摘要
为研究海南岛南部浅海海洋地质灾害和环境地质问题,在研究区域进行了单道地震测量和侧扫声呐测量工作,单道地震剖面显示,在研究区域分布有两条海底埋藏古河道,根据剖面位置,大致确定了研究区域海底埋藏古河道的分布和走向;根据侧扫声呐声图图像,发现在研究区域20m以深海域广泛发育沙脊、沙波地貌。研究结果表明,在研究区域存在潜在的海洋地质灾害因素,研究结果不仅对海南岛海岸带、陆架开发中的环境地质和地质灾害问题的调查具有实际应用价值,而且对于研究海南岛陆架地质环境演变也具有十分重要的意义。
Single-channel seismic survey and side scan sonar survey were conducted to study ma- rine geological disasters in the southern shallow sea of Hainan island. Single-channel seismic profile showed that there are 2 ancient river channels buried under the sea floor in the study area. According to the profile location, the distribution and trend of the buried ancient river channels were briefly determined.Based on the side-scan sonar image, it was found that sand ridge and sand slope developed widely in the sea area of 20 m＇s depth in the study area.Research result showed that there are potential factors of marine geological disasters existing in the study area.Not only does the research result have a practical application value to the investigation of the environmental geology and geological disasters in the development of coast zone and continental shelf of Hainan Island,it is also of great significance for the geological and environmental evolution of the continental shelf in Hainan Island.
作者
罗昆
陈卫
韩孝辉
LUO Kun,CHEN Wei, HAN Xiaohui(Marine Geological Survey Institute of Hainan Province, Haikou 570206, Chin)
出处
《海洋开发与管理》
2018年第3期51-55,共5页
Ocean Development and Management
基金
海南省国土环境资源厅项目(HZ2015-235)
关键词
单道地震
古河道
侧扫声呐
海洋地质灾害
地质环境
Single-channel seismic, Ancient river channel, Side scan sonar, Marine geological disaster, Geological environment
