″ Stratigraphic and Micropaleontologic Studies on some Upper Cretaceous-Lower Paleogene Successions at Farafra Oasis, Western Desert, Egypt ″

Abstract

The Upper Cretaceous-Lower Paleogene successions exposed in the study area at Farafra Oasis in Western Desert, have been studied in terms of foraminiferal distribution to figure out the biostratigraphical distribution and sedimentary environment of these successions. Two sections were measured, one at Naqb El-Farafra area, and the other to the south at the western scarp of Farafra Oasis which is El-Guss Abu Said plateau. The Eocene succession of El-Guss Abu Said consists of Esna Formation (shale) at the base, which is overlain by well-bedded alveoline marl (Nusf Formation) with occasional limestone ledges rich in Nummulites. Nusf Formation ends with varved-like thin beds of marl and limestone before it is truncated by a limestone unit of the Farafra Formation.