Journal of Industrial Engineering Research, 1(4) July 2015, Pages: 136-149 IWNEST PUBLISHER Journal of Industrial Engineering Research (ISSN: 2077-4559) Journal home page: http://www.iwnest.com/AACE/ Corresponding Author: T.A. Adagunodo, Geophysics/Physics of the Solid Earth Section, Pure and Applied Physics, LAUTECH, Ogbomoso, Nigeria. E-mail: taadagunodo@yahoo.com Geomagnetic Signature Pattern of Industrial Layout Orile Igbon T.A. Adagunodo, L.A. Sunmonu and M.A. Adabanija Department of Pure and Applied Physics, Ladoke Akintola University of Technology, Ogbomoso. Nigeria. Geophysics/Physics of the Solid Earth Section, P/A Physics, LAUTECH, Ogbomoso, Nigeria. ARTICLE INFO ABSTRACT Article history: Received Accepted Available online Keywords: Analytic Signal, Basement Pattern, Geologic Features, Geomagnetic Analysis, Industrial Layout. Ground magnetic data at Industrial Layout Orile Igbon was analyzed with a view to determining the areas that are competent for the construction of factories and other related buildings (e.g. high-rise administrative buildings). The study area falls within latitude 08 0 13 ƍ 59.22 Ǝ to 08 0 15 ƍ 0 Ǝ North and longitude 004 0 17 ƍ 05.0 Ǝ to longitude 004 0 19 ƍ 01.1 Ǝ East of Southwestern Nigeria. The ground magnetic survey was carried out, the acquired data was processed and analyzed. The qualitative interpretation revealed features like faults, contact between two rocks and fracture zones. However, the quantitative interpretation gave the overburden thickness to the top of the magnetic basement rock as varied between 6.0 and 33.5 m. Interpretation of ground magnetic data revealed that Industrial Layout Orile Igbon comprise of zones underlain with thin as well as thick overburden. It is therefore advisable that people should not ignorantly built factories making use of heavy machines where there is thick overburden as it might lead to subsidence or total collapse in the future. This could occur when the vibration of these heavy machines is transferred to the subsurface which might lead to ground motion which later has effect on the factory’s foundation. © 2015 IWNEST Publisher All rights reserved. To Cite This Article: T.A. Adagunodo, L.A. Sunmonu and M.A. Adabanija., Geomagnetic Signature Pattern of Industrial Layout Orile Igbon. J. Ind. Eng. Res., 1(4), 136-149, 2015 INTRODUCTION The earth subsurface has been of great concern to geoscientists, who seek to investigate it using diverse means, some for the purpose of having knowledge about the terrain they are, others do it for exploration of economic resources such as minerals and hydrocarbons which lie concealed beneath the earth surface, some for engineering investigation, while some for archaeological studies. The presence and magnitude of these anomalies in the subsurface can only be ascertained by geophysical investigations of the subsurface geologic structures in the study area. Geophysical methods may be applied to a wide range of investigations from studies of the entire Earth to exploration of a localized region of the upper crust for engineering or other purposes [15]. A wide range of geophysical methods exist, for each there is an operative physical property to which the method is sensitive. The type of physical property to which a method responds clearly determines its range of application. Thus, for instance, magnetic method very suitable for locating buried magnetic ore bodies, because of their magnetic susceptibility. Similarly, seismic and electrical methods are suitable for locating water table, because saturated rock may be distinguished from dry rock by its higher seismic velocity and higher electrical conductivity [11]. Geophysical methods are capable of detecting and delineating local features of potential interest. Geophysical methods for detecting discontinuities, faults, joints and other basement structures include the following: magnetics, seismic, electrical resistivity, potential field, well logging, gravity, radiometric, thermal and so on [10]. Some geophysical methods such as gamma-ray spectrometry and remote sensing measure surface attributes; others, such as thermal and some electrical methods are limited to detecting relatively shallow subsurface geological features. Geophysical modeling provides generalized and no-unique solution to questions concerning the geometry of the subsurface geologic structures [8,21]. The magnetic method is one of the various techniques used in geophysical surveys. The magnetic survey method measures variations in the earth’s magnetic field to determine the location of subsurface features. It also helps to delineate the displacement fractures, joints or in general the linear features for example competent areas deals with magnetic highs and areas of magnetic lows have weak zones like cracks, joints, and fractures etc.