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Near Surface Fractures Evidence from Audio-Magnetotelluric (AMT) Investigation in Ayos-Nguelemendouka Area (Eastern Cameroon)
School of Geology, Mining and Mineral Processing, University of Ngaoundéré, Ngaoundéré, Cameroun
Department of Physics, Advanced Teacher’s Training College, University of Yaoundé, Yaoundé, Cameroun
Department of Physics, Faculty of Science, University of Yaoundé, Yaoundé, Cameroun
Department of Physics, Faculty of Science, University of Yaoundé, Yaoundé, Cameroun
- 1 School of Geology, Mining and Mineral Processing, University of Ngaoundéré, Ngaoundéré, Cameroun
- 2 Department of Physics, Advanced Teacher’s Training College, University of Yaoundé, Yaoundé, Cameroun
- 3 Department of Physics, Faculty of Science, University of Yaoundé, Yaoundé, Cameroun
- 4 Department of Physics, Faculty of Science, University of Yaoundé, Yaoundé, Cameroun
International Journal of Geosciences·Volume 04 (2013)·Pages 480–493·Published 25 March 2013·DOI10.4236/ijg.2013.42045
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Abstract
The current study deals with an interpretation of audio-magnetotelluric (AMT) data collected in the Ayos/Nguelemen douka area, using a Stratagem EH4 unit. The study’s objective is to provide a better understanding of the area’s subsur face structure. Thus, AMT soundings were realised through seven profiles NE30° oriented, each profile made up of four stations. Data modelling highlights a SW-NE tectonic unevenness which seems to correlate with the Centre Cameroon Shear Zone. Moreover, this interpretation put into evidence an uplift of the basement at Lamba 2, a tabular structure at depth and an absence of discontinuities beneath 300 mdepth.
KeywordsAMT SoundingTectonic UnevennessStratificationUpliftDiscontinuities
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