| SOURCES OF INNER-SHELF SEDIMENT IN THE NORTHERN SOUTH CHINA SEA AND THE CONTROLLING FACTORS |
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| 作者姓名： | 陈俊仁 郑祥民 |
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| 作者单位： | South China Sea Geological Survey Command of Ministry of Geology and Mineral Resources, Guangzhou;Department of Geography, East China Normal University, Shanghai |
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| 摘 要： | The sediments on the inner shelf of the northern South China Sea, mainly composed of terrigenous fragments, are continually transported herein by streams and floods. The coastal and strait-bottom erosion by waves and currents also contribute to the sedimentation. Under the dynamic conditions of the sea, the terrigenous sediments are differentiated with the coarse debris deposited mainly within the 20 m isobath off Guangdong, Guangxi and the Hainan Island. Organisms thrive in some areas, forming coral-reef platforms, foraminifera sand and shell sand. Chemically-formed clay minerals and various authigenic ones are developed in gulf and outlet areas. The modern sediments, thin in depth, are attributed to the short period of ingression of the sea, and their distribution is controlled by a variety of factors with the sea-level changes dominating.
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| 收稿时间： | 1986/4/30 0:00:00 |
| 修稿时间： | 1986/12/20 0:00:00 |
SOURCES OF INNER-SHELF SEDIMENT IN THE NORTHERN SOUTH CHINA SEA AND THE CONTROLLING FACTORS |
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| CHEN JUNREN and ZHENG XIANGMIN.SOURCES OF INNER-SHELF SEDIMENT IN THE NORTHERN SOUTH CHINA SEA AND THE CONTROLLING FACTORS[J].Acta Oceanologica Sinica,1987,6(4):589-598. |
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| Authors: | CHEN JUNREN and ZHENG XIANGMIN |
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| Institution: | 1.South China Sea Geological Survey Command of Ministry of Geology and Mineral Resources, Guangzhou2.Department of Geography, East China Normal University, Shanghai |
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| Abstract: | The sediments on the inner shelf of the northern South China Sea, mainly composed of terrigenous fragments, are continually transported herein by streams and floods. The coastal and strait-bottom erosion by waves and currents also contribute to the sedimentation. Under the dynamic conditions of the sea, the terrigenous sediments are differentiated with the coarse debris deposited mainly within the 20 m isobath off Guangdong, Guangxi and the Hainan Island. Organisms thrive in some areas, forming coral-reef platforms, foraminifera sand and shell sand. Chemically-formed clay minerals and various authigenic ones are developed in gulf and outlet areas. The modern sediments, thin in depth, are attributed to the short period of ingression of the sea, and their distribution is controlled by a variety of factors with the sea-level changes dominating. |
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