https://www.usgs.gov/publications/assessment-undiscovered-shale-gas-resources-grand-ergahnet-basin-province-algeria-2026
Assessment of undiscovered shale-gas resources in the Grand Erg/Ahnet Basin Province of Algeria,...
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 80.1 trillion cubic...
https://digital.library.illinois.edu/items/59526dd0-e946-0133-1d3d-0050569601ca-d
Carte de l'Adrar Ahnet | Digital Collections at the University of Illinois at Urbana-Champaign...