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GAO Shui-tu, ZHANG De-yu, CHEN Rong-hua, ZHAO Qing-ying. Composition of clay and detrital minerals in surface sediment of the northern South China Sea and geological significance[J]. Haiyang Xuebao, 2008, 30(1): 86-92.
Citation:
GAO Shui-tu, ZHANG De-yu, CHEN Rong-hua, ZHAO Qing-ying. Composition of clay and detrital minerals in surface sediment of the northern South China Sea and geological significance[J]. Haiyang Xuebao, 2008, 30(1): 86-92.
GAO Shui-tu, ZHANG De-yu, CHEN Rong-hua, ZHAO Qing-ying. Composition of clay and detrital minerals in surface sediment of the northern South China Sea and geological significance[J]. Haiyang Xuebao, 2008, 30(1): 86-92.
Citation:
GAO Shui-tu, ZHANG De-yu, CHEN Rong-hua, ZHAO Qing-ying. Composition of clay and detrital minerals in surface sediment of the northern South China Sea and geological significance[J]. Haiyang Xuebao, 2008, 30(1): 86-92.
Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Key Laboratory of Submarine Geosciences of State Oceanic Administration, Second Institute of Oceanogranhy, State Oceanic Administration, Hangzhou 310012, China
2.
First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
The compositions of clay and detrital minerals in the surface sediment of the northern South China Sea are studied based on the analyses of X-ray diffraction and micro scope observations.It is found that clay minerals consist mainly of illite, smectite, kaolinite and chlorite.Distribution characeteristics of the clay and detrital minerals are apparently different in the western and eastern areas.Detrital compositions are mainly microf ossils (calcareous and siliceous), light minerals (quartz and feldspar), and many kinds of heavy minerals with low contents.The research result shows that the detrital materials are derived from the fine eroded debris in the coastal areas by the sea current.The distributions of calcareous and siliceous micro fossils are apparently controlled by the carbonate dissolution.
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