Nwojiji C.N.

Department of Geology and Exploration Geophysics, Ebonyi State University, Abakaliki, Nigeria

Osterloff P.

Geological Services Team, Shell Petroleum Development Company (SPDC), Warri, Nigeria

Okoro A. U

Department of Geological Sciences, Nnamdi Azikiwe University, Awka, Nigeria

Ukeri P. O

Geological Services Team, Shell Petroleum Development Company (SPDC), Warri, Nigeria