Nuclear Materials Authority;
P.O.530.El Maadi;
Cairo;
Egypt;
Department of Geology;
New Brunswick University;
UNB;
Canada;
Microscopy and Microanalysis Facility;
New Brunswick University;
UNB;
Canada;
uranium; thorium; zircon; columbite-tantalite; fluorite; monazite; xenotime; age dating; granitic gneisses; South Eastern Desert; Egypt;