GEOLOGICAL MAPPING OF TEGINA AND ENVIRONS NORTH-CENTRAL NIGERIA

Abstract

Tegina and environs is situated within the north-central part of Nigeria. Geological mapping of
Tegina and environs was carried out to produce a geological and structural map of the area with
a view of updating the existing information on the geology of Nigeria. Lithologies mapped
include migmatite-gneiss, schist and medium to coarse-grained granite. The dominant lithology
in the area is schist covering more than 50% of the total area. Structures observed in the area are
joints, veins, dykes, foliations, faults and folds and are mostly observed on the migmatite-gneiss
and granitic rocks only. The NE-SW structures dominate, with minor trends of structures in the
NW-SE and E-W directions. The flows of streams in the study area were structurally controlled.
From field evidences, the geological and structural map of the area was produced.