Morphogenesis of Congo submarine canyon and valley: implications about the theories of the canyons formation
- 1 August 2004
- journal article
- Published by Taylor & Francis in Geodinamica Acta
- Vol. 17 (4)
- https://doi.org/10.3166/ga.17.241-251
Abstract
The bottom and edges of the Congo submarine canyon are made of deposits which show morphologies of superposed terraces associated with lense side slope. Using 3D seismic, 3.5 kHz acoustic profiles and core datas, these geometries are interpreted as being mainly the result of the polyphase processes due to the activity of turbidity currents. All the turbidite deposits located below the canyon floor and the actual Congo fan belong to a unique depositional sequence which begun at the early Pliocene. Probably, this sequence has been initiated by an important uplift of the West Africa margin.Keywords
This publication has 16 references indexed in Scilit:
- Direct observation of intense turbidity current activity in the Zaire submarine valley at 4000 m water depthMarine Geology, 2003
- Morphology and architecture of the present canyon and channel system of the Zaire deep-sea fanMarine and Petroleum Geology, 2002
- Superposed deformation straddling the continental-oceanic transition in deep-water AngolaMarine and Petroleum Geology, 2000
- Evolution of the Angolan passive margin, West Africa, with emphasis on post-salt structural stylesPublished by Wiley ,2000
- Morphology and recent evolution of the Zaire turbidite system (Gulf of Guinea)GSA Bulletin, 1996
- Structural and sedimentary geology of the Congo and Southern Gabon continental shelf; a seismic and acoustic reflection surveyNetherlands Journal of Sea Research, 1984
- Dispersal of Zaire river suspended matter in the estuary and the Angola BasinNetherlands Journal of Sea Research, 1984
- La succession des sédiments dans les bassins marins et continentaux du Congo depuis le début du MésozoïqueSciences Géologiques, Bulletins Et Mémoires, 1982
- The Zaire river and estuary and the Zaire outflow in the Atlantic OceanNetherlands Journal of Sea Research, 1978
- On the land slopes separating continents and ocean basins, especially those on the west coast of AfricaScottish Geographical Magazine, 1887