| 福建省近海海底麻坑的地貌特征及其与海洋工程的联动效应 |
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| 引用本文： | 曹超,蔡锋,郑勇玲,卢惠泉,吴承强,鲍晶晶,刘春庚,李永保.福建省近海海底麻坑的地貌特征及其与海洋工程的联动效应[J].海洋开发与管理,2019,36(10):52-54. |
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| 作者姓名： | 曹超 蔡锋 郑勇玲 卢惠泉 吴承强 鲍晶晶 刘春庚 李永保 |
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| 作者单位： | 自然资源部第三海洋研究所 厦门 361005;自然资源部第三海洋研究所 厦门 361005;中国海洋大学海洋地球科学学院 青岛 266100 |
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| 基金项目： | 福建省自然科学基金项目（2016J01190）；中央级公益性科研院所基本科研业务费专项项目（海三科2016037）；国家自然科学基金项目（41406059）；海洋地质国家重点实验室开放基金项目（MGK1604）；国家海洋公益性科研专项项目（201505012-5） |
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| 摘 要： | 为科学开发利用海洋资源、防范海底地质灾害和保护生态环境,文章梳理福建省近海海底麻坑的类型和成因,并分析海洋工程与灾害性地貌的联动效应。研究结果表明:受板块挤压和海平面波动等的影响,福建省近海海底地形和沉积环境复杂多变,流体活动形成的海底麻坑主要包括单元麻坑、圆形麻坑、拉长形麻坑、链状麻坑和复合麻坑5种类型,在北部泥质区、南部砂质区、河口区和海湾区有不同分布,其成因主要包括海相生物气、生物气和海陆生物混合热解气;应高度重视海洋工程与海底麻坑等灾害性地貌的联动效应,避免发生海底地质灾害和破坏海洋生态环境。
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| 关 键 词： | 海底地貌单元 海底地质灾害 灾害性地貌 沉积环境 海洋工程 |
Distribution Geomorphology Characteristics of Pockmark and Linkage Effect of Ocean Engineering in Fujian Offshore Seabed |
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| CAO Chao,CAI Feng,ZHENG Yongling,LU Huiquan,WU Chengqiang,BAO Jingjing,LIU Chungeng and LI Yongbao.Distribution Geomorphology Characteristics of Pockmark and Linkage Effect of Ocean Engineering in Fujian Offshore Seabed[J].Ocean Development and Management,2019,36(10):52-54. |
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| Authors: | CAO Chao CAI Feng ZHENG Yongling LU Huiquan WU Chengqiang BAO Jingjing LIU Chungeng and LI Yongbao |
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| Abstract: | In order to develop and utilize marine resources,prevent geological disasters and protect ecological environment,this paper sorted out the types and causes of submarine pockmarks in offshore Fujian province,and analyzed the linkage effect between marine engineering and disastrous geomorphology.The results show that the tectonic plates and the influence of sea level fluctuations,offshore submarine topography and sedimentary environment of Fujian province is complicated,fluid flow unit forms the bottom of the pockmark mainly has 5 types including hemp pockmark,circular pockmark,elongated hemp pockmark,chain pockmark and compound hemp pockmark,in the northern argillaceous area,southern sandy area,estuary and bay area has different distribution,the causes mainly include marine biogas,biogas and marine biological mixed pyrolysis gas.Great attention should be paid to the linkage effect between marine engineering and disastrous landforms such as submarine pockmark,so as to avoid the occurrence of submarine geological disasters and damage to marine ecological environment. |
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