Biostratigraphie und fazielle Entwicklung in der Oberkreide und im Alttertiär im Bereich der Kharga Schwelle, Westliche Wüste, SW-Ägypten.

Abstract

The marine Late Campanian to Late Paleocene sedimentary sequences of the Kharga Uplift and the adjacent Dakhla Basin (W) and Asyut Basin (E) are investigated and correlated in respect to their bio- and lithofacial development. Their biostratigraphy and paleobathymetry/ paleoecology are deduced from their foraminiferal content. The benthonic foraminifers occur in the investigated area in many associations, they are characterize different facies types of the shelf. These associations are part of the "Midwaytype fauna" or very rarely the associations occur in a shallow marine enviroment of the shelf which is not part of the "Midway-type fauna". The observed sea-level changes are correlated on a regional scale (Egypt) and compared to the eustatic development. The results of this comparison as well as changes in the local subsidence pattern are used to reconstruct the tectonic development of the intracratonal Kharga Uplift.