干旱区生态环境知识资源中心(Arid): Interpretation of aerospectrometric, aeromagnetic and geochemical data, Um-Alhuweitat basin area, Central Eastern Desert, Egypt

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DOI	10.1016/j.apradiso.2020.109477
	Interpretation of aerospectrometric, aeromagnetic and geochemical data, Um-Alhuweitat basin area, Central Eastern Desert, Egypt
	El Ghrabawy, Osama; Ismail, Atef; Metwaly, Mohamed; Mostafa, Ali Mohamed
通讯作者	Mostafa, AM (corresponding author), Nucl Mat Author, POB 530, Cairo, Egypt.
来源期刊	APPLIED RADIATION AND ISOTOPES
ISSN	0969-8043
EISSN	1872-9800
出版年	2021
卷号	170
英文摘要	This study presents the analysis of airborne gamma-ray spectrometry and aeromagnetic data to delineate the distribution of the radioactive elements and determine their anomalous zones, subsurface structures controlled mineralized zones, and 3D magnetic inversion to give a full view of basement relief. According to statistical treatment of airborne gamma-ray spectrometry measurements, the highest values of potassium and equivalent thorium associated with Nakhiel Formation are 3.2% and 12.8 ppm respectively. Meanwhile, the equivalent uranium associated with phosphate beds attains 19.1 ppm. The spatial distribution of the relatively high concentrations of eU, eU/K and eU/eTh are recorded in adjacent areas in Upper Cretaceous deposits as > 12, 25 ppm and 5 ppm for eU, eU/K and eU/eTh, respectively. According to field measurements, the highest values of eU associated with phosphate beds and black Shale are 117 ppm and 20 ppm respectively. Meanwhile, the highest value of potassium associated with Quaternary sediments is 2.9%. Moreover, the highest value of eTh associated with Taref Formation is 16.2 ppm. The geochemical studies of collected samples from the anomalous zones showed the presence of secondary uranium in addition to rare earth elements. Meanwhile, the black shale trace elements are measured and showed high concentrations of tungsten. The magnetic data analysis is performed using tilt derivative and 3D magnetic modeling methods. Most of the deduced structures are trending in NW-SE, and NE-SW directions. The depths to the basement rocks are ranged from 0.475 km to 1.07 km below the ground surface.
英文关键词	Airborne gamma ray spectrometry Aeromagnetic Geochemical 3D-modeling
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000637950400003
WOS类目	Chemistry, Inorganic & Nuclear ; Nuclear Science & Technology ; Radiology, Nuclear Medicine & Medical Imaging
WOS研究方向	Chemistry ; Nuclear Science & Technology ; Radiology, Nuclear Medicine & Medical Imaging
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349494
作者单位	[El Ghrabawy, Osama; Ismail, Atef; Metwaly, Mohamed; Mostafa, Ali Mohamed] Nucl Mat Author, POB 530, Cairo, Egypt
推荐引用方式 GB/T 7714	El Ghrabawy, Osama,Ismail, Atef,Metwaly, Mohamed,et al. Interpretation of aerospectrometric, aeromagnetic and geochemical data, Um-Alhuweitat basin area, Central Eastern Desert, Egypt[J],2021,170.
APA	El Ghrabawy, Osama,Ismail, Atef,Metwaly, Mohamed,&Mostafa, Ali Mohamed.(2021).Interpretation of aerospectrometric, aeromagnetic and geochemical data, Um-Alhuweitat basin area, Central Eastern Desert, Egypt.APPLIED RADIATION AND ISOTOPES,170.
MLA	El Ghrabawy, Osama,et al."Interpretation of aerospectrometric, aeromagnetic and geochemical data, Um-Alhuweitat basin area, Central Eastern Desert, Egypt".APPLIED RADIATION AND ISOTOPES 170(2021).