Different origins of seafloor undulations in a submarine canyon system, northern South China Sea, based on their seismic character and relative location
文献类型：期刊论文
| 作者 | Alves, Tiago M.; Rebesco, Michele4; Zhan, Wenhuan2; Sun, Jie; Mitchell, Neil C.; Wu, Shiguo1; Li, Wei2; Li, Jian2 |
| 刊名 | MARINE GEOLOGY
 |
| 出版日期 | 2019 |
| 卷号 | 413页码:99 |
| 关键词 | South China Sea Submarine canyons Seafloor undulations Bathymetry Internal seismic character |
| ISSN号 | 0025-3227 |
| DOI | 10.1016/j.margeo.2019.04.007 |
| 英文摘要 | High-resolution 2D and 3D seismic data are used to investigate the morphology, internal architecture and origin of widespread seafloor undulations in the eastern area of a submarine canyon system, northern South China Sea. The seafloor undulations reveal similar seafloor morphologies, and three different types (Types A, B and C) can be classified based on their relative locations and internal seismic characters. Types A and B are observed in the canyon areas, whereas Type C occurs in the canyon heads. Seismic reflections within Types A and C are continuous and have an upslope migrating trend, while Type B seafloor undulations are separated by listric faults. Our analysis reveals the origins of these three different types of seafloor undulations. Type A seafloor undulations are sediment waves formed by turbidity currents flowing through the submarine canyons. Gravity-driven submarine creep resulted in the formation of Type B seafloor undulations. Type C undulations are sediment waves generated by internal waves interacting with the continental slope. Our results provide information about the origin of widespread seafloor undulations in other submarine canyon systems. It is also of great significance to future risk assessments, as the study area now is one of the most active regions for hydrocarbon exploration in SE Asia. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/17948]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 作者单位 | 1.Mitchell, Neil C.] Univ Manchester, Sch Earth & Environm Sci, Manchester M13 9PL, Lancs, England 2.Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Alves, Tiago M.] Cardiff Univ, Sch Earth & Ocean Sci, 3D Seism Lab, Main Bldg,Pk Pl, Cardiff CF10 3AT, S Glam, Wales 5.Inst Nazl Oceanog & Geofis Sperimentale OGS, Borgo Grotta Gigante 42-C, I-34010 Trieste, Italy 6.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Alves, Tiago M.,Rebesco, Michele,Zhan, Wenhuan,et al. Different origins of seafloor undulations in a submarine canyon system, northern South China Sea, based on their seismic character and relative location[J]. MARINE GEOLOGY,2019,413:99, 111. |
| APA | Alves, Tiago M..,Rebesco, Michele.,Zhan, Wenhuan.,Sun, Jie.,Mitchell, Neil C..,...&Li, Jian.(2019).Different origins of seafloor undulations in a submarine canyon system, northern South China Sea, based on their seismic character and relative location.MARINE GEOLOGY,413,99. |
| MLA | Alves, Tiago M.,et al."Different origins of seafloor undulations in a submarine canyon system, northern South China Sea, based on their seismic character and relative location".MARINE GEOLOGY 413(2019):99. |
入库方式： OAI收割
来源：南海海洋研究所
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