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	Geomorphology, sedimentary processes and development of the Zenisu deep-sea channel, northern Philippine Sea
	Wu, SG; Takahashi, N; Tokuyama, H; Wong, HK
刊名	GEO-MARINE LETTERS
	2005-09-01
卷号	25期号:4页码:230-240
关键词	Nankai Trough Ridge Subduction Fan Japan
ISSN号	0276-0460
DOI	10.1007/s00367-005-0210-9
文献子类	Article
英文摘要	The Zenisu deep-sea channel originates on the Izu-Ogasawara island arc, and disappears in the Shikoku Basin of the Philippine Sea. The geomorphology, sedimentary processes, and the development of the Zenisu deep-sea channel were investigated on the basis of swath bathymetry, side-scan sonar imagery, submersible observations, and seismic data. The deep-sea channel can be divided into three segments according to the downslope gradient and channel orientation. They are the Zenisu Canyon, the E-W fan channel, and the trough-axis channel. The sediment fill is characterized by turbidite and debrite deposition and blocky-hummocky avalanche deposits on the flanks of the Zenisu Ridge. In the Zenisu Canyon and the Zenisu deep-sea channel, sediment transport by turbidity currents generates sediment waves (dunes) observed during the Shinkai 6500 dive 371. The development of the Zenisu Canyon is controlled by a N-S shear fault, whereas the trough-axis channel is controlled by basin subsidence associated with the Zenisu Ridge. The E-W fan channel was probably affected by the E-W fault and the basement morphology.; The Zenisu deep-sea channel originates on the Izu-Ogasawara island arc, and disappears in the Shikoku Basin of the Philippine Sea. The geomorphology, sedimentary processes, and the development of the Zenisu deep-sea channel were investigated on the basis of swath bathymetry, side-scan sonar imagery, submersible observations, and seismic data. The deep-sea channel can be divided into three segments according to the downslope gradient and channel orientation. They are the Zenisu Canyon, the E-W fan channel, and the trough-axis channel. The sediment fill is characterized by turbidite and debrite deposition and blocky-hummocky avalanche deposits on the flanks of the Zenisu Ridge. In the Zenisu Canyon and the Zenisu deep-sea channel, sediment transport by turbidity currents generates sediment waves (dunes) observed during the Shinkai 6500 dive 371. The development of the Zenisu Canyon is controlled by a N-S shear fault, whereas the trough-axis channel is controlled by basin subsidence associated with the Zenisu Ridge. The E-W fan channel was probably affected by the E-W fault and the basement morphology.
学科主题	Geosciences, Multidisciplinary ; Oceanography
语种	英语
WOS记录号	WOS:000231326100004
公开日期	2010-12-22
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/3751]
专题	海洋研究所_海洋地质与环境重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Japan Marine Sci & Technol Ctr, Tokyo 1050003, Japan 3.Univ Tokyo, Ocean Res Inst, Tokyo 1648639, Japan 4.Univ Hamburg, Inst Biogeochem & Marine Chem, D-20146 Hamburg, Germany
推荐引用方式 GB/T 7714	Wu, SG,Takahashi, N,Tokuyama, H,et al. Geomorphology, sedimentary processes and development of the Zenisu deep-sea channel, northern Philippine Sea[J]. GEO-MARINE LETTERS,2005,25(4):230-240.
APA	Wu, SG,Takahashi, N,Tokuyama, H,&Wong, HK.(2005).Geomorphology, sedimentary processes and development of the Zenisu deep-sea channel, northern Philippine Sea.GEO-MARINE LETTERS,25(4),230-240.
MLA	Wu, SG,et al."Geomorphology, sedimentary processes and development of the Zenisu deep-sea channel, northern Philippine Sea".GEO-MARINE LETTERS 25.4(2005):230-240.

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