Deep structural research of the South China Sea: Progresses and directions

Qin, Xuwen; Zhao, Bin; Li, Fuyuan; Zhang, Baojin; Wang, Hou-jin; Zhang, Ru-wei; Jia-xiong, HE; Chen, Xi

doi:10.31035/cg2018125

Cited by 14 publications

(21 citation statements)

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“…This discrepancy could be partially due to differences between sampling areas. The East China Sea is primarily shallow, and approximately three-fourths of the sea is less than 200 m in depth ( 33 ). In a study by Wu et al ( 6 ), the bottom samples were collected from sampling sites possessing water depths of less than 104 m, which were located close to the sediments (<7 m).…”

Section: Discussionmentioning

confidence: 99%

Protistan-Bacterial Microbiota Exhibit Stronger Species Sorting and Greater Network Connectivity Offshore than Nearshore across a Coast-to-Basin Continuum

et al. 2021

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Section: Discussionmentioning

confidence: 99%

Protistan-Bacterial Microbiota Exhibit Stronger Species Sorting and Greater Network Connectivity Offshore than Nearshore across a Coast-to-Basin Continuum

et al. 2021

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“…As mentioned above, the inner-shelf mud belt of the ECS is formed under the influence of the ZFCC and TWC. The ZFCC transports sediments from the Yangtze River to the inner shelf of the ECS, and the upwelling caused by the TWC plays an important role in preventing sediments escaping from the inner shelf (Hu, 1984; Liu et al, 2007, 2013; Millman et al, 1985; Qin et al, 1987; Wu et al, 2015). Both across-shelf and along-shelf sediment transport, as well as the current system are shown in Figure 10.…”

Section: Discussionmentioning

confidence: 99%

“…Approximately 70% Yangtze River sediments are deposited on the modern Yangtze River Delta and ~30% are transported by the ZFCC forming the main part of the ECS inner-shelf mud belt (Milliman et al, 1985). The sediments of the mud belt mainly composed of silt, clay silt and sandy silt (Xiao et al, 2006; Xu et al, 2009a) are kept accumulating on the inner shelf by the Taiwan Warm Current (TWC) and ZFCC (Liu et al, 2007; Hu and Yang, 2001; Xiao et al, 2006) when the sea level reached the present height since 7.5–6.4 ka (Qin et al, 1987). Two depocenters (northern and southern depocenters) are identified by the isopach map of the ECS inner-shelf mud belt (Liu et al, 2007; Xu et al, 2012).…”

Section: Regional Settingmentioning

confidence: 99%

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Source-to-sink and evolutionary processes of the East China Sea inner-shelf mud belt and its response to environmental changes since the Holocene: New evidence from the distal mud belt

Cong

Jonell

et al. 2021

The Holocene

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During the past decades, the elongated mud belt, 1000 km length, in the inner shelf of the East China Sea (ECS), has been extensively studied. Previous studies mainly focused on the northern part of the mud belt. There are still many arguments on various issues of the mud belt, including the provenance discrimination, the formation mechanism, and its evolution response to climate and environmental changes. In this paper, a borehole acquired from the distal southern mud belt which penetrated the Holocene strata with the collected data was analyzed. According to the parameters of (La/Sm)UCC versus (Gd/Yb)UCC and the ternary diagram of smectite-illite-(kaolinite + chlorite), sediments from the top section of Core ECS1601 originated from the Yangtze River since 13.7 ka. Sediments from upper and lower reaches of the Yangtze River can be clearly distinguished by (Gd/Yb)UCC value. The provenance of the distal mud belt shifted from upper reaches to lower valley since 5 ka and returned to the upper reaches again since 2.5 ka, which was related to the asynchronous evolution of Asian monsoon system and anthropogenic activities. The high sedimentation rates occurring in the distal mud belt between 5 and 2.5 ka were related to the decreased sediment supply of the upper reaches and the strengthened Zhejiang-Fujian Coastal Current (ZFCC) caused by the intensified East Asian Winter Monsoon (EAWM).

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“…BP at 36 m depth at Qidong at the seaward end of the delta, Liu et al [188] reported a peat dated to 12,647 cal. BP at 30 m depth at Hemudu, while Qin et al [328] recorded a peat dated about 12,568 cal. BP in a core offshore of the Yangtze delta.…”

Section: Terrestrialisation and Peat Formationmentioning

confidence: 99%

History of Mid- and Late Holocene Palaeofloods in the Yangtze Coastal Lowlands, East China: Evaluation of Non-Pollen Palynomorph Evidence, Review and Synthesis

Innés

Zong

2021

Quaternary

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The surface of the lowland deltaic plain around Taihu (Lake Tai), south of the Yangtze river mouth in eastern China, lies near sea level and until recent drainage and development by human societies was mostly covered by wetlands of various types. It was created by regular overbank flooding, mainly from the Yangtze, and the deposition of mostly mineral sediments over the several millennia since sea level regained its current altitude in the early mid-Holocene and progradation of the Yangtze delta began. Fluvial activity has therefore been the dominant influence on sedimentation in the Taihu lowlands, and in the lower Yangtze valley generally, and has determined the character of the mainly inorganic sediment sequences that have accumulated there, with autochthonous deposition of organic sediments within the local wetland plant communities playing a minor role. The presence of both clastic flood horizons and peat layers within the deposits of the Taihu plain attests to great variability in the magnitude of fluvial input from the Yangtze, with repeated extreme floods occurring at some periods, but with periods when the growth of peat layers shows low water tables, little exogenic sediment input and so little fluvial influence. We have examined the published evidence for these different depositional environments in the lower Yangtze and the Taihu plain during the Holocene, comparing the flood history with the middle and upper reaches of the Yangtze catchment. Discrete phases of high or low flooding influence are recognised, and these correspond with large-scale Holocene climate history. Intensified human land use in recent millennia has complicated this relationship, amplifying the flooding signal. Our palynological research shows that algal microfossil type and abundance is a useful proxy for changing water depth and quality in the aquatic environments of the Holocene Taihu wetlands, and can recognise flooding events that are not registered in the floodplain lithological sequences.

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Deep structural research of the South China Sea: Progresses and directions

Cited by 14 publications

References 0 publications

Protistan-Bacterial Microbiota Exhibit Stronger Species Sorting and Greater Network Connectivity Offshore than Nearshore across a Coast-to-Basin Continuum

Protistan-Bacterial Microbiota Exhibit Stronger Species Sorting and Greater Network Connectivity Offshore than Nearshore across a Coast-to-Basin Continuum

Source-to-sink and evolutionary processes of the East China Sea inner-shelf mud belt and its response to environmental changes since the Holocene: New evidence from the distal mud belt

History of Mid- and Late Holocene Palaeofloods in the Yangtze Coastal Lowlands, East China: Evaluation of Non-Pollen Palynomorph Evidence, Review and Synthesis

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