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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 21, No. 6, 2017, pp. 1047-1050
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Bioline Code: ja17123
Full paper language: English
Document type: Research Article
Document available free of charge
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Journal of Applied Sciences and Environmental Management, Vol. 21, No. 6, 2017, pp. 1047-1050
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Geophysical Identification of Hydrothermally Altered Structures That Favour Gold Mineralisation.
OHIOMA, J.O; ADEGBITE, J. T & EHILENBOADIAYE, J.I
Abstract
This research study uses geophysical method (aeromagnetic) to identify hydrothermally altered
structures which favour the inflow of hydrothermal fluid that usually brings about gold mineralisation in Egbe-Isanlu
Schist Belt Area, North Central Nigeria. The application of data enhancement filtering algorithm such as reduction to
the pole to the magnetic data aided in mapping of various hydrothermally altered structures that may favour gold
mineralisation. The interpretation of the aero data set has enhanced a lot of hydrothermally altered structures that trend
northeast-southwest(NE-SW). A number of hydrothermally altered structures are seen. Therefore the areas that are
hydrothermally altered are potential sites for gold mineralisation, most importantly those areas that lie within or adjacent
to major faults around Odogbe and Okolom in the North Central portion of the study area. Similarly, regions around
Egbe in the western edge are suspected to be mineralized zones. The results obtained in this research study demonstrated
that the geophysical tools adopted are powerful and effective means for gold mineral exploration. This method is unique
because it is non-invasive which prevented any environmental degradation and it enhances the coverage of very large
area.
Keywords
Aeromagnetic Data; Isanlu; Structures; Gold Mineralisation; Hydrothermally Altered.
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© Copyright 2017 - Journal of Applied Sciences and Environmental Management
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