The Study Of Dynamic Geomorphology,Dynamic Deposition And There Relation Between Sediment Heavy Metal In Laizhou Shoal

It's study the dynamic geomorphology, dynamic deposition and the relation withheavy metals in surface sediments of the Laizhou shoal for the first time. From theexperiment, I get the data of granularity character, the content of Pb, Zn, Cu, Cr, Li, Aland Fe. Based on this data, I study the character of dynamic deposition, the characterof geochemistry and the relation between them, and study heavy metal contaminationof Laizhou shoal.Under the control of deposition dynamic process, Laizhou shoal moves tonorth-east and extend to north-west slowly. Because of the activity of human, Laizhoushoal has been eroded since 1958. It is alluvial on the top of the shoal and it'sconstitutes are mainly grit, gravel and silt on the top of Laizhou shoal. It is eroding atboth sides of Laizhou shoal. It's alluvial at the North-East of the shoal at all time sincethe Laizhou shoal came into being. But it's diverse at the South-West. The area oferosive diminished and become steady or alluvial area since 1984.There are many types of sediments in the small area. It has a big difference ofsediments type in difference place. The main body of Laizhou shoal is composed ofgravels and silts, which granule is bulky. And this is a representation of powerfullywater dynamic currents. It has small granule in the sediments of North-East andSouth-West of Laizhou shoal and this reflected weak water dynamic. The averagegranularity of the sediment is between –0.4~7.55Фand the top of the shoal is lessthan 1Ф. The distribution curve of the granularity is symmetry and has a goodclassification. The sediments of other position of the study area has bad classificationand the content of clay is high.The study area was divided into three based on the continuity of samples and theintegrality of geomorphology cell. The orderliness of sediments granularity characterreflects the complexity of water dynamic in this area. It's controlled by waves in shoreand is controlled by tides off shore at the North-East of Laizhou shoal. The main bodyof Laizhou shoal is controlled by waves and tides too. But the water dynamic...