Distribution and influencing factors of acoustic characteristics of seafloor sediment in the Sunda Shelf

Zhengyu HOU; Danling TANG; Jianguo LIU; Zhenglin LI; Peng XIAO

doi:10.1007/s00343-024-3120-2

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Distribution and influencing factors of acoustic characteristics of seafloor sediment in the Sunda Shelf

Geology | Updated：2024-11-19

- Distribution and influencing factors of acoustic characteristics of seafloor sediment in the Sunda Shelf
- Distribution and influencing factors of acoustic characteristics of seafloor sediment in the Sunda Shelf
- 海洋湖沼学报(英文) 2024年42卷第5期页码：1486-1492
- Affiliations：
  
  1.School of Ocean Engineering and Technology, Sun Yat-sen University & Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai519000, China
  2.Key Laboratory of Comprehensive Observation of Polar Environment (Sun Yat-sen University), Ministry of Education, Zhuhai519082, China
  3.Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) & South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou511458, China
- Author bio：
  
  zyhou2022@163.com
  lingzistdl@126.com
- Funds：
  
  the National Key R&D Program of China(2021YFF0501202);the National Natural Science Foundation of China(12374428;42176191;U22A2012;12304507);the Guangdong Special Support Key Team Program(2019BT02H594;GML2021GD0810);the Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)(SML2023SP232);the Fundamental Research Funds for the Central Universities, Sun Yat-sen University(24lgqb006)
- DOI：10.1007/s00343-024-3120-2
  中图分类号：
- 收稿：2023-06-24，
  
  网络首发：2024-02-03，
  
  纸质出版：2024-09-01
- Accepted：
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Distribution and influencing factors of acoustic characteristics of seafloor sediment in the Sunda Shelf[J]. 海洋湖沼学报(英文), 2024,42(5):1486-1492.

HOU Zhengyu,TANG Danling,LIU Jianguo,et al.Distribution and influencing factors of acoustic characteristics of seafloor sediment in the Sunda Shelf[J].Journal of Oceanology and Limnology,2024,42(05):1486-1492.
Distribution and influencing factors of acoustic characteristics of seafloor sediment in the Sunda Shelf[J]. 海洋湖沼学报(英文), 2024,42(5):1486-1492. DOI： 10.1007/s00343-024-3120-2.

HOU Zhengyu,TANG Danling,LIU Jianguo,et al.Distribution and influencing factors of acoustic characteristics of seafloor sediment in the Sunda Shelf[J].Journal of Oceanology and Limnology,2024,42(05):1486-1492. DOI： 10.1007/s00343-024-3120-2.

摘要

Abstract

To understand the acoustic and physical properties of piston core samples collected from the Sunda continental shelf and analyze their distribution patterns

the samples were analyzed in laboratory

from which three provinces were divided in sound speed

sound speed ratio

porosity

wet bulk density

and maximum shear strength. Province Ⅰ had lower sound speed and sound speed ratio (

1.04)

high porosity

and low wet bulk density. Province Ⅱ had higher sound speed and sound speed ratio (

1.04)

low porosity

and high wet bulk density. Province Ⅲ had the lowest sound speed and sound speed ratio (0.99)

highest porosity (81%)

and lowest wet bulk density (1.34 g/cm

). The distribution pattern indicates that sediment movement

sediment source

topography

and hydrodynamic conditions influenced the distribution of acoustic and physical properties. Furthermore

we investigated the relationship of the maximum shear strength to the porosity and wet bulk density

and found that the maximum shear strength was proportional to both the porosity and wet bulk density. This finding has significant implications for ocean engineering applications.

关键词

Keywords

references

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