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Abstract

Congo Fan is one of the largest fans in the world. However, the stratigraphic framework is still ambiguous. To better set up the sequence stratigraphic framework in the Miocene Congo Fan, a suitable model has been proposed based on 3D seismic data, well log and core data. In this model, the sequence boundaries are the erosion surfaces, probably with MTCs covering; the upper part of a sequence is the hemipelagic condensation section; the lower part is the confined channel complexes. The model was used to divide the focused area of Miocene Congo Fan into four sequences, named SQ1, SQ2, SQ3 and SQ4 respectively. The result shows that each sequence retrogrades landwards from bottom to top with the base-level rise and four sequences gradually progradated seawards from SQ1 to SQ4, corresponding to the base-level fall. We believe that the model will not only deepen the geological understanding of the focused area, but also can be used to set up the stratigraphic framework in the deepwater areas, in which the sequence evolution is similar to the Congo Fan.

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/content/papers/10.3997/2214-4609.20130318
2013-06-10
2024-03-28
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20130318
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