Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item:

Authors: Assran, A. S. M.*
Title: Application of ground magnetic and multi-frequency EM techniques for the Abu-Shihat radioactive prospect area, North Eastern Desert,Egypt
Issue Date: 2002
Series/Report no.: 45 (5)
Keywords: magnetic
analytic signal
wavelength filter
multi--frequency EM
geological mapping
Abstract: Land magnetic and electromagnetic data enhancement procedures were employed to follow the extensions of the observed anomalies on the surface downwards in the deeper levels and to recognize any possible relations between the localization of uranium mineralization and both the structural and geologic settings.This study revealed that the Analytic Signal (AS)and high pass and low pass filtering approaches significantly improve the interpretability of the measured magnetic data in discriminating the shallow and deep magnetic sources within the Abu-Shihat prospect area.Furthermore,the EM survey using varying frequencies,coil separations and station separations was performed in the considered area with the horizontal-loop EM equipment.The interpretation of the horizontal-loop EM data indicated the presence of some conductive zones.These zones are mainly associated with felsite and pegmatite dykes,as well as alteration and fault zones.The target parameters such as the location,width, depth,dip and conductivity thickness were estimated for each conductive zone.Combining the ground magnetic and horizontal-loop EM surveys with the geological and structural mapping revealed that the mineralizations are concentrated in the eastern and western parts of the study area,and these techniques are considered as valuable exploration tools for uranium associated sulfide mineralization.
Appears in Collections:04.05.08. Instruments and techniques
04.05.05. Main geomagnetic field
Annals of Geophysics

Files in This Item:

File SizeFormatVisibility
609_620 Assran.pdf644.68 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Share this record




Stumble it!



Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA