الفهرس 
ARABIC SUMMARY
General StateaentOnly 14 pages are availabe for public view
 |  | from | 32 |  |  |
| | | from | 32 | | |
Abstract
In order to throw more light on the litho-and biostratigraphy of the Lower and upper Persian sequences in Upper Egypt, as well as to understand in details the evolution and history of sedimentation of the Lower Eocene carbonate basins, an area measuring about 1143 square km and lying in the Eastern Desert between Qena and Sohag was chosen for the present studies. Eight stratigraphic columnar sections were measured and sampled in detail and about 1000 thin sections as well as cut slabs were prepared to cover most of the carbonate varieties forming the studied sequence. Lithostratigraphically: The exposed Lower Eocene carbonate sequence in the studied area is subdivided into two rock units:
1) The Thebes Formation and (2) The Drunka Formation. The lateral and vertical relationships between these two units are demonstrated for the first time through detailed field and laboratory studies. Inter fingering and time counterpart are the relationships between the Thebes and the Drunka formations in the area under consideration. Biostratigraphically: The Lower Eocene carbonate sequence in the studied area can be subdivided into three algal and two larger foraminiferal bio zones.