Distributional characteristics of grain sizes of surface sediments in the Zhujiang River Estuary

JIANG Siyi; XU Fangjian; LI Yan; LIU Xiling; ZHAO Yongfang; XU Wei

doi:10.1007/s13131-014-0462-1

Volume 33 Issue 4

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Article Navigation > Acta Oceanologica Sinica > 2014 > 33(4): 30-36

JIANG Siyi, XU Fangjian, LI Yan, LIU Xiling, ZHAO Yongfang, XU Wei. Distributional characteristics of grain sizes of surface sediments in the Zhujiang River Estuary[J]. Acta Oceanologica Sinica, 2014, 33(4): 30-36. doi: 10.1007/s13131-014-0462-1

Citation:

JIANG Siyi, XU Fangjian, LI Yan, LIU Xiling, ZHAO Yongfang, XU Wei. Distributional characteristics of grain sizes of surface sediments in the Zhujiang River Estuary[J]. Acta Oceanologica Sinica, 2014, 33(4): 30-36. doi: 10.1007/s13131-014-0462-1

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Distributional characteristics of grain sizes of surface sediments in the Zhujiang River Estuary

doi: 10.1007/s13131-014-0462-1

1.
South China Sea Information Center State Oceanic Administration, Guangzhou 510300, China
2.
School of Geosciences, China University of Petroleum, Qingdao 266580, China
3.
Yantai Ocean Environmental Monitoring Central Station of State Oceanic Administration, Yantai 264006, China
4.
Overseas Evaluation Center of CNOOC Research Institute, Beijing 100027, China
5.
Jiaozhou Bay Marine Ecosystem Research Station, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China

Received Date: 2012-01-12
Rev Recd Date: 2012-10-20

Abstract

Abstract

Distributions of the parameters of sedimentary grain sizes and their correlations were studied to trace the sources of silts and their movement trends in the Zhujiang River Estuary based on the analyses of grain sizes from more than 1 080 sedimentary samples. The distributions of the median diameter, public value, quartile deviation, and skewness of sediments were complex in the Zhujiang River Estuary mainly because of the impact of the matter source regions, distances from the source regions, and hydrodynamic conditions, such as waves, tidal currents, and coastal currents. Analyses of the parameters of the grain sizes for the various types of sediments showed that the distributions of the surface sediments in the Zhujiang River Estuary were controlled by many factors. Their matter sources were mainly the sediments discharged from the runoffs and ebb tidal currents, and from the open sea. The sediments mainly moved by suspension movement. The silts formed a large area of sediments with suspended fine silts in the Zhujiang River Estuary by internal adjustment transportation in the area, and moved toward the western coast of the Zhujiang River Estuary under the effect of Coriolis forces and coastal currents.
- grain size,
- Zhujiang River,
- sediment,
- transport trend

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References

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