| Seabed domes with circular depressions in the North Yellow Sea | |
| Wang Bing1,2,4; Zhang Xin1,2,3,4; Luan Zhendong1,2; Chen Chang'an1; Yan Jun1,2 | |
| 2018-11-01 | |
| 发表期刊 | JOURNAL OF OCEANOLOGY AND LIMNOLOGY
 |
| ISSN | 2096-5508 |
| 卷号 | 36期号:6页码:2154-2165 |
| 通讯作者 | Zhang Xin([email protected]) |
| 摘要 | Numerous isolated shallow seabed domes with depressions were discovered in the North Yellow Sea in a high-resolution multibeam echosounder survey. Twelve domes were located within a 11 km by 17 km survey area. The domes in this area were between 0.1 m and 1.0 m high with diameters ranging from 250 to 1 700 m. They were surrounded by corresponding depressions and displayed characteristic shapes ranging from circular to elliptical. The acoustic anomalies displayed on the high resolution sub-bottom profile images demonstrated that shallow gas accumulated just beneath these domes, suggesting that the migration and accumulation of the shallow gas caused the formation of these features. Accumulation atop the seabed domes and erosion within the depressions, as indicated by the lithological features of the sediment cores, suggested that seabed bottom currents also played a role in the formation and evolution of these features. In addition, the simultaneous decrease in the chlorite and sulfate content in core d pore water samples continued the presence of submarine fresh/brackish groundwater, which is of interest for hydrological budgets and may be a significant component of the regional hydrologic balance. Our findings suggested that shallow gas accumulation and migration are likely coupled to localized groundwater discharge at this domed site. |
| 其他摘要 | Numerous isolated shallow seabed domes with depressions were discovered in the north yellow sea in a high-resolution multibeam echosounder survey. twelve domes were located within a 11 km by 17 km survey area. the domes in this area were between 0.1 m and 1.0 m high with diameters ranging from 250 to 1 700 m. they were surrounded by corresponding depressions and displayed characteristic shapes ranging from circular to elliptical. the acoustic anomalies displayed on the high resolution sub-bottom profile images demonstrated that shallow gas accumulated just beneath these domes, suggesting that the migration and accumulation of the shallow gas caused the formation of these features. accumulation atop the seabed domes and erosion within the depressions, as indicated by the lithological features of the sediment cores, suggested that seabed bottom currents also played a role in the formation and evolution of these features. in addition, the simultaneous decrease in the chlorite and sulfate content in core d pore water samples continued the presence of submarine fresh/brackish groundwater, which is of interest for hydrological budgets and may be a significant component of the regional hydrologic balance. our findings suggested that shallow gas accumulation and migration are likely coupled to localized groundwater discharge at this domed site. |
| 关键词 | seabed dome shallow gas North Yellow Sea submarine fresh/brackish groundwater |
| DOI | 10.1007/s00343-019-7173-6 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Strategic Priority Research Program, CAS[XDA19060402]###639; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1606401]###118; International Partnership for Innovative Team Program from the Chinese Academy of Sciences[20140491526]###504; Taishan Scholar Project Funding[tspd20161007]###534; Strategic Priority Research Program, CAS[XDA19060402]; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1606401]; International Partnership for Innovative Team Program from the Chinese Academy of Sciences[20140491526]; Taishan Scholar Project Funding[tspd20161007] |
| WOS研究方向 | Marine & Freshwater Biology ; Oceanography |
| WOS类目 | Limnology ; Oceanography |
| WOS记录号 | WOS:000454629000020 |
| CSCD记录号 | CSCD:6397634 |
| 出版者 | SCIENCE PRESS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/155917 |
| 专题 | 海洋地质与环境重点实验室 深海极端环境与生命过程研究中心 |
| 通讯作者 | Zhang Xin |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao 266071, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所; 深海极端环境与生命过程研究中心 |
| 通讯作者单位 | 中国科学院海洋研究所; 深海极端环境与生命过程研究中心 |
| 推荐引用方式 GB/T 7714 | Wang Bing,Zhang Xin,Luan Zhendong,et al. Seabed domes with circular depressions in the North Yellow Sea[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2018,36(6):2154-2165. |
| APA | Wang Bing,Zhang Xin,Luan Zhendong,Chen Chang'an,&Yan Jun.(2018).Seabed domes with circular depressions in the North Yellow Sea.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,36(6),2154-2165. |
| MLA | Wang Bing,et al."Seabed domes with circular depressions in the North Yellow Sea".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 36.6(2018):2154-2165. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Seabed domes with ci（5304KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论