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The Late Ordovician Glacial Record in the Subsurface of Northwest Saudi Arabia: Sedimentology and Glacial Sequence Stratigraphy of the Sarah, Qasim and Uqlah Formations

A.J. Rees1

1Saudi Aramco


This contribution establishes a preliminary framework for the interpretation and reservoir characterisation of Upper Ordovician pre-glacial (Quwarah Member), syn-glacial (Sarah Formation) and early post-glacial (Uqlah Formation) sediments in Northwest Saudi Arabia. The primary dataset is detailed core description of 15 wells augmented by wireline log correlation, FMI interpretation and glacial sequence stratigraphic principles.


AAPG Search and Discovery Article #90188 ©GEO-2014, 11th Middle East Geosciences Conference and Exhibition, 10-12 March 2014, Manama, Bahrain