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学科主题: Engineering, Ocean ; Oceanography
题名: Seabed sediment classification in the northern South China Sea using inversion method
作者: [Zheng, Hong-bo ; Yan, Pin ; Wang, Yan-lin] S China Sea Inst Oceanol, CAS Key Lab Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China ; [Zheng, Hong-bo] Chinese Acad Sci, State Key Lab Acoust, Beijing, Peoples R China ; [Chen, Jing] SOA, S China Sea Marine Engn Surveying Ctr, Guangzhou, Guangdong, Peoples R China
通讯作者: hongbozheng@126.com
关键词: Continental slope of the northern South China Sea ; Sub-bottom profile data ; Seabed sediment ; Sediment classification ; Inversion method
刊名: APPLIED OCEAN RESEARCH
发表日期: 2013
卷: 39, 页:131-136
部门归属: 海洋地质
资助者: This project is supported by State Key Laboratory of Acoustics, Chinese Academy of Sciences (no. SKLOA201106) and National Natural Science Young Foundation of China (no. 41106056). The authors also sincerely appreciate the two anonymous reviewers for invaluable critical comments.
摘要: Sub-bottom profile data can be used not only for the interpretation of the seabed strata structure and formation, but also for seabed sediments classification using inversion method. In the present paper, sub-bottom profile data from a survey line located on the continental slope of the northern South China Sea were processed. The data collected were used to calculate seabed reflection coefficient and attenuation rolloff, while sediment acoustic characteristics parameters, including porosity and permeability, were defined based on the Blot model that calculates wave propagation in sediment fluid mixtures. Finally, the mean grain sizes and corresponding sediment classification were quantitatively estimated. By comparing the inversion result with sediment description of gravity piston cores which were acquired near the survey line, we found that the results from inversion method accord with the particle size analysis of sediment cores. However, the inversion method is only suitable for the soft seabed sediments such as mud or sand. The petrous sediment in the survey is classified by Gardner formula and we concluded the petrous seabed sediments are carbonate crusts which are generated from leaky gas hydrate. (C) 2012 Elsevier Ltd. All rights reserved.
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000315077300014
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/11142
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Recommended Citation:
[Zheng, Hong-bo; Yan, Pin; Wang, Yan-lin] S China Sea Inst Oceanol, CAS Key Lab Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China; [Zheng, Hong-bo] Chinese Acad Sci, State Key Lab Acoust, Beijing, Peoples R China; [Chen, Jing] SOA, S China Sea Marine Engn Surveying Ctr, Guangzhou, Guangdong, Peoples R China.Seabed sediment classification in the northern South China Sea using inversion method,APPLIED OCEAN RESEARCH,2013,39():131-136
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