| Author's Name: Liu Ziyu，Lü Ming，Lu Jingmei，Lü Dong，Wang Ying，Guo Gang |
| Institution: CNOOC Research Institute |
| Abstract: |
| Based on the analysis of core observation，drilling data，seismic data and sediment provenance，the tectonic and sedimentary evolution of Ruvuma Basin are characterised in detail，and the preliminary sediment model under the condition of typical narrow shelf is proposed. The analysis result shows that the shelf is very narrow, and the upper slope is rather precipitous where the canyon and channel develop well, but lower slope is tending to flat and it is conducive to developing a wide range of submarine fan system. The deposit is mainly controlled by Ruvuma drainage，and the sediments supply is adequate triggered by uplifting and erosion in western part of Ruvuma Basin which undergone the regional uplift since Oligocene. In addition, Ruvuma drainage developed so well which coincided with the global regressive that huge sedimentary system of delta-channel-submarine fan developed with strong provenance supplying to submarine fan. |
| Keywords: Deep-water；Sedimentary characteristics；Submarine fan；Channel；Ruvuma Basin；Eastern Africa |
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投稿时间：
2015-05-25 |
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