_applied sciences_  
_Article_  
Neutron Activation Analysis for Geochemical Characterization of Rocks from Gold Mines in Egypt  
[PERSON] 1,2,*, [PERSON] 3, [PERSON] 2, [PERSON] 2, [PERSON] 4, [PERSON] 3, [PERSON] 2, [PERSON] 1 and [PERSON] 3,5,*(c)  
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other investigation locations of the CED. The Hamash gold mine area (HGMA) is located 100 km west of Marsa Alam on the Red Sea coast and 40 km south of the line linking Marsa Alam and Edfu cities. The previous integrated work of Sukari Gold Mine (SGM) focused on remote sensing data along with geochemical and isotopic analyses to assess the environmental impacts of (the SGM) observations mining process [9].  
Since ancient times, the Egyptian Eastern Desert has been renowned as a gold mining location. More than 90 old gold mines are distributed across the region, with the largest in its central and southern areas [4; 10; 11; 12; 13; 14; 15; 16]. Few studies have been conducted to extract information on the genesis and sort of gold mineralization and geochemical characterization, as reported by [PERSON], [PERSON], and [PERSON] [10]. The authors determined the mass fractions of thirty-four elements, and the average value of gold was determined to be 0.74 ppm. Furthermore, the researchers found that the presence of granites and quartz veins at the Hamash mine, which is N.W. and N.S. host trending, is related to the presence of gold.  
The samples from the investigated areas (Sukari, Hamash, and Um Hagalig) were examined in terms of their geochemistry using neutron activation analysis. Neutron activation analysis (NAA) differs from other analytical methods in its precision, accuracy, sensitivity, and nondestructive analysis technique. More details about NAA were published elsewhere [17; 18; 19; 20; 21; 22; 23].  
The main objectives of the present work can be summarized as; (i) determining the elemental composition of the studied granitoid rock samples (abundances and correlation), (ii) studying the provenance of the granitoid rocks based on the obtained geochemical data using ratio indicators, and discrimination diagrams and (iii) calculating the enrichment factors as integrative factors highlighting the significant elements' enrichment and the geo-accumulation index as well.