| Sediment mass and distribution in the South China Sea since the Oligocene |
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| 基金项目： | 国家重点基础研究发展计划(973计划);国家自然科学基金 |
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| 摘 要： | The sediment macro-distribution patterns and their evolutionary characteristics in the South China Sea (SCS) are discussed based on a quantification of the sediment mass from the be- ginning of seafloor spreading in the Oligocene to the Present. Above the pre-Oligocene base, the total sediment mass for the whole SCS is estimated to be 1.44×1016 t, with the highest average accumulation rate of ~22 g·cm-2·ka-1 in the Oligocene. Having no large abyssal fans but fast accumulation in sedimentary basins on the continental shelf and slope, the SCS shows quite different sedimentary characters not only from the open ocean but also from small backarc basins along the marginal West Pacific, apparently controlled by the coupling between local tectonics and global climate changes.
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| 收稿时间： | 7 April 2006 |
| 修稿时间： | 7 June 2006 |
Sediment mass and distribution in the South China Sea since the Oligocene |
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| Authors: | HUANG Wei WANG Pinxian |
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| Institution: | State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China |
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| Abstract: | The sediment macro-distribution patterns and their evolutionary characteristics in the South China Sea (SCS) are discussed
based on a quantification of the sediment mass from the beginning of seafloor spreading in the Oligocene to the Present. Above
the pre-Oligocene base, the total sediment mass for the whole SCS is estimated to be 1.44×1016 t, with the highest average accumulation rate of ∼22 g·cm−2·ka−1 in the Oligocene. Having no large abyssal fans but fast accumulation in sedimentary basins on the continental shelf and slope,
the SCS shows quite different sedimentary characters not only from the open ocean but also from small backarc basins along
the marginal West Pacific, apparently controlled by the coupling between local tectonics and global climate changes. |
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| Keywords: | sedimentary patterns sediment mass West Pacific marginal seas South China Sea |
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