| Reference | {Deposit:: BRITISH SULPHUR CORP. LTD., 1980: WORLD SURVEY OF PHOSPHATE DEPOSITS, 4TH ED., LONDON}{Deposit:: OMARA, S., 1965: PHOSPHATIC DEPOSITS IN SYRIA AND SAFAGA DISTRICT, EGYPT. ECONOMIC GEOLOGY, VOL.60, P.214-227}{Deposit:: BURGGRAEF, W. & MUELLER, H.G., 1965: DIE PHOSPHATLAGERSTAETTE HAMRAWEIN IN DER ARABISCHEN WUESTE. ERZMETALL, VOL.XVIII, NO.10}{Deposit:: EL SAYED & EL TARABILI, 1969: PALEOGEOGRAPHY, PALEOECOLOGY....PHOSPHATIC SEDIMENTS IN THE QUSEIR SAFAGA AREA, VAR.- ECONOMIC GEOLOGY, VOL.64, P.172-182} |