Sedimentary processes in Zenisu deep-sea channel revealed by side-scan imagery

Wu Shiguo; Guo Junhua; Tokuyama Hidekazu

doi:10.1007/BF02842679

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Sedimentary processes in Zenisu deep-sea channel revealed by side-scan imagery

OriginalPaper | Updated：2023-05-16

- Sedimentary processes in Zenisu deep-sea channel revealed by side-scan imagery
- Sedimentary processes in Zenisu deep-sea channel revealed by side-scan imagery
- 海洋湖沼学报（英文） 2005年23卷第4期页码：368-375
- Affiliations：
  
  1. Institute of Oceanology Chinese Academy of Sciences
  2. Graduate School of the Chinese Academy of Sciences
  3. Ocean Research Institute University of Tokyo
- Author bio：
- Funds：
  
  Financially supported by the NSFC (Grant No. 40276022), Knowledge Innovation Program of Chinese Academy of Sciences (KZCX3-SW-219) and JSPS international cooperation program, and the Ministry of Science and Technology Project (G200046704).
- DOI：10.1007/BF02842679
  中图分类号：
- 纸质出版：2005
- Accepted：
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Sedimentary processes in Zenisu deep-sea channel revealed by side-scan imagery[J]. 海洋湖沼学报（英文）, 2005,23(4):368-375.

Shiguo, W., Junhua, G. & Hidekazu, T. Sedimentary processes in Zenisu deep-sea channel revealed by side-scan imagery., Chin. J. Ocean. Limnol. 23, 368–375 (2005). https://doi.org/10.1007/BF02842679
Sedimentary processes in Zenisu deep-sea channel revealed by side-scan imagery[J]. 海洋湖沼学报（英文）, 2005,23(4):368-375. DOI： 10.1007/BF02842679.

Shiguo, W., Junhua, G. & Hidekazu, T. Sedimentary processes in Zenisu deep-sea channel revealed by side-scan imagery., Chin. J. Ocean. Limnol. 23, 368–375 (2005). https://doi.org/10.1007/BF02842679 DOI：

摘要

Abstract

Side-scan sonar data collected by Cruises 99-09 Leg 2 and 00-06 Leg 1 of R/V Yokosuka were used to reveal the sedimentary processes in Zenisu deep-sea channel. The middle and lower segments of the channel are rich in turbidite and other debrite deposits. By high-resolution imaging

three sedimentary processes were distinguished with distinct acoustic features. 1. Slumps and slides occur with contrasting backscatter

rough surface textures

blockings

and acoustic shadows at head walls. They are very extensive and often in lobate form downslope. 2. Debris flow has uniform

general medium backscatter

sometimes showing marbling/lineation in lobate form. 3. Turbidity current is characterized by low backscatter confined to the channel as acoustic signal is attenuated. Regional tectonics must be the dominating factor that controls deposition pattern in this area.

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references

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