Influence of the Kuroshio current intrusion on depositional environment in the Northern South China Sea: Evidence from surface sediment records

Liu, Jianguo; Xiang, Rong; Chen, Mu‐Hong; Zhong, Cheng; Yan, Wen; Liu, Fang

doi:10.1016/j.margeo.2011.05.010

Cited by 65 publications

(39 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8), surprisingly little research has focused on details of the transport mechanisms of the heavy minerals in these deposits. Previous studies on sediment transport on the northern shelf of the SCS have been based on clay mineral analyses and bulk-rock geochemistry, which have demonstrated the presence of surface and deep-water currents, including the Guangdong Longshore Current (GDLC), the SCS Warm Current (SCSWC), the SCS Branch of the Kuroshio Current (SCSBK), and the Branch of the North Pacific Deep Water Current (BNPDWC), which are the most important currents transporting sediments to the northern SCS from various provenances (Cai et al, 2013;Liu et al, 2011Liu et al, , 2012Liu et al, , 2013Liu Z.F. et al, 2008Liu Z.F.…”

Section: Transport Mechanismsmentioning

confidence: 99%

Using zircon U–Pb ages to constrain the provenance and transport of heavy minerals within the northwestern shelf of the South China Sea

Zhong

Yan

et al. 2017

Journal of Asian Earth Sciences

Self Cite

View full text Add to dashboard Cite

Numerous ore-grade heavy mineral placer deposits occur in the northern South China Sea region. Previous studies on these deposits have focused on the heavy-mineral ore resources themselves, but the provenance and transport pathways of these heavy minerals are poorly constrained. This paper presents U-Pb ages of detrital zircons from sediments within the northwestern shelf of the South China Sea, and uses this new dataset to determine the provenance and transport pathway of the sediments. Zircons in sediments from ten areas of the northwestern shelf exhibit distinct age populations, suggesting that they have multiple provenances. Zircons in sediments from the Pearl River Mouth, Shangchuan Island, and Moyang River Mouth areas all have an obvious peak of Mesozoic ages, indicating that they have similar sediment

show abstract

Section: Transport Mechanismsmentioning

confidence: 99%

Using zircon U–Pb ages to constrain the provenance and transport of heavy minerals within the northwestern shelf of the South China Sea

Zhong

Yan

et al. 2017

Journal of Asian Earth Sciences

Self Cite

View full text Add to dashboard Cite

show abstract

“…The northern SCS is an area of active sedimentation with possible input of terrigenous sediment from the Pearl, Red and Yangtze rivers, as well as the islands of Taiwan and Luzon (Shao et al, 2009;Wan et al, 2007). After these river-derived terrigenous sediments enter the sea, most are deposited on the continental shelf, but a small amount is transported further where it is deposited on the abyssal basin (Liu et al, 2011). Regardless, sediment transport and depositional dynamics involve ocean circulation, which is comparatively complex in the SCS (Wan et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Bottom water hydrodynamic provinces and transport patterns of the northern South China Sea: Evidence from grain size of the terrigenous sediments

Zhong

Chen

Liang³

et al. 2017

Continental Shelf Research

Self Cite

View full text Add to dashboard Cite

Sediment transport in the source-to-sink systems of the northern South China Sea (SCS) has been of increasing interest during the past few decades. However, the mechanisms for sediment redistribution remain unclear. Sources and transport patterns in the northern SCS were investigated in this study based on grain size analyses of 205 surface sediment samples. Detailed characterizations of hydrodynamic conditions and sediment transport have been made using the log-ratio method to partition grain size components of surface sediments in the northern SCS. Results reveal that sediment dispersal patterns in the region generally contain traction, saltation, graded and uniform suspension modes. Based on the spatial distribution characteristics, the study area can be classified into three hydrodynamic provinces. Province A contains high traction concentrations that are exposed to the longshore current and topographic features, which are distributed in the Taiwan Shoal, Dongsha Islands and extends from the Pearl River estuary to the southeast of Hainan Island. Province B is characterized by higher values of saltation and graded suspension, which are widespread along the northern slope of the SCS, and its formation is interpreted as the result of interactions between down-and along-slope processes. Province C reaches its greatest concentration in the abyssal areas, particularly in the vicinity of Luzon Island, which settles only under calm conditions. Combined with previous data concerning magnetic susceptibility distributions of surface sediments from the northern SCS, the sediment transport route near the mainland is traced. Furthermore, based on distribution pattern of sortable silts and hydrodynamic 3 provenance of the terrigenous sediments, the sediment transport route in the deep water region of the northern SCS is outlined. It flows along marginal channels which cut across the continental slope along isobaths. Taken together, the combination of grain-size components and sortable silts of surface sediment used here is a promising tool to better assess the modern variability of hydrodynamic conditions and transport processes in marine environments.

show abstract

“…Monsoon winds after (Webster 1994); surface current after (Shaw and Chao 1994;Fang et al 1998;Hu et al 2000); deep current deduced from (Qu et al 2006); longshore current after (Wang et al 1986). Numbers for winter and summer currents (Fang et al 1998;Li et al 1998;Hu et al 2000;Caruso et al 2006;Liu et al 2010Liu et al , 2011Liu et al , 2012: 1, Guangdong Coastal Current; 2, SCS Warm Current (SCSWC); 3, NW Luzon Coastal Current; 4, NW Luzon Cyclonic Eddy; 5, NW Luzon Cyclonic Gyre; 6, SCS Branch of Kuroshio (SCSBK); 7, Loop Current; 8, Longshore Current; 9, Deep water Current.…”

Section: Current Systems Effects On Sea-surface Chl-a Concentrationmentioning

confidence: 99%

“…Compared with large amounts of sediments from the Pearl River and Taiwan Island, sediment discharge from Luzon Island is limited (Liu et al 2011). Sediments from Luzon Island are confined within the northwest of Luzon Island and hardly transported to the northern shelf of the SCS throughout the SCSBK flow route.…”

Section: Current Systems Effects On Sea-surface Chl-a Concentrationmentioning

confidence: 99%

Surface Chlorophyll-a Concentration Spatio-Temporal Variations in the Northern South China Sea Detected Using MODIS Data

Fang¹,

Ju²,

Liu³

et al. 2015

Terr. Atmos. Ocean. Sci.

View full text Add to dashboard Cite

This study examines the spatio-temporal variations in the sea-surface chlorophyll-a (Chl-a) concentration and their associated underlying driving forces in the northern South China Sea (SCS) from 2004 -2010. A stratified analysis method and the Moderate Resolution Imaging Spectroradiometer (MODIS) Chl-a product, the National Centers for Environmental Prediction (NCEP) reanalysis data, with maps of monsoon winds and current systems were used in this work. Validation indicated that the MODIS-derived Chl-a is in good agreement with in-situ measurements (R 2 = 0.815), accurate enough for analyzing the temporal-spatial variations of Chl-a in the northern SCS. The results show that the spatial heterogeneity of the Chl-a concentration was lowest in winter and increased in spring. The seasonal Chl-a concentration dynamics varied spatially and depended predominantly on the distance from the coastline. The most important factors that affect the Chl-a concentration spatial variability were identified as the monsoon, surface current and sea surface temperature (SST).

show abstract

Influence of the Kuroshio current intrusion on depositional environment in the Northern South China Sea: Evidence from surface sediment records

Cited by 65 publications

References 54 publications

Using zircon U–Pb ages to constrain the provenance and transport of heavy minerals within the northwestern shelf of the South China Sea

Using zircon U–Pb ages to constrain the provenance and transport of heavy minerals within the northwestern shelf of the South China Sea

Bottom water hydrodynamic provinces and transport patterns of the northern South China Sea: Evidence from grain size of the terrigenous sediments

Surface Chlorophyll-a Concentration Spatio-Temporal Variations in the Northern South China Sea Detected Using MODIS Data

Contact Info

Product

Resources

About