东海北部外陆架及邻区灾害地质体特征及成因研究  

Characteristics and origin of disaster geological bodies in the northern outer shelf of the East China Sea and its adjacent areas

作　　者：陈珊珊[1,2,3] 王中波 张勇[1,3] 张志珣 赵维娜[3,4] 钟伟杰 CHEN Shanshan;WANG Zhongbo;ZHANG Yong;ZHANG Zhixun;ZHAOWeina;ZHONG Weijie(Key Laboratory of Gas Hydrate,Ministry of Natural Resources,Qingdao Institute of Marine Geology,Qingdao 266071,Shandong,China;Key Laboratory of Marine Geology and environment,Chinese Academy of Sciences,Qingdao 266071,Shandong,China;Laboratory for Marine Mineral Resources,Qingdao National Laboratory for Marine Science and Technology,Qingdao 266071,Shandong,China;Qingdao Research Institute,Northwestern Polytechnical University,Qingdao 266200,Shandong,China;Shandong Coal Field Geological Planning and Exploration Institute,Jinan 250104,Shandong,China)

机构地区：[1]自然资源部天然气水合物重点实验室,青岛海洋地质研究所,山东青岛266071 [2]中国科学院海洋地质与环境重点实验室,山东青岛266071 [3]青岛海洋科学与技术试点国家实验室海洋矿产资源评价与探测技术功能实验室,山东青岛266071 [4]西北工业大学青岛研究院,山东青岛266200 [5]山东省煤田地质规划勘察研究院,山东济南250104

出　　处：《中国地质》2020年第5期1512-1529,共18页Geology in China

基　　金：国土资源部地质调查专项(DD20160137,GZH201400201,DD20160138,DD20190208,DD20190205);中国科学院海洋地质与环境重点实验室开放基金项目(MGE2019KG01);国家自然科学基金项目(41706069,41876059,41806048)联合资助。

摘　　要：基于“1∶100万海洋区域地质调查”项目在东海北部实测的高分辨率浅地层剖面资料,对东海北部外陆架及邻区主要灾害地质体的内部反射结构、外部形态等地震反射特征进行了总结,识别出了高角度活动断层、海底火山、岩浆底辟、海底滑坡、埋藏古河道、埋藏古三角洲、古潮流沙脊等多种灾害地质体类型,并对这些海洋灾害地质体的分布、成因以及各种灾害地质体对海上油气勘探及海洋工程建设的影响等多个方面进行深入的探讨。这些灾害地质体的识别可以很好的为该区的海上生产活动及工程建设提供减灾防灾参考。Based on the high-resolution shallow seismic profiles measured in the northern outer shelf of the East China Sea by the"1∶1000,000 marine regional geological survey"project,the authors summarized the internal reflection structure,external morphology and other seismic reflection characteristics of the disaster geological bodies in the northern outer shelf of East China Sea,and identified various types of hazard geological bodies such as high angle active faults,submarine volcanoes,magmatic diapirs,submarine landslides,buried ancient channels and buried ancient delta and tidal sand ridges.The distribution,genetic mechanism of various disaster geological bodies were concluded,and the influence of disaster geological bodies on marine oil and gas exploration and marine engineering construction were discussed.The identification of these disaster geological bodies can provide valuable references for the marine production activities and engineering construction in the study area.

关 键 词：灾害地质体 浅地层剖面 海洋地质调查工程 东海北部外陆架 

分 类 号：TE122[石油与天然气工程—油气勘探]