1604);国家海洋公益性科研专项(201505012);国家海洋局第三海洋研究所基本科研业务费(海三科2016037)

摘　　要：文章通过对天然气水合物资源及其赋存区典型地貌体特征的分析,梳理了天然气水合物赋存区和麻坑地貌体的地质灾害类型,阐述了由于天然气水合物分解释放造成海底滑坡、滑塌和甲烷气体大规模逸散,继而引起海底输电或通信电缆毁坏、海洋石油钻井平台垮塌,甚至海啸和全球气候变暖等严重灾害。为天然气水合物勘探和开采提供有益参考。Based on the analysis of natural gas hydrate resources and the typical geomorphology features of their occurrences,the paper combed the geological disasters of natural gas hydrate oc currences and pockmark geomorphology. The effects were introduced including natural gas hydrate decomposition and release on submarine landslides, collapse and large scale escape of methane gas which in turn led to the destruction of submarine transmission or communication ca bles,offshore oil rig collapse,and even tsunamis and global warming and other serious disasters. A scientific basis for gas hydrate exploration and exploitation was also provided.

关 键 词：天然气水合物 麻坑地貌 地质灾害 环境效应 南海北部陆坡 

分 类 号：P74[天文地球—海洋科学]