| Reference | {Deposit:: BRITISH SULPHUR CORP. LTD., 1980: WORLD SURVEY OF PHOSPHATE DEPOSITS, 4TH ED., LONDON}{Deposit:: SALVAN, H. 1960: LES PHOSPHATES DE CHAUX SEDIMENTAIRES DU MAROC. NOTES MAROCAINES; SOC. GEOGR. MAROC, NO.14, P.7-20, RABAT}{Deposit:: MOUNTASSIR, M. EL. 1977: LA ZONE RUBEFIEE DE SIDI DAOUI... THESIS, UNIVERSITY STRASBOURG}{Deposit:: BELFKIRA, O. 1980: EVOLUTIONS SEDIMENTOLOGIQUES ET GEOCHIMIQUES DE LA SERIE PHOSPHATEE DU MAESTRICHTIEN DES OULAD ABDOUN. THESIS, UNIVERSITY GRENOBLE}{Production:: INFORMATION OBTAINED DURING VISIT IN APRIL 1982} |