February 2013

Alteration of σ3 field during the evolution of a polycyclic basement complex

  The polycyclic nature of the Migmatized gneiss basement complex of South-western Nigeria is depicted by several tectonic imprints oriented in different manner; such setting is characterized by temporal adjustment of the minimum stress field. Attitude (strike and dip), length, width, average perpendicular distance and aspect ratios were taken for foliations, joints, veins, intrusions and boudinages. These...

Author(s): Omosanya, K. O., Akinbodewa, E. A., Mosuro, G. O. and Kaigama, U.

February 2013

Interpretation of aeromagnetic anomalies and electrical resistivity mapping around Iwaraja area Southwestern Nigeria

  Aeromagnetic, ground magnetic and vertical electrical sounding (VES) methods were used to delineate the basement structures around Iwaraja area, southwestern Nigeria. In doing this, an aeromagnetic sheet 264 of the Geological Survey of Nigeria (GSN) and digitized aeromagnetic map from Nigeria Geological Survey Agency (NGSA, 2008) were interpreted. Also sixteen ground magnetic profiling were  carried out,...

Author(s): Adelusi A. O., Kayode J. S. and Akinlalu A. A.