PD Dr. Sebastian Lüning
Black Shale


Frasnian black shales
in the Ahnet Basin (Central Algeria)

Current Projects

Silurian 'hot shales' of
North Africa

Silurian of the Arabian Peninsula &
neighbouring areas

Geology Films
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Silurian 'hot shales' of
SW Libya

Geology of Morocco

Picture Gallery 
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black shales sorted...
by region
by stratigraphic age

Gamma-Ray Spectrometry

Weathering of black shales

other sites:
Regional geology of the world

North Africa Research Group GeoNet

About Sebastian Lüning  
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Frasnian organic-rich strata in North Africa

Lower Frasnian black shales have been deposited in many parts of North Africa and form an important hydrocarbon source rock in this region with TOC values of up to 14% (Boote et al. 1998). Little is published about Frasnian organic-rich strata, because most information from exploration activities remains confidential. A synthesis has been recently compiled by Luning et al. (in press).

Frasnian black shales in the Ahnet Basin (Central Algeria)

Frasnian black shales are exposed at the southern flanks of the Ahnet Basin. Contact with the underlying Givetian is particularly well exposed in the following seven sections. Click on the sections for a selection of field photographs. Horizon numbers refer to a manuscript submitted to Sedimentary Geology.