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Seismic Examples of Tunnel Valleys from the LAte Ordovician Glaciation in North AfricaNormal access

Authors: T. G. Parsons, R. J. Dixon, J. P. P. Hirst and B. Taylor
Event name: 71st EAGE Conference and Exhibition - Workshops and Fieldtrips
Session: WS 5: Buried Glacial Valleys and Recent Advances in Understanding Goundwater and Hydrocarbon Reservoirs
Publication date: 08 June 2009
DOI: 10.3997/2214-4609.201404989
Organisations: SPE, EAGE
Language: English
Info: Extended abstract, PDF ( 2.22Mb )
Price: € 20

During the Lower Palaeozoic, the Saharan craton was part of the North-Western passive margin of Gondwana and was located close to the South Pole during the Cambrian and Ordovician (Stamplfi & Borel, 2002). A short-lived glaciation event occurred in the Latest Ordovician. The ice sheet covered a large part of North Africa and resulted in a major phase of glacial erosion. This glacial erosion formed the tunnel valleys that we see in the outcrops of the Tassili N’Ajjers today.

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