OPARA A.I.

Department of Geosciences, Federal University of Technology, PMB 1526, Owerri Imo state, Nigeria

UDOETE R. L.

Department of Geosciences, Federal University of Technology, PMB 1526, Owerri Imo state, Nigeria

EMBERGA T.T.

Department of Physics/Industrial Physics, Federal Polytechnic Nekede, Owerri

ECHETAMA H.N.

Department of Geosciences, Federal University of Technology, PMB 1526, Owerri Imo state, Nigeria

UGWUEGBU I.E.

Department of Geosciences, Federal University of Technology, PMB 1526, Owerri Imo state, Nigeria

NWOKOCHA K.C.

Department of Geosciences, Federal University of Technology, PMB 1526, Owerri Imo state, Nigeria

IJEOMA K.C.

Department of Geosciences, Federal University of Technology, PMB 1526, Owerri Imo state, Nigeria

CHINAKA J.C.

Department of Physics, Imo State University, Owerri

ONYEMA J.C

Department of Physics, Imo State University, Owerri