Acoustic characteristics of seafloor sediments in the abyssal areas of the South China Sea

doi:10.1016/j.oceaneng.2018.03.013

IOCAS-IR > 海洋地质与环境重点实验室

	Acoustic characteristics of seafloor sediments in the abyssal areas of the South China Sea
	Hou, Zhengyu1,2,3 ; Chen, Zhong 1; Wang, Jingqiang2 ; Zheng, Xufeng 1; Yan, Wen 1,4; Tian, Yuhang 1,4; Luo, Yun 1,4
	2018-05-15
发表期刊	OCEAN ENGINEERING
ISSN	0029-8018
卷号	156 页码:93-100
通讯作者	Hou, Zhengyu(zyhou@scsio.ac.cn)
摘要	Deep-sea sediment cores were obtained from abyssal areas (water depth > 4000 m) in the South China Sea (SCS) to derive acoustic characteristics by using a WSD-3 digital acoustic instrument at a frequency of 100 kHz. The compressional wave velocity (Vp) of the seafloor sediments in the central basin is differentiated into 3 provinces on the basis of the sediment properties (esp. mean grain size and velocity). Provinces 1.11 and H2 have a high compressional wave velocity and coarse particles, while the middle province L. has a low compressional wave velocity and fine particles. The results show that the distribution of Vp is related to the sediment physical properties, sediment sources and ocean current. Vertical variations in the Vp indicate that it increases with burial depth in the high-velocity province, but is complicated in the low-velocity province, reflecting that the more active or complicated sedimentary environment in province L may be affected by the topography. We proposed a laboratory sound velocity measurement method based on Hamilton sound velocity ratio method. In addition, the measurement values from this method are close to the in situ sound velocity determined by adjusting the temperature of the sediment samples.
关键词	Acoustic characteristics Abyssal areas Sound velocity ratio South China sea
DOI	10.1016/j.oceaneng.2018.03.013
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41706045] ; National Natural Science Foundation of China[41706062] ; Key Laboratory of ocean and Marginal Sea Geology[OMG17-04] ; Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences[MGE2017KG02] ; Guangdong Natural Science Foundation[2017A030313237] ; Shandong Provincial Natural Science Foundation, China[ZR2017BD031] ; National Natural Science Foundation of China[41706045] ; National Natural Science Foundation of China[41706062] ; Key Laboratory of ocean and Marginal Sea Geology[OMG17-04] ; Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences[MGE2017KG02] ; Guangdong Natural Science Foundation[2017A030313237] ; Shandong Provincial Natural Science Foundation, China[ZR2017BD031]
WOS研究方向	Engineering ; Oceanography
WOS类目	Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
WOS记录号	WOS:000433269100008
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/159240
专题	海洋地质与环境重点实验室
通讯作者	Hou, Zhengyu
作者单位	1.Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China 2.SOA, Inst Oceanog 1, Key Lab Seafloor Sedimentol & Environm Geol, Qingdao 266061, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Shandong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Hou, Zhengyu,Chen, Zhong,Wang, Jingqiang,et al. Acoustic characteristics of seafloor sediments in the abyssal areas of the South China Sea[J]. OCEAN ENGINEERING,2018,156:93-100.
APA	Hou, Zhengyu.,Chen, Zhong.,Wang, Jingqiang.,Zheng, Xufeng.,Yan, Wen.,...&Luo, Yun.(2018).Acoustic characteristics of seafloor sediments in the abyssal areas of the South China Sea.OCEAN ENGINEERING,156,93-100.
MLA	Hou, Zhengyu,et al."Acoustic characteristics of seafloor sediments in the abyssal areas of the South China Sea".OCEAN ENGINEERING 156(2018):93-100.

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