| Deepwater Canyons Reworked by Bottom Currents: Sedimentary Evolution and Genetic Model | |
| Lu, Caili2,3; Yao, Yongjian1; Gong, Yuehua1; Wu, Shiguo2; Li, Xuejie1; Yao, YJ (reprint author), Guangzhou Marine Geol Survey, Guangzhou 510075, Guangdong, Peoples R China. | |
| 2012-10-01 | |
| 发表期刊 | JOURNAL OF EARTH SCIENCE
 |
| ISSN | 1674-487X |
| 卷号 | 23期号:5页码:731-743 |
| 文章类型 | Article |
| 摘要 | Based on multi-beam bathymetric data and 2D high-resolution, multi-channel seismic profiles, combing ODP1148 drilling data, the morphology, internal sedimentary architecture, and evolution pattern of 17 deepwater canyons from the Middle Miocene to present are documented in the northern Baiyun sag (BS), Pearl River Mouth basin (PRMB), and northern South China Sea (SCS). There exist six seismic architectural elements in these canyons, including basal erosive surfaces (BES), thalweg deposits (TD), lateral migration packages (LMP), mass transport deposits (MTD), canyon margin deposits (CMD), and drape deposits (DD). According to the stratigraphical ages and geometrical features of these canyons, their formation and evolution processes are divided into three stages: (1) Middle Miocene scouring-filling, (2) Late Miocene lateral migration, and (3) Pliocene-Quaternary vertical overlay. An auto-cyclic progressive in the scouring-filling and vertical overlay; process of eroding and filling by turbidity currents results bottom currents are responsible for the remarkable asymmetry between the two flanks of canyons; and faults are inherent dynamic forces triggering these can yons. It is inferred that these canyons are caused by the double effects of turbidity and bottom currents under the control of faults as inherent dynamic forces. |
| 关键词 | Deepwater Canyon-channel Bottom Current Turbidity Current Lateral Migration South China Sea |
| 学科领域 | Geosciences, Multidisciplinary |
| DOI | 10.1007/s12583-012-0280-3 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000309442600008 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/12497 |
| 专题 | 海洋地质与环境重点实验室 |
| 通讯作者 | Yao, YJ (reprint author), Guangzhou Marine Geol Survey, Guangzhou 510075, Guangdong, Peoples R China. |
| 作者单位 | 1.Guangzhou Marine Geol Survey, Guangzhou 510075, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Lu, Caili,Yao, Yongjian,Gong, Yuehua,et al. Deepwater Canyons Reworked by Bottom Currents: Sedimentary Evolution and Genetic Model[J]. JOURNAL OF EARTH SCIENCE,2012,23(5):731-743. |
| APA | Lu, Caili,Yao, Yongjian,Gong, Yuehua,Wu, Shiguo,Li, Xuejie,&Yao, YJ .(2012).Deepwater Canyons Reworked by Bottom Currents: Sedimentary Evolution and Genetic Model.JOURNAL OF EARTH SCIENCE,23(5),731-743. |
| MLA | Lu, Caili,et al."Deepwater Canyons Reworked by Bottom Currents: Sedimentary Evolution and Genetic Model".JOURNAL OF EARTH SCIENCE 23.5(2012):731-743. |
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