Statistical Analysis of Dispersion and Geochemical Patterns of Sedimentary System ...
8
Conclusions
411
Statistic analysis of grain-size and geochemical data of seabed sediments from
the northern South China has provided the classification of sediments, regionalization of sedimentary environment, and pattern of dispersion of the sedimentary system.
Grain-size distribution and chemical composition of sediments are controlled jointly by hydrodynamic condition and material supply. In particular,
Guangdong Coastal currents and Zhujiang River Diluted Current confine most
terrigenous fine sediments to the inner shelf. Local upwelling may prevent the
area from terrigenous sedimentation. Sediments on middle and outer shelf are
mostly relict fine sand, mixed with terrigenous silt and clay and biogenic/authogenic calcareous clasts. Well sorted medium-coarse sand appear in high-energy shelf break, finger delta, and beach.
References
Aitchison, J., 1982. The statistical analysis of compositional data (with discussion). J. Royal
Statist. Soc., B., 44,139-177.
Aitchison, J., 1986. The Statistical Analysis of Compositional Data. Champman and Hall,
London, 416p.
Wenke, F., Wanjun, X., and Dayuan, Y., 1988. The Geological Environment of Late Quaternary in the Northern South China Sea. Guangdong Science and Technology Publishing
House, Guangzhou, 261 p. In Chinese with English abstract.
Jianchong, H. and Qizhou, H., 1985. Classification of seasonal variations of water masses.
In: Reports pf the Comprehensiv Investigation of the South China Sea, v .. 2, China Science Publishing House, 183-204, in Chinese.
Huang, Q.Zh., Wang,W.Zh., Li,Y.S., and Li,C.W., 1994. Current characteristics of South China Sea. In Zhou,Di et al. (eds.), Oceanology of China Seas, Volume 1, Kluwer Acad. Pub.,
Dordrecht,39-47.
Zhenguo, H., Pingri, 1., Zhongying, Z., Konghong, 1. and Pengnian, Q., 1982. Formation,
Development, and Evolution of the Zhujiang River Delta. Guangdong Bran of Science
Popularization Publishing House, Guangzhou, 274 pp. In Chinese.
McLaren,P. and Bowles,D., 1985. The effects of sediment transport on grain-size distributions. J. Sed. Petrol. 55(4),457-470.
Sneath,P.H.A. and Sokal,R.R., 1973. Numerical Taxonomy. Freeman and Company, San
Francisco, 573pp.
Yang,Sh.M. and Jin,Bo, 1985. Geomorphologic and sedimentational characteristics of the
underwater delta in Zhujiang River mouth. In: Symposium on Coastal Dynamics, Geomorphology, and Sedimentation. China Science Publ. House, 35-40, in Chinese.
Huanting, 1.,1984. Basic process of the evolution of Zhujiang River Mouth. Tropic Oceanology 5(3), 79-81, in Chinese with English abstract.
Zhou Di, Chang,T., and Davis,J.C., 1983. Dual extraction of R-mode and Q-mode factor solutions. Math. Geol. 15,581-606.
Zhou, D., 1989. ROPCA: a FORTRAN program for robust principal components analysis.
Comput. Geosc.i., 15,59-78.
Zhou, D., Shaomou, c., and Hanzong, c., 1990. The geochemical zonation of sea-bottom
sediments of the shelf off Pearl River Mouth. Tropic Oceanology 10(3),21-28,in Chinese
with English abstract.
8
Conclusions
411
Statistic analysis of grain-size and geochemical data of seabed sediments from
the northern South China has provided the classification of sediments, regionalization of sedimentary environment, and pattern of dispersion of the sedimentary system.
Grain-size distribution and chemical composition of sediments are controlled jointly by hydrodynamic condition and material supply. In particular,
Guangdong Coastal currents and Zhujiang River Diluted Current confine most
terrigenous fine sediments to the inner shelf. Local upwelling may prevent the
area from terrigenous sedimentation. Sediments on middle and outer shelf are
mostly relict fine sand, mixed with terrigenous silt and clay and biogenic/authogenic calcareous clasts. Well sorted medium-coarse sand appear in high-energy shelf break, finger delta, and beach.
References
Aitchison, J., 1982. The statistical analysis of compositional data (with discussion). J. Royal
Statist. Soc., B., 44,139-177.
Aitchison, J., 1986. The Statistical Analysis of Compositional Data. Champman and Hall,
London, 416p.
Wenke, F., Wanjun, X., and Dayuan, Y., 1988. The Geological Environment of Late Quaternary in the Northern South China Sea. Guangdong Science and Technology Publishing
House, Guangzhou, 261 p. In Chinese with English abstract.
Jianchong, H. and Qizhou, H., 1985. Classification of seasonal variations of water masses.
In: Reports pf the Comprehensiv Investigation of the South China Sea, v .. 2, China Science Publishing House, 183-204, in Chinese.
Huang, Q.Zh., Wang,W.Zh., Li,Y.S., and Li,C.W., 1994. Current characteristics of South China Sea. In Zhou,Di et al. (eds.), Oceanology of China Seas, Volume 1, Kluwer Acad. Pub.,
Dordrecht,39-47.
Zhenguo, H., Pingri, 1., Zhongying, Z., Konghong, 1. and Pengnian, Q., 1982. Formation,
Development, and Evolution of the Zhujiang River Delta. Guangdong Bran of Science
Popularization Publishing House, Guangzhou, 274 pp. In Chinese.
McLaren,P. and Bowles,D., 1985. The effects of sediment transport on grain-size distributions. J. Sed. Petrol. 55(4),457-470.
Sneath,P.H.A. and Sokal,R.R., 1973. Numerical Taxonomy. Freeman and Company, San
Francisco, 573pp.
Yang,Sh.M. and Jin,Bo, 1985. Geomorphologic and sedimentational characteristics of the
underwater delta in Zhujiang River mouth. In: Symposium on Coastal Dynamics, Geomorphology, and Sedimentation. China Science Publ. House, 35-40, in Chinese.
Huanting, 1.,1984. Basic process of the evolution of Zhujiang River Mouth. Tropic Oceanology 5(3), 79-81, in Chinese with English abstract.
Zhou Di, Chang,T., and Davis,J.C., 1983. Dual extraction of R-mode and Q-mode factor solutions. Math. Geol. 15,581-606.
Zhou, D., 1989. ROPCA: a FORTRAN program for robust principal components analysis.
Comput. Geosc.i., 15,59-78.
Zhou, D., Shaomou, c., and Hanzong, c., 1990. The geochemical zonation of sea-bottom
sediments of the shelf off Pearl River Mouth. Tropic Oceanology 10(3),21-28,in Chinese
with English abstract.