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Title: Stratigraphic modelling of carbonate platform-to-basin sediments (Maastrichtian to Paleocene) in the Eastern Desert, Egypt
Authors: Scheibner, C ×
Kuss, J
Speijer, Robert #
Issue Date: 2003
Publisher: Elsevier
Series Title: Palaeogeography, Palaeoclimatology, Palaeoecology vol:200 issue:1-4 pages:163-185
Abstract: In the Galala Mountains of the Eastern Desert, Egypt, carbonate platform and basin deposits have excellent
exposure. These exposures show a late Campanian^early Paleocene rimmed platform evolving into a late Paleocene
distally steepened ramp. We modelled the evolution of the platform^basin transition from the Maastrichtian to
Selandian (68.7^59 Ma) with the 2-D stratigraphic simulation program PHIL and compared the modelled results with outcrop sections. Stratigraphic, facies, and environmental data are summarized and operate as input and control parameters for the computer simulation. The most important parameters that control the depositional geometries of the late Cretaceous mixed carbonate siliciclastic platform and the Paleogene carbonate platform are changes in relative sea level, sediment flux and initial topography. The simulation provides an understanding of platform growth and slope to basin deposition, particularly in areas of the platform that are poorly exposed or have been eroded. Moreover, the simulated geologic parameters like lithology, overall thickness and palaeowater depth closely resemble field and laboratory measurements of the individual sections. In an earlier study, the Maastrichtian slope angle was calculated to be 5^8‡ and this was confirmed in this study. In this earlier study also the timing of the transition from a rimmed platform to a distally steepened ramp was established to be during latest Maastrichtian-early Paleocene. The present study shows that the rimmed platform persisted at least until the late Paleocene (59 Ma), as indicated by the relatively high slope angle of 6.
ISSN: 0031-0182
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Geology
× corresponding author
# (joint) last author

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