Columbia subject headings:
Harvard subject headings:
Arabian-Nubian Shield.
Geology, Stratigraphic--Proterozoic
Geology--Africa, Northeast.
Geology--Egypt
Ophiolites.
Orogenic belts--Africa, Northeast.
Orogenic belts--Egypt.
Orogeny--Africa, Northeast.
Princeton subject headings:
Geology, Stratigraphic--Precambrian.
Geology--Africa, Northeast.
Ophiolites.
Orogeny--Africa, Northeast.