Reconstruction and appraisal of Akunu–Akoko area iron ore deposits using geological and magnetic approaches

• Main Authors: Okpoli Cyril, Akingboye Adedibu
• Format: Article
• Language: English
• Published: Sciendo 2016-06-01
• Series: Materials and Geoenvironment
• Subjects: magnetic method; geological mapping; quantitative interpretation; akunu; nigeria
• Online Access: https://doi.org/10.1515/rmzmag-2016-0003

Geological mapping and magnetic methods were applied for the exploration of iron ore deposits in the Akunu–Akoko area of Southwestern Nigeria for the purpose of evaluating their geological characteristics and resource potentials. A proton magnetometer measures the vertical, horizontal and total magnetic intensities in gammas. The subsurface geology was interpreted qualitatively and quantitatively. The downward continuations and second vertical derivatives, the small-sized mineralised bodies and shallow features in the study area were mapped. The faults are trending in the following directions: NE–SW, NW–SE, N–S and E–W groups, while the iron ore mineralisation is structurally controlled by two major groups of fault trends, namely, the NE–SW and NW–SE; the N–S and E–W groups are mere occurrences that do not contribute to the structural control of the iron ore mineralisation in Akunu.