Sedimentary geochemistry of the Yangtze River: Sediment source-to-sink tracing implication

2006 ◽  
Vol 25 (S1) ◽  
pp. 268-268
Author(s):  
Shouye Yang
Keyword(s):  
Yangtze River ◽  
River Sediment ◽  
Sediment Source ◽  
The Yangtze River ◽  
Sedimentary Geochemistry ◽  
Source To Sink

scholarly journals Provenance Shift during the Plio-Pleistocene in the Vertex of Yangtze Delta and Its Geomorphological Implications

Minerals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 996
Author(s):  
Junjie Yu ◽  
Wei Yue ◽  
Ping Liu ◽  
Bo Peng ◽  
Jie Zhang ◽  
...  
Keyword(s):  
Yangtze River ◽  
River Channel ◽  
Heavy Minerals ◽  
Tectonic Subsidence ◽  
Zircon Geochronology ◽  
The Yangtze River ◽  
Yangtze Delta ◽  
The South ◽  
Source To Sink ◽  
Regional Tectonic

One of the key issues of the Source-to-Sink process is revealing the geomorphological evolutions of large rivers from the perspective of river sink areas. This study aims to reveal the provenance change near the vertex of the Yangtze delta during the late Cenozoic and provide insight into the Yangtze channelization into the sea due to regional tectonic subsidence. Heavy minerals and zircon geochronology in the Plio-Pleistocene sediments of the vertex of the modern Yangtze delta (core RGK15) reveal that a significant provenance shift occurred at ~2.6 Ma (the beginning of the Pleistocene). During the Pliocene, ultra-stable heavy minerals and pre-Mesozoic zircon grains predominated in the sediments, probably derived from contemporary outcrops of sedimentary rock that were widely distributed in the delta and its surrounding area. They are completely different from those in the Pliocene sediments of the south delta, indicating that decentralized, local, small watersheds dominated the Yangtze delta during the Pliocene. This resulted from the relatively elevated terrain of this region due to the adjacent ancient Zhejiang–Fujian Uplift (ZFU) at that time. However, diversified heavy minerals and zircon geochronology similar to those of the modern upper Yangtze fingerprints occur in the Pleistocene sediments of core RGK15, implying that a significant provenance shift to the Yangtze River occurred here at ~2.6 Ma. The provenance shift recorded by the cores in the south delta mainly occurred at ~1.2 Ma, indicating that the Yangtze River channel was dragged southward with the further subsidence of the ancient Zhejiang–Fujian Uplift. This study reveals the southward migration process of the Yangtze River channel with the regional tectonic subsidence from the perspective of provenance evolution, which contributes to an understanding of when the Yangtze River channelized into the sea.

Analysis of Persistent Organic Pollutants in Sediments of the Wanzhou Section of the Yangtze River

2012 ◽  
Vol 518-523 ◽  
pp. 2352-2355
Author(s):  
Jun Sheng Qi ◽  
Yu Ling Wang ◽  
Chuan Fu ◽  
Kun Xie
Keyword(s):  
Polychlorinated Biphenyls ◽  
Organochlorine Pesticides ◽  
Industrial Wastewater ◽  
Yangtze River ◽  
River Sediment ◽  
Water Environment ◽  
The Yangtze River ◽  
Point Source Pollution ◽  
The Impact ◽  
Direct Discharge

Organochlorine pesticides and polychlorinated biphenyls content can be obtained By measuring Wanzhou of the Yangtze River and Wanzhou Zhuxi River in sediment : Sediment content of organochlorine pesticides and polychlorinated biphenyls are increased the river down. Organochlorine pesticides in sediments are β-HCH> δ-HCH> α-HCH> γ-HCH, and pp'-DDE> pp '-DDD> op'-DDT> pp'-DDT. Organochlorine pesticides and PCBs of Wanzhou of the Yangtze River sediment in the distribution of the sampling points are similar characteristics. The main source of pollution is the direct discharge of industrial wastewater, agricultural pollution and soil erosion of farmland. Although OCPs and PCBs in water environment are very low, the impact on human health can not be ignored. Therefore certain measures are taken to clean emissions from industrial wastewater and agricultural non-point source pollution control.

Sorption of Phthalate Esters on Surficial Sediment of the Yangtze River, China

2014 ◽  
Vol 1073-1076 ◽  
pp. 263-267
Author(s):  
Chun Xiao Wang ◽  
Xiao Ling Shao ◽  
Xiang Yang Wu
Keyword(s):  
Adsorption Isotherms ◽  
Yangtze River ◽  
Phthalic Acid ◽  
River Sediment ◽  
Phthalate Esters ◽  
Langmuir Model ◽  
The Yangtze River ◽  
Phthalic Acid Esters ◽  
Freundlich Model ◽  
Acid Esters

The sorption of three kinds of phthalic acid esters (PAEs) in the Yangtze River sediment was investigated in this paper. Langmuir and Freundlich model were used to fit their adsorption isotherms. Results showed that Langmuir model could better fit the adsorption isotherms of PAEs in the sediment.

scholarly journals The time scale of river sediment source-to-sink processes in East Asia

2016 ◽  
Vol 446 ◽  
pp. 138-146 ◽  
Author(s):  
Chao Li ◽  
Shouye Yang ◽  
Jian-xin Zhao ◽  
Anthony Dosseto ◽  
Lei Bi ◽  
...  
Keyword(s):  
East Asia ◽  
Time Scale ◽  
River Sediment ◽  
Sediment Source ◽  
Source To Sink

Magnetic evidence for Yellow River sediment in the late Holocene deposit of the Yangtze River Delta, China

2020 ◽  
Vol 427 ◽  
pp. 106274 ◽  
Author(s):  
Feng Wang ◽  
Weiguo Zhang ◽  
Xiaomei Nian ◽  
Andrew P. Roberts ◽  
Xiang Zhao ◽  
...  
Keyword(s):  
Yangtze River ◽  
Late Holocene ◽  
River Sediment ◽  
Yellow River ◽  
Yangtze River Delta ◽  
River Delta ◽  
The Yangtze River ◽  
Yellow River Sediment ◽  
The Yangtze River Delta

Yiling Multi-span Cable-Stayed Bridge over the Yangtze River

2004 ◽  
Vol 88 (8) ◽  
pp. 59-64
Author(s):  
Changyu Shao ◽  
Qinger Deng
Keyword(s):  
Yangtze River ◽  
The Yangtze River ◽  
Cable Stayed Bridge
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