Shallow Deepwater Channels in Baiyun Deepwater Region of Northern Continental Slope, oft-com:office:smarttags" />South China Sea
详细信息
- 责任者：Liu Jun (Research Institute of Shenzhen Branch ; CNOOC ; Guangzhou 510240 ; China) ; Pang Xiong
- 刊名：Petroleum Geology & Experiment
- 出版年：2011
- 卷期：33(3)
- 关键词：深海沉积作用 ; deep-sea sedimentation ; 深海环境 ; deep-sea environment ; 南海 ; South China Sea
- 页码：p.255-259
- 图表：7 illus., 16 refs.
- 分类号：0200
- 出版序号：670
- issnNo：ISSN1001-6112
- isbnNo：CN32-1151/TE
摘要
Based on shallow 3D seismic data with high resolution, shallow deepwater channels in the Baiyun deepwater region are studied. Large amounts of deepwater channels generate in the slope and the slope base of Baiyun Sag. The channels are classified into 3 types: erosional, erosional/aggradational and aggradational. The geometries of deepwater channels change along with gradient. On the upper slope,single deep feeding channel develops. On the basin floor with unconfined environment, small channels spread laterally.In plane view, channel shapes may be straight or bended. The vertical changing characteristics of erosional/aggradational channels in the Baiyun Sag are concluded as follows: grain size decreases upwards. Mastering channels are found at the bottom and leveed channels are found at the top.
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