December 2013

Seismic refraction study of Gurara dam phase II, northwestern Nigeria

Seismic refraction study has been carried out on Gurara Dam Phase II proposed axis with the aim of determining its feasibility for the founding of a dam. The field techniques involved off-end/reverse and split spread shootings on five profiles. The study site is situated on the Precambrian Crystalline Basement Complex rocks of North Central Nigeria. Velocity values obtained from the shots vary between 183 ms-1 in...

Author(s): Oladapo Michael Ilesanmi, Adeoye Oladapo, Oluwakemi Olanike, Adebobuyi Foluwaso Steve, Badejo Oluseun and Ifarajimi William

December 2013

Structural controls of Pb-Zn mineralization of Enyigba district, Abakaliki, Southeastern Nigeria

The lead-zinc deposit of Enyigba and its environs are localized in the cretaceous sedimentary rocks of the Albian Asu River Group in the Lower Benue Trough, Southeastern Nigeria. The Albian Asu River Group is made up of shale, siltstone, sandstone and limestone. The deposits were formed epigenetically through the crystallization of hydrothermal solutions and are localized within the fractures, hence the need to study...

Author(s): Obarezi J. E. and Nwosu J. I.