Modern sedimentary environments and dynamic depositional systems in the southern Yellow Sea

doi:10.1360/01we0101

IOCAS-IR > 海洋地质与环境重点实验室

	Modern sedimentary environments and dynamic depositional systems in the southern Yellow Sea
	Shi, XF ; Shen, SX ; Yi, HI ; Chen, ZH ; Meng, Y
	2003-06-01
发表期刊	CHINESE SCIENCE BULLETIN
ISSN	1001-6538
卷号	48 页码:1-7
文章类型	Article
摘要	Based on analyses of more than 600 surface sediment samples together with large amounts of previous sedimentologic and hydrologic data, the characteristics of modern sedimentary environments and dynamic depositional systems in the southern Yellow Sea (SYS) are expounded, and the controversial formation mechanism of muddy sediments is also discussed. The southern Yellow Sea shelf can be divided into low-energy sedimentary environment and high-energy sedimentary environment; the low-energy sedimentary environment can be further divided into cyclonic and anticyclonic ones, and the high-energy environment is subdivided into high-energy depositional and eroded environments. In the shelf low-energy environments, there developed muddy depositional system. In the central part of the southern Yellow Sea, there deposited the cold eddy sediments under the actions of a meso-scale cyclonic eddy (cold eddy), and in the southeast of the southern Yellow Sea, an anticyclonic eddy muddy depositional system (warm eddy sediment) was formed. These two types of sediments showed evident differences in grain size, sedimentation rate, sediment thickness and mineralogical characteristics. The high-energy environments were covered with sandy sediments on seabed; they appeared mainly in the west, south and northeast of the southern Yellow Sea. In the high-energy eroded environment, large amounts of sandstone gravels were distributed on seabed. In the high-energy depositional environment, the originally deposited fine materials (including clay and fine silt) were gradually re-suspended and then transported to a low-energy area to deposit again. In this paper, the sedimentation model of cyclonic and anticyclonic types of muddy sediments is established, and a systematic interpretation for the formation cause of muddy depositional systems in the southern Yellow Sea is given.; Based on analyses of more than 600 surface sediment samples together with large amounts of previous sedimentologic and hydrologic data, the characteristics of modern sedimentary environments and dynamic depositional systems in the southern Yellow Sea (SYS) are expounded, and the controversial formation mechanism of muddy sediments is also discussed. The southern Yellow Sea shelf can be divided into low-energy sedimentary environment and high-energy sedimentary environment; the low-energy sedimentary environment can be further divided into cyclonic and anticyclonic ones, and the high-energy environment is subdivided into high-energy depositional and eroded environments. In the shelf low-energy environments, there developed muddy depositional system. In the central part of the southern Yellow Sea, there deposited the cold eddy sediments under the actions of a meso-scale cyclonic eddy (cold eddy), and in the southeast of the southern Yellow Sea, an anticyclonic eddy muddy depositional system (warm eddy sediment) was formed. These two types of sediments showed evident differences in grain size, sedimentation rate, sediment thickness and mineralogical characteristics. The high-energy environments were covered with sandy sediments on seabed; they appeared mainly in the west, south and northeast of the southern Yellow Sea. In the high-energy eroded environment, large amounts of sandstone gravels were distributed on seabed. In the high-energy depositional environment, the originally deposited fine materials (including clay and fine silt) were gradually re-suspended and then transported to a low-energy area to deposit again. In this paper, the sedimentation model of cyclonic and anticyclonic types of muddy sediments is established, and a systematic interpretation for the formation cause of muddy depositional systems in the southern Yellow Sea is given.
关键词	Southern Yellow Sea Dynamic Environment Depositional System
学科领域	Multidisciplinary Sciences
DOI	10.1360/01we0101
收录类别	SCI
语种	英语
WOS记录号	WOS:000183335900001
引用统计	被引频次：36[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/337002/3786
专题	海洋地质与环境重点实验室
作者单位	1.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China 2.Acad Sinica, Inst Oceanol, Qingdao 266071, Peoples R China 3.Korea Ocean Res & Dev Inst, Ansan 425600, South Korea
推荐引用方式 GB/T 7714	Shi, XF,Shen, SX,Yi, HI,et al. Modern sedimentary environments and dynamic depositional systems in the southern Yellow Sea[J]. CHINESE SCIENCE BULLETIN,2003,48:1-7.
APA	Shi, XF,Shen, SX,Yi, HI,Chen, ZH,&Meng, Y.(2003).Modern sedimentary environments and dynamic depositional systems in the southern Yellow Sea.CHINESE SCIENCE BULLETIN,48,1-7.
MLA	Shi, XF,et al."Modern sedimentary environments and dynamic depositional systems in the southern Yellow Sea".CHINESE SCIENCE BULLETIN 48(2003):1-7.

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