| 南海中西部地貌单元划分及其特征和成因分析 |
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| 关键词:South China Sea seafloor geomorphology genesis multibeam echo sounding |
| 基金项目:中国地质调查局项目(编号: 1212011220116; DD20160138; 121201002000150002; GZH201400209);国家自然科学基金项目“中建盆地泥火山和麻坑群的形成机理及差异性地貌的成因”(编号: 41676051) |
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| 摘要点击次数: 1964 |
| 全文下载次数: 1604 |
| 摘要: |
| Geomorphologic Unit Partition, Characteristics and Genesis of Central and Western South China Sea |
| The middle and western part of the South China Sea is the transitional zone between the northern and southern parts of the South China Sea. It is located between the Indo-China block and the seafloor spreading center of the South China Sea, and its special geomorphology has important significance for the study of the geomorphology and geological features of the South China Sea. Based on the data of water depth, sediment survey and seismic profile obtained by the Guangzhou Marine Geological Survey Bureau as well as the results of previous studies, the authors extracted the information of geomorphology and compiled the geomorphologic map of the central and western parts of the South China Sea. The study area was divided into three secondary landform units, i.e., continental shelf, continental slope and deep sea basin, and many subordinate landform units such as submarine bank, submarine beach, marine ridge, canyon, pockmark, terrace, basin, marine platform, marine mountain, marine fan, and marine plain. This paper describes the characteristics of the landform units in this area, and puts forward geological factors such as faults, volcanoes, tectonic uplift and turbidity, which are the main factors of geomorphologic formation in this area. |
| ZHU Song,YAO Yong-jian,LUO Wei-dong,XU Zi-ying,JU Dong,LIU Sheng-xuan.2017.Geomorphologic Unit Partition, Characteristics and Genesis of Central and Western South China Sea[J].Acta Geoscientica Sinica,38(6):897-909. |
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