Preliminary comparison of six late- to post-pan-african molasse basins, E. desert, Egypt

Author(s)
A. H.N. Rice, A. F. Osman, M. M. Abdeen, M. F. Sadek, A. I. Ragab
Abstract

This paper compares data from six molasse (?Hammamat) basins in the Eastern Desert of Egypt. This shows that although there are a set of common features, complete uniformity is absent. Molasse sedimentation was pre- and post-pink Younger Granite emplacement, post-Dokhan Volcanism and pre- to post-‘post-Hammamat’ felsite intrusion/extrusion. Later mafic to intermediate alkaline dyke and sill emplacement occurred. Deformation, sometimes strike-slip, occurred from pre-felsite to post-mafic/intermediate dyke emplacement. The strike-slip deformation can be interpreted as syn- and antithetic shears on the Najd Fault system, but despite this Najd Faulting is not proposed as the fundamental cause of basin formation. This is thought to have been typical late orogenic extensional collapse.

Organisation(s)
Department of Geology
External organisation(s)
Ain Shams University, Egyptian Geological Survey
Pages
41-45
No. of pages
5
DOI
https://doi.org/10.1201/9780203753392
Publication date
01-2017
Peer reviewed
Yes
Austrian Fields of Science 2012
105124 Tectonics
ASJC Scopus subject areas
General Earth and Planetary Sciences
Portal url
https://ucrisportal.univie.ac.at/en/publications/cb18873c-5a48-4eb4-a3f2-4db53f38adbd