Marine geology

Surface sediment characteristics and transport trend in Lingdingyang Bay of the Pearl River Estuary

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  • South China Sea Marine Engineering Surveying Center, SOA, Guangzhou 510300, China

Received date: 2010-01-12

  Revised date: 2010-07-16

  Online published: 2011-09-08

Abstract

The authors analyzed surface sediment characteristics of Lingdingyang Bay in the Pearl River Estuary based on 230
bed material samples collected in December 2004. Sediment transport trends were identified by the grain-size trends calculated
using the Gao-Collins Grain Size Trend Analysis Model (GSTA model). The results indicate that there are six types of bed
materials in the Lingdingyang Bay, with clayey silt being the dominant type. Under the influences of runoff, tidal current, wind
waves, and salty water, the bed sediments in the northern zone are the coarsest; those in the southern zone are coarse; those in
the middle zone are the finest; and those in the eastern zone are a little coarser than those in the western zone. The sorting of
bed sediment becomes better and better from the middle zone to both the east coast and the west coast, but the total sorting is
poor. The spatial distribution and deposition characteristics of different grain-size sediments are different. The patterns of the
sediment transport in the Lingdingyang Bay are very complex, but the total sediment transport trend is southwestward. Under
the influences of various forcing, the sediments around the inner Lingdingyang Bay take on a clockwise rotation circumfluence
transport; the center zone of the inner Lingdingyang Bay is the maximum turbidity zone and the sediments mostly deposit
vertically. Under the influences of slit and clay diffusing westward, the sediments in the southern zone of Qi’ ao Island and the
eastern zone of Macau Peninsula transport to the west. The Dayu Strait and its adjacent sea area of outer Lingding Island are
the main inlets of high salinity water, and the sediments transport to the northwest.

Cite this article

XIAO Zhi-jian,LI Tuan-jie,LIAO Shi-zhi . Surface sediment characteristics and transport trend in Lingdingyang Bay of the Pearl River Estuary[J]. Journal of Tropical Oceanography, 2011 , 30(4) : 58 -65 . DOI: 10.11978/j.issn.1009-5470.2011.04.058

References

[1] PETTIJOHN F G, POTTER P D, SIEVER R. Sand and Sandstone[M]. New York: Springer-Verlag, 1972: 1-618. 
[2] MCLAREN P A, BOELES D. The effects of sediment transport on grain-size distributions[J]. Sedimentary Petrology, 1985, 55: 457-470.
[3] GAO SHU, COLLINS M. Net sediment transport patterns inferred from grain-size trends, based upon definition of "transport vectors"[J]. Sedimentary Geology, 1992, 81(1): 47-60.
[4] GAO SHU, COLLINS M. Analysis of grain-size trends, for defining sediment transport pathways in marine environments[J]. Coastal Research, 1994, 10(1): 70-78.
[5] 高抒, COLLINS M. 沉积物粒径趋势与海洋沉积动力学[J]. 中国科学基金, 1998(4): 241-246.
[6] GAO SHU. A fortran program for grain size trend analysis to define net sediment transport pathways[J]. Computers and Geosciences, 1996, 22(4): 449-452.
[7] GAO SHU, COLLINS M, LANCKENS J, et al. Grain size trends associated with net sediment transport patterns: an example from the Belgian continental shelf[J]. Marine Geology, 1994, 121(3/4): 171-185.
[8] 陈子燊. 粤西水东湾现代沉积环境特征与泥沙搬运路径[J]. 热带海洋, 1996, 15(3): 6-13.
[9] 任杰, 刘沛然, 戴志军. 粤西海陵湾底质沉积特征与泥沙输运路径[J]. 台湾海峡, 2001, 20(1): 96-100.
[10] 程鹏, 高抒. 北黄海西部海底沉积物的粒度特征和净输运趋势[J]. 海洋与湖沼, 2000, 31(6): 604-615.
[11] 梁娟, 李春初, 王世俊. 珠江磨刀门河口底质沉积特征及其泥沙运移趋势[J]. 海洋通报, 2006, 25(5): 57-63.
[12] 江四义, 王文介. 珠江口表层沉积物的粒度特征和分析[C]//珠江口海岸带和海涂资源综合调查研究文集(二). 广州: 广东科技出版社, 1984: 23-31.
[13] 王文介. 珠江口的沉积作用和沉积相[J]. 沉积学报, 1985, 3(2): 129-139.
[14] 李春初, 王文介. 珠江河口沉积[C]//全国第三届海岸工程讨论会第7辑. 北京: 海洋出版社, 1984: 94-95.
[15] 莫理景, 陈树珍. 珠江口底质沉积特征[C]//珠江口海岸带和海涂资源综合调查研究文集(四). 广州: 广东科技出版社, 1986: 89-100.
[16] 周蒂, 范时清. 珠江口外现代沉积物运移方向的统计分析[J]. 热带海洋, 1989, 8(3): 96-103.
[17] 陈耀泰. 珠江口沉积分区[J]. 中山大学学报: 自然科学版, 1995, 34(3): 109-114.
[18] 彭晓彤, 周怀阳, 叶瑛, 等. 珠江河口沉积物粒度特征及其对底层水动力环境的指示[J]. 沉积学报, 2004, 22(3): 487-493.
[19] 江四义, 郑兆勇. 从珠江口沉积物粒度参数特征分析泥沙来源及其运移趋势[J]. 中山大学学报: 自然科学版, 2008, 47(增刊): 126-129.
[20] 李春初, 雷亚平, 何为, 等. 珠江河口演变规律及治理利用问题[J]. 泥沙研究, 2002(3): 44-51.
[21] 中华人民共和国国家质量监督检验检疫总局, 中国国家标准化管理委员会. GB/T13909—1992 海洋调查规范: 海洋地质地球物理调查[S]. 北京: 中国标准出版社, 1992: 1-76.
[22] 中华人民共和国国家质量监督检验检疫总局, 中国国家标准化管理委员会. GB/T12763.8—2007 海洋调查规范: 第8部分: 海洋地质地球物理调查[S]. 北京: 中国标准出版社, 2007: 1-94.
[23] MCMANUS J. Grain Size Determination and Interpretation[M]//Tucker M. Techniques in Sedimentology. Oxford: Backwell Oxford, 1988: 63-85.
[24] WU JIAXUE, SHEN HUANTING. Estuarine bottom sediment transport based on the ‘McLaren Model’: a case study of Huangmaohai Estuary, South China[J]. Estuarine, Coastal and Shelf Science, 1999, 49(2): 265-279.
[25] 田向平. 珠江河口伶仃洋最大混浊带研究[J]. 热带海洋, 1986, 5(2): 27-35.
[26] 韩保新, 郭振仁, 冼开康, 等. 珠江河口海区潮流的数值模拟[J]. 海洋与湖沼, 1992, 23(5): 475-484.
[27] 任杰, 吴超羽, 包芸. 珠江虎门口动力结构研究[J]. 中山大学学报: 自然科学版, 2006, 45(3): 105-109.

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