Carte géologique de l’Afrique-SIG

Carte géologique de l’Afrique-SIG

Note: This GIS is subject to a licence agreement.

A new edition of the 10 million scale Geological Map of Africa was produced on the occasion of the 35^e Congrès géologique international (Le Cap, 29 août-2 septembre 2016) sous l’impulsion de la Commission de la Carte Géologique du Monde (CCGM), avec le soutien de l’UNESCO et de la Société géologique d’Afrique, et la coordination technique et scientifique du BRGM.

Cette nouvelle carte reprend largement les données géologiques de carte Geology and main deposits of Africa published on the same scale on the occasion of the 20^e Congrès de géologie africaine (Orléans, 2-7 June 2004) while enriching it with works published since.

In line with recent developments in geological mapping, the new edition is mainly guided by the time parameter and uses, with very little modification, the colour code recommended by the CGMW. At first sight, it is therefore the organisation into large domains (basins, orogens) of different ages that stands out, the discrimination of rock types in each domain being obtained by the use of overloads.

The geodatabase contains the following information layers:

• Geological formations in the Earth
• Linear structural elements in earth
• Geological formations at sea
• Boundary of the geological formations in the sea
• Structural linear elements in the sea
• Oceanic plateaus
• Oceanic plateau boundary

 The high-resolution jpg file of the legend is available for download here

With the constraints inherent in producing a small-scale synthesis of a very large region, this new edition aims to make the overall geological organisation of Africa easily perceptible, leading to a continental-scale vision.

Carte géologique de l’Afrique-SIG