干旱区生态环境知识资源中心(Arid): Integration of space images and airborne radiometric data for discrimination of radioactive mineralizations at Wadi Araba area, North Eastern Desert, Egypt

Arid

DOI	10.1016/j.ejrs.2010.07.002
	Integration of space images and airborne radiometric data for discrimination of radioactive mineralizations at Wadi Araba area, North Eastern Desert, Egypt
	El-Sadek, M. A.; Mousa, M. I.
通讯作者	Mousa, MI
来源期刊	EGYPTIAN JOURNAL OF REMOTE SENSING AND SPACE SCIENCES
ISSN	1110-9823
EISSN	2090-2476
出版年	2010
卷号	13 期号:1 页码:11-19
英文摘要	This research aims at integrating airborne gamma-ray spectrometric and remote sensing satellite data to appointment radioactivity of the rocks at Wadi Araba, which is located in the North Eastern Desert of Egypt. Airborne gamma-ray spectrometric data of the ore as well as construction of lithological and structural maps from Landsat ETM+ image are used to achieve the present study. The processing of airborne gamma-ray spectrometric data covering the area produced maps that showed the distribution and intensities of (eU), (eTh) and (K-40%). These maps were correlated with lithologic and structural maps, which were interpreted from Landsat ETM+ image, to show the probably hosting zones of radioactive materials. This study is based on the differences of radiometric data, brightness Digital Number (DNs) values of the rocks, predominant trends and densities of the structural lineaments, shape and type of weathering products. The study area is divided into nine lithologic units according to the physical characteristic differences as well as gamma-ray spectrometer measurements to reveal the mineralized units and zones as well as the best conditions for exploration of radioactive materials. These studies recorded some uranium anomalies distributed along NE-SW trending fault zones. These occurrences are hosted in Rod El-Hamal, El Galala and Duwi Formations. The gamma-ray spectrometer measurements for some representative zones indicate the presence of eU up to 20 ppm in the northeast direction and exceeding more than 35 ppm along zones fault cutting G. El Galala El Bahariya and G. El Galala El Qibliya. The characteristic features responsible for the uranium mineralization are the high fracture density of the Rod El-Hamal, Sudr and Duwi Formations. These fractures acted as good channels for hydrothermal ascending fluids and/or the percolating meteoric water. The hematitization accompanied these zones leached uranium which is redeposited and adsorbed onto hematite especially at the sites of intersection of the main fractures. The study shows that integrated application of satellite remote sensing techniques and airborne processed data is a powerful tool in the exploration of radioactive materials. (C) 2010 National Authority for Remote Sensing and Space Sciences. Production and hosting by Elsevier B.V. All rights reserved.
英文关键词	Remote sensing Airborne radiometric data
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000216576400002
WOS类目	Environmental Sciences ; Remote Sensing
WOS研究方向	Environmental Sciences & Ecology ; Remote Sensing
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/329468
作者单位	[El-Sadek, M. A.; Mousa, M. I.] Nucl Mat Author, POB 530 Maadi, Cairo, Egypt
推荐引用方式 GB/T 7714	El-Sadek, M. A.,Mousa, M. I.. Integration of space images and airborne radiometric data for discrimination of radioactive mineralizations at Wadi Araba area, North Eastern Desert, Egypt[J],2010,13(1):11-19.
APA	El-Sadek, M. A.,&Mousa, M. I..(2010).Integration of space images and airborne radiometric data for discrimination of radioactive mineralizations at Wadi Araba area, North Eastern Desert, Egypt.EGYPTIAN JOURNAL OF REMOTE SENSING AND SPACE SCIENCES,13(1),11-19.
MLA	El-Sadek, M. A.,et al."Integration of space images and airborne radiometric data for discrimination of radioactive mineralizations at Wadi Araba area, North Eastern Desert, Egypt".EGYPTIAN JOURNAL OF REMOTE SENSING AND SPACE SCIENCES 13.1(2010):11-19.