Nuclear Materials Authority,El-Maadi,P.O.Box 530,Cairo,Egypt
Geology Department,Faculty of Science,Port Said University,Port Said 42522,Egypt
Geological Sciences Department,National Research Centre,Cairo,Egypt
Environmental Sciences Department,Faculty of Science,Port Said University,Port Said 42522,Egypt
Geology Department,Faculty of Science,Al-Azhar University,P.O.Box 11884,Cairo,Egypt
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