TITLE:
An Interpretation of Structures from the Aeromagnetic Field over a Region in the Nigerian Younger Granite Province
AUTHORS:
J. Raimi, B. B. M. Dewu, P. Sule
KEYWORDS:
Aeromagnetic; Euler Deconvolution; Ring Complex; Lineaments; Folds
JOURNAL NAME:
International Journal of Geosciences,
Vol.5 No.3,
March
27,
2014
ABSTRACT: An
interpretation of high resolution aeromagnetic data was carried out to provide
new information about the study area. Located between latitude 10°30'N and 11°00'N and longitude 8°30'E and 9°00'E, the interpretation revealed
previously unknown folds and magnetic anomaly with a signature that is similar
to those associated with ring complexes in the study area but without the
surface manifestation that is associated with the complexes. Qualitatively
interpreted as unexposed ring complex, the magnetic anomaly is underlain by
cross-over of major lineaments; implying presence of weak zone that probably
allowed the volcanic eruption that initiated the emplacement of the source of
the anomaly. A depth that ranges from outcrop to 1200 m and from outcrop to
1800 m is respectively suggested for the unexposed ring complex and folds by
the Euler deconvolution results.