الفهرس | Only 14 pages are availabe for public view |
Abstract Airborne is a powerful geophysical technique available to the earth scientists for investigating vast areas rapidly. The most important physical parameters that measured from the airborne are magnetic susceptibility, density contrast, radioactivity variation, and electromagnetic waves. Any change in the earth’s near-surface that causes a measurable change in these parameters presents a potential application for airborne geophysics. The study deals with airborne radioactivity and magnetic methods. The gamma-ray spectrometry method works in different fields. Initially developed as Uranium exploration tool, the application of the method now include geological mapping (Graham, and Bonham-carter, 1993; and charbonneau et al., 1997), mineral exploration (Lo and Pitcher, 1996; Grasty and Shives, 1997), soil mapping (Cook et al., 1996 and Wilford et al., 1997), and environmental radiation monitoring (Sanderson et al., 1995; and Ford et al., 2001). Wilford et al. (1997) demonstrated that airborne gamma-ray spectrometry patterns provided valuable information for soil, regolith, and geomorphology studies used for land management and mineral exploration.Aeromagnetic data deal with a wide range of applications and geological fields including lithological contacts tracing (geological mapping) to locate different structural lineaments (faults, folds, dykes and shear zones). It is an essential tool for studying and following shallow and deep features that originated from a series of changes in lithology (Sharma, 1997). |