CHARACTERISTICS OF SEDIMENTARY ENVIRONMENTS IN SANYA BAY OF HAINAN ISLAND

MAO Long-jiang; ZHANG Yong-zhan; ZHANG Zhen-ke; WEI Ling; JI Xiao-mei; ZHU Da-kui

Marine Geology & Quaternary Geology > 2007 > 27(4): 17-22.

MAO Long-jiang, ZHANG Yong-zhan, ZHANG Zhen-ke, WEI Ling, JI Xiao-mei, ZHU Da-kui. CHARACTERISTICS OF SEDIMENTARY ENVIRONMENTS IN SANYA BAY OF HAINAN ISLAND[J]. Marine Geology & Quaternary Geology, 2007, 27(4): 17-22.

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CHARACTERISTICS OF SEDIMENTARY ENVIRONMENTS IN SANYA BAY OF HAINAN ISLAND

1 College of Environmental Sciences, Peking University, Beijing 100871, China;
2 Ministry of Education Laboratory for Coast and Island Development, Nanjing University, Nanjing 210093, China

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Received Date: February 11, 2007
Revised Date: April 25, 2007

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Abstract

Abstract

Sediments of the Sanya Bay beach are mainly fine sand, and their mean grain-size diameters are mainly between 2~3 Ф and in good sorting,and thus the beach is a resource of tourism. Moreover,grain-sizes of the seafloor sediment show a combination of sand-silt-clay,and only near the cape in the west of the Sanya Bay,medium-coarse sands dominate and they were deposited in the last glacial. These ancient fluvial sediments can provide good sands for modern beach.
However,with the economic development,human activities have heavy influence on the coastal environment. Since the last two decades pollutant water to the Sanya Bay is becoming more and more from urban life with the city enlarging, so the east part of the Sanya Bay beach becomes black. Moreover, in the east of the beach,sand becomes coarser,indicating that backwash strengthens and takes fine sands away,because human constructions shorten extent of the splash zone. Therefore,there are some countermeasures using law to exploit and manage the Sanya Bay to ensure the sustainable development.
- coastal beach,
- sedimentary environment,
- Sanya Bay

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References

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CHARACTERISTICS OF SEDIMENTARY ENVIRONMENTS IN SANYA BAY OF HAINAN ISLAND