acknowledgement
contents
list of tables
list of figures
list of plates
introduction
general statement
soop of the present work
the upper oretageous-lower eocene rocks
the classification of the upper cretaceous -lower eocence rocks
the duwi formation
the post lower eocene-pre pliopleistocene deposits
introduction
the laoustrine origin
petrography and mineralogy
petrography
mineralogy
anew approach to the classifioation of phorites
classifioation of phosphorites-a review
modal analysis
the problem of grain size analysis of phosphorites
thin-section grain size analysis of phosphorites
grain-size parameters of the qena phosphorites
petrography and its implication on the sedimentary environments
miorofaoies associations
lateral petrographic vatiations and sedimentologioal imlications
geachemistry of some major and trace elements
geochemioal characteristion of the major elements
geochemioal characteristions of the trace elements
summary and conclusion
references
appendix
arabic summary
الفهرس 
