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| Chemical Weathering in the Red River Basin：Records of Major and Trace Elemental Geochemistry |
| TONG Sheng-qi1, LIU Zhi-fei1, Khanh Phon Le2, HUANG Wei1 |
1. State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China;
2. Oil and Gas Faculty, Hanoi University of Mining and Geology, Hanoi, Vietnam |
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Abstract Elemental compositions of river sediments are effectively used to study the natural weathering progress operating in a river basin.As an important river in the world,the sediments of the Red River has been paid little attention for the elemental geochemical research.Total 40 surface argillaceous sediments were collected along major and branch channels of the Red River for measuring major and trace elements.The results indicate that the Red River was experienced a silicate weathering with moderate intensity,which is similar to that of the Changjiang (Yangtze River) and the Amazon River,but stronger than that of the Huanghe(Yellow River) and weaker than that of the Pearl River.The chemical weathering intensity of rocks in the Red River basin was controlled by structural and climatic processes.
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Received: 30 May 2006
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