Sedimentary processes and development of the Zenisu deep-sea channel, Philippine Sea

doi:10.1360/01we0024

IOCAS-IR > 海洋地质与环境重点实验室

	Sedimentary processes and development of the Zenisu deep-sea channel, Philippine Sea
	Wu, SG ; Izumi, S
	2003-06-01
发表期刊	CHINESE SCIENCE BULLETIN
ISSN	1001-6538
卷号	48 页码:92-97
文章类型	Article
摘要	Zenisu deep-sea channel originated from a volcanic arc region, Izu-Ogasawara Island Arc, and vanished in the Shikoku Basin of the Philippine Sea. According to the swath bathymetry, the deep-sea channel can be divided into three,segments. They are Zenisu canyon, E-W fan channel and trough-axis channel. A lot of volcanic detritus were deposited in the Zenisu Trough via the deep-sea channel because it originated from volcanic arc settings. On the basis of the swath bathymetry, submersible and seismic reflection data, the deposits are characterized by turbidite and debrite deposits as those in the other major deep-sea channels. Erosion or few sediments were observed in the Zenisu canyon, whereas a lot of turbidites and debrites occurred in the E-W channel and trough axis channel. Cold seep communities, active fault and fluid flow were discovered along the lower slope of the Zenisu Ridge. Vertical sedimentary sequences in the Zenisu Trough consist of the four post-rift sequence units of the Shikoku Basin, among which Units A and B are two turbidite units. The development of Zenisu canyon is controlled by the N-S shear fault, the E-W fan channel is related to the E-W shear fault, and the trough-axis channel is related to the subsidence of central basin.; Zenisu deep-sea channel originated from a volcanic arc region, Izu-Ogasawara Island Arc, and vanished in the Shikoku Basin of the Philippine Sea. According to the swath bathymetry, the deep-sea channel can be divided into three,segments. They are Zenisu canyon, E-W fan channel and trough-axis channel. A lot of volcanic detritus were deposited in the Zenisu Trough via the deep-sea channel because it originated from volcanic arc settings. On the basis of the swath bathymetry, submersible and seismic reflection data, the deposits are characterized by turbidite and debrite deposits as those in the other major deep-sea channels. Erosion or few sediments were observed in the Zenisu canyon, whereas a lot of turbidites and debrites occurred in the E-W channel and trough axis channel. Cold seep communities, active fault and fluid flow were discovered along the lower slope of the Zenisu Ridge. Vertical sedimentary sequences in the Zenisu Trough consist of the four post-rift sequence units of the Shikoku Basin, among which Units A and B are two turbidite units. The development of Zenisu canyon is controlled by the N-S shear fault, the E-W fan channel is related to the E-W shear fault, and the trough-axis channel is related to the subsidence of central basin.
关键词	Deep-sea Channel Sedimentation Manned Submersible Seabeam Bathymetry Philippine Sea
学科领域	Multidisciplinary Sciences
DOI	10.1360/01we0024
收录类别	SCI
语种	英语
WOS记录号	WOS:000183335900014
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/3794
专题	海洋地质与环境重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanog, Qingdao, Peoples R China 2.Japan Marine Sci & Technol Ctr, Yokosuka, Kanagawa 2370061, Japan 3.State Ocean Adm, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Wu, SG,Izumi, S. Sedimentary processes and development of the Zenisu deep-sea channel, Philippine Sea[J]. CHINESE SCIENCE BULLETIN,2003,48:92-97.
APA	Wu, SG,&Izumi, S.(2003).Sedimentary processes and development of the Zenisu deep-sea channel, Philippine Sea.CHINESE SCIENCE BULLETIN,48,92-97.
MLA	Wu, SG,et al."Sedimentary processes and development of the Zenisu deep-sea channel, Philippine Sea".CHINESE SCIENCE BULLETIN 48(2003):92-97.

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