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The long-term evolution of the Congo deep-sea fan: A basin-wide view of the interaction between a giant submarine fan and a mature passive margin (ZaiAngo project) ArchiMer
Anka, Zahie; Seranne, Michel; Lopez, Michel; Scheck-wenderoth, Magdalena; Savoye, Bruno.
We have integrated the relatively unknown distal domains of the Lower Congo basin, where the main depocenters of the Congo submarine fan are located, with the better-constrained successions on the shelf and upper slope, through the analysis of thousands of km of 2D seismic reflection profiles off-shore the Congo-Angola passive margin. The basin architecture is depicted by two ca. 800-km-long regional cross sections through the northern (Congo) and southern (Angola) margin. A large unit deposited basinward of the Aptian salt limit is likely to be the abyssal-plain equivalent of the upper-Cretaceous carbonate shelf that characterized the first post-rift deposits in West-equatorial African margins. A latest-Turonian shelf-deepening event is recorded in the...
Tipo: Text Palavras-chave: Submarine fan; Lower Congo basin; Submarine canyon; Salt tectonics; Angola escarpment; West Africa Margin.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6634.pdf
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