Scientific publications
2021OtherEnglish
Seismic Stratigraphy and Deep Structure of the Kribi Basin (Cameroon Atlantic Margin) (opens in a new tab)
Authors
University of Yaoundé I
M. Lionel
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Scientific publications
M. Lionel
P. Nguema
A. Ribodetti
Summary The Kribi basin is one of a series of geotectonic elements formed as a result of Early Mesozoic crustal separation of Africa and South America continents. This study is focused on detailed analysis of selected lines of a regional 2D multichannel seismic program, CameroonSpan seismic survey designed to provide insights regarding total sediment thickness and basement structure of the North Equatorial Atlantic margin. The program consists of 5-km grid seismic profiles covering the offshore areas of CampoKribi and Douala. The interpreted seismic unconformities and their correlative conformities are defined according to well log formation top, ages dating of magmatic episodes of the central Africa corridor and published lthostractigraphic scheme South Atlantic margin basins. The results show thatthe sedimentary succession of the study area may include deep-seated evaporitic section associated with local compressional salt domes of up to 5000m high piercing the Mid-Jurassic to Late Albian karstified and shelf margin wedge sequence. Seismic patterns indicated that the mother salt layer extend over the basin and is located at the base of depict sedimentary succession. The salt structures of the Kribi offshore basin are allochthonous. This observation supports the idea of the existence of early rift salt section the Kribi Basin.