Utilization of airborne gamma ray spectrometric data for geological mapping, radioactive mineral exploration and environmental monitoring of southeastern Aswan city, South Eastern Desert, Egypt

Youssef, Mohamed Ahmed; Elkhodary, Shadia T.

doi:10.1093/gji/ggt375

Cited by 45 publications

(10 citation statements)

References 4 publications

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“…Several case studies were conducted in the terms of remapping lithological units by using this technique; (e.g. EI-Meliegy et al 2000;El-Sadek et al 2002;Elawadi et al 2004;Nigm and Khameis, 2009;Youssef and Elkhodary, 2013;Patra et al 2016). In addition, it is helpful in deducing some structures that may not be recognized through analyzing potential field methods.…”

Section: Introductionmentioning

confidence: 99%

Delineation potential gold mineralization zones in a part of Central Eastern Desert, Egypt using Airborne Magnetic and Radiometric data

Elkhateeb

Abdellatif

2018

NRIAG Journal of Astronomy and Geophysics

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A B S T R A C TLocalization of probable gold mineralization zones in a selected part of the central Eastern Desert of Egypt has been executed by mapping lithology, structures and hydrothermal alteration zones. In this regard, both aeromagnetic and aeroradiometric data have been utilized in the analysis; by making use of some enhancement techniques such as first vertical derivative, analytic signal and both Center for Exploration Targeting (CET) grid and porphyry. Also, ratio and ternary radiometric maps have been launched to aid in the interpretation process.The results indicated that the study area is dominant by NW, NNW, NNE, WNW, NE, E-W and N-S structural directions. The NW-SE was the most important one and considered as the preferred orientation of ore deposits. Favorable regions of ore deposits were mapped and correlated well with known gold occurrences in the study area beside predicting new zones of mineralization. Analysis of aeroradiometric maps facilitates the correlation and delineation of lithological units based on the concentration of radioelements and ratios. Also, A number of hydrothermal alteration zones were mapped within younger granite, Hammamat felsites and Metasediments. Finally, A composite map consists of geology, structures and hydrothermal altered zones was generated using ArcGIS. Eight known locations of gold mineralization were investigated on this map and also new sites were suggested to be favorable locations for mineralization emplacement.

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Section: Introductionmentioning

confidence: 99%

Delineation potential gold mineralization zones in a part of Central Eastern Desert, Egypt using Airborne Magnetic and Radiometric data

Elkhateeb

Abdellatif

2018

NRIAG Journal of Astronomy and Geophysics

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“…Prototypical tests using an unmanned helicopter have been reported but are not widespread, partly because of high cost (∼1M USD) and large size (3.63 m long; 94 kg weight) of the helicopter necessary to carry a bulky detector systems [4,5]. We also note that, aerial gamma ray imaging and spectroscopy are also necessary in the field of homeland security and geological research, from mining and hydrocarbon exploration to the construction industry [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

First demonstration of aerial gamma-ray imaging using drone for prompt radiation survey in Fukushima

et al. 2017

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A: Considerable amounts of radioactive substances (mainly 137 Cs and 134 Cs) were released into the environment after the Japanese nuclear disaster in 2011. Some restrictions on residence areas were lifted in April 2017, owing to the successive and effective decontamination operations. However, the distribution of radioactive substances in vast areas of mountain, forest and satoyama close to the city is still unknown; thus, decontamination operations in such areas are being hampered. In this paper, we report on the first aerial gamma-ray imaging of a schoolyard in Fukushima using a drone that carries a high sensitivity Compton camera. We show that the distribution of 137 Cs in regions with a diameter of several tens to a hundred meters can be imaged with a typical resolution of 2-5 m within a 10-20 min flights duration. The aerial gamma-ray images taken 10 m and 20 m above the ground are qualitatively consistent with a dose map reconstructed from the ground-based measurements using a survey meter. Although further quantification is needed for the distance and air-absorption corrections to derive in situ dose map, such an aerial drone system can reduce measurement time by a factor of ten and is suitable for place where ground-based measurement are difficult. K: Dosimetry concepts and apparatus; Photon detectors for UV, visible and IR photons (solid-state) (PIN diodes, APDs, Si-PMTs, G-APDs, CCDs, EBCCDs, EMCCDs etc); Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators) 1Corresponding author.

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“…Apart from remote sensing data, processing of geophysical data contributes assuredly to minerals exploration through their different geophysical components (gravimetric, magnetometric, electrical, electromagnetic and natural gamma spectrometric methods) [19][20][21][22][23][24]. The natural gamma-ray spectrometric method has been widely and successfully used in mineral exploration and identification of alteration zones [20,21,[25][26][27][28][29][30]. However, few studies have been tested the application of this method in conjunction with the open accessible free satellite images.…”

Section: Introductionmentioning

confidence: 99%

Mapping of Hydrothermal Alteration Zones in the Kelâat M’Gouna Region Using Airborne Gamma-Ray Spectrometry and Remote Sensing Data: Mining Implications (Eastern Anti-Atlas, Morocco)

et al. 2022

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The mapping of hydrothermal alteration zones associated with mineralization is of paramount importance in searching for metal deposits. For this purpose, targeting alteration zones by analyzing airborne geophysical and satellite imagery provides accurate and reliable results. In the Kelâat M’Gouna inlier, located in the Saghro Massif of the Moroccan Anti Atlas, natural gamma-ray spectrometry and ASTER satellite data were used to map hydrothermal alteration zones. Natural gamma-ray spectrometry data were processed to produce maps of Potassium (K in %), Uranium (eU in ppm), Thorium (eTh in ppm) and ratios of K/eTh and K/eU. In addition, four-band ratios were computed, on ASTER data, to map the distribution of clay minerals, phyllitic minerals, propylitic minerals, and iron oxides. The combined results obtained from geophysical and satellite data were further exploited by fuzzy logic modelling using the Geographic Information System (GIS) to generate a mineral prospectivity map. Seven hydrothermal alteration zones likely to be favorable for mineralization have been identified. They show a spatial correlation with (i) known surface prospects and mineral occurrences, (ii) the granite-encasing contact zone, and (iii) the fault zones (Sidi Flah and Tagmout faults). This research therefore provides important information on the prospecting of mineral potential in the study area.

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Utilization of airborne gamma ray spectrometric data for geological mapping, radioactive mineral exploration and environmental monitoring of southeastern Aswan city, South Eastern Desert, Egypt

Cited by 45 publications

References 4 publications

Delineation potential gold mineralization zones in a part of Central Eastern Desert, Egypt using Airborne Magnetic and Radiometric data

Delineation potential gold mineralization zones in a part of Central Eastern Desert, Egypt using Airborne Magnetic and Radiometric data

First demonstration of aerial gamma-ray imaging using drone for prompt radiation survey in Fukushima

Mapping of Hydrothermal Alteration Zones in the Kelâat M’Gouna Region Using Airborne Gamma-Ray Spectrometry and Remote Sensing Data: Mining Implications (Eastern Anti-Atlas, Morocco)

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