nlwxpearo
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 Posted: Thu 22:06, 17 Feb 2011 Post subject: Hangzhou Bay sediment and sediment particle size c |
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,[link widoczny dla zalogowanych]
Hangzhou Bay sediment and sediment particle size characteristics of the source
Topography and sediment distribution point of view, in the period of time, in a wide range, did not lead to the end of Hangzhou Bay, the distribution of a significant qualitative change. In 1982 and 1960 were compared with sediment, their general trend is very similar. It follows that, at least in the 1960-1982 period,[link widoczny dla zalogowanych], the Hangzhou Bay sediment distribution has not changed,[link widoczny dla zalogowanych], in large part reflects the trend of Hangzhou Bay, the source of strength and relative stability of sediment. V. CONCLUSIONS Hangzhou Bay is a tidal bay, inside and outside the water force in the Gulf and material supplies are relatively stable conditions, the formation of the Hangzhou Bay is currently the distribution of sediments. Types of sediment and silt dominated muddy silt, sediment distribution generally close to the south and north sides coarse material, intermediate smaller; from the bay to the Bay from the small particle size gradually thicken, sorting by degree of difference to the good. Exchange of material from the inside and outside the Gulf, flow characteristics, particle size distribution and mineral composition, etc., reflecting the end of Hangzhou Bay, the material quality of the source, very little sediment upstream of Qiantang River, and the waters outside the bay to the sand-based. Yangtze River estuary sediment output. And the estuary of the Yangtze subaqueous delta deposits of fine grained sediment, after being tilted, with the rising tide into the Hangzhou Bay in Hangzhou Bay, the main material source of sediments. The age distribution of different sediment appeared in contrast to similar phenomena. In recent years, reflecting the hydrodynamic conditions and the relative stability of the source material, which for the development and utilization of Hangzhou Bay, is important. This article by Yu Zhiying,[link widoczny dla zalogowanych], Professor,[link widoczny dla zalogowanych], Associate Professor Cao Peikui enthusiasm to help, thank you.
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