渤海海峡跨海通道地区海洋地质调查研究进展  

Research progress of marine geological survey of the Bohai Strait

作　　者：陆凯[1,2,3] 褚宏宪 孙军 李攀峰[1,2] 赵铁虎 虞义勇[1,2] 梅赛 冯京[1,2] 方中华 LU Kai;CHU Hongxian;SUN Jun;LI Panfeng;ZHAO Tiehu;YU Yiyong;MEI Sai;FENG Jing;FANG Zhonghua(Qingdao Institute of Marine Geology,China Geological Survey,Qingdao 266071,Shandong,China;Laboratory for Marine Mineral Resources/Qingdao National Laboratory for Marine Science and Technology,Qingdao 266071,Shandong,China;College of Marine Geosciences/Ocean University of China,Qingdao 266110,Shandong,China;Yantai Center of Coastal Geological Survey,China Geological Survey,Yantai 264000,Shandong,China)

机构地区：[1]中国地质调查局青岛海洋地质研究所,山东青岛266071 [2]海洋矿产资源评价与探测技术功能实验室/青岛海洋科学与技术试点国家实验室,山东青岛266071 [3]中国海洋大学/海洋地球科学学院,山东青岛266100 [4]中国地质调查局烟台海岸带地质调查中心,山东烟台264000

出　　处：《地质通报》2021年第2期287-297,共11页Geological Bulletin of China

基　　金：中国地质调查局项目《渤海海峡跨海通道地壳稳定性调查评价》(编号:GZH201200504);中国地质调查局项目(编号:DD20211553、DD20191003、DD20190208、DD20190365);国家自然科学基金项目(批准号:41276060、41330964)。

摘　　要：通过高分辨率浅地层剖面、小道距高分辨率多道地震、侧扫声呐、表层地质取样、地质钻探等调查手段,查明渤海海峡跨海通道区海底地形地貌、底质类型及分布、地层结构、活动断裂、地震活动性、地应力等基础地质特征,归纳总结海底浅表层地质灾害、第四纪地层格架与古环境演化、阐述渤海海峡跨海通道区地壳稳定性评价的主要进展成果。渤海海峡活动断裂较为发育,新构造运动活跃,地壳稳定性评价属于不稳定区域,东侧北黄海盆地区域地壳稳定性相对较好,西部渤海盆地区域和海峡区南部区域稳定性较差。渤海海峡最新调查成果为跨海通道工程建设提供基础资料和决策依据,为国家重大涉海工程提供防灾减灾服务,为渤海地区古气候与环境演变提供新的认识。The high-resolution profile survey of shallow strata,high-resolution multi-channel seismic survey of small track distance,side scan sonar,surface geological sampling,drilling and other survey mean resulted in revealing of the basic geological features,including seabed topography and landform,type and distribution of the seabed,stratigraphic structure,active faults,seismicity and stress in the trans-sea passage area of the Bohai Strait,summary of the geological hazards,the Quaternary stratigraphic framework and the evolution of palaeo-environment,and description of the main achievements of crustal stability evaluation in this area.The Bohai Strait is characterized by well-developed active faults,active neotectonic movement and unstable crust.The crust stability in the eastern part of the northern Yellow Sea Basin is relatively good,while that in the western part of the Bohai Basin and the southern part of the strait area is relatively poor.The latest survey results in the Bohai Strait can provide basic data and decision-making basis for the construction of cross-sea passage projects,serve for disaster prevention and mitigation of major national sea-related engineering,and promote the understanding of the evolution of paleoclimate and environment in the Bohai Sea area.

关 键 词：渤海海峡 跨海通道 地层结构 活动断裂 地壳稳定性 

分 类 号：P736[天文地球—海洋地质]