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Article citations


Rapolla, A., Cella, F. and Dorre, A.S. (1995) Gravity Study of the Crustal Structures of Somalia along International Lithosphere Program Geotransects. Journal of African Earth Sciences, 20, 263-274.

has been cited by the following article:

  • TITLE: Topography of the Moho Undulation in Cameroon from Gravity Data: Preliminary Insights into the Origin, the Age and the Structure of the Crust and the Upper Mantle across Cameroon and Adjacent Areas

    AUTHORS: Albert Eyike, Françoise Enyegue A. Nyam, Charles Antoine Basseka

    KEYWORDS: Crustal Instabilities, Gravity Anomaly, Moho Undulations, Cameroon

    JOURNAL NAME: Open Journal of Geology, Vol.8 No.1, January 30, 2018

    ABSTRACT: In this paper, the complete Bouguer anomaly data from Cameroon and part of the neighboring countries has been examined to compute the topography of the Moho undulations. This work is based on an improved filtering technique and an appropriate density contrast between the crust and the upper mantle. Comparison with seismic data shows that our Moho map defines better the continuity and morphology of the crust-mantle interface than the scattered seismic data in Cameroon. The present relief map, although may not give real depths at some areas provides a better surface correlation with the surface geology better than seismic techniques. Comparison between the Moho undulations and the topography maps reveals that the crust in Cameroon seems to not be in isostatic equilibrium. The Moho in the Central African Shear Zone (CASZ) must be linked with different dextral movements during the opening of the south Atlantic in the Cretaceous time. In the Chad basin, the Moho is associated to the opening of the central and south Atlantic ~130 Ma. In the case of the Congo basin, the Moho undulations are related to the post rift subsidence. The correlation between the Moho undulations map with the surface geology indicates that the actual morphology of the crust mantle interface in Cameroon can be related to the build-up of the West and Central African rift system dating back to the Early Cretaceous to Palaeogene, where the presence of intraplate tensional stresses reactivated previous shear zones of lithospheric weakness during the break up of Gondwana.