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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
A new metamorphic constraint for the Eburnean orogeny from Paleoproterozoic formations of the Man shield (Aribinda and Tampelga countries, Burkina Faso)
Precambrian Research, Volume 123, No. 1, Year 2003
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Description
Progressive metamorphic zones developed in pelites around the Aribinda granite, Burkina Faso, indicate contact metamorphism at 5-6 kbar. Biotite, chloritoid, staurolite-kyanite zones are distributed concentrically around the Aribinda pluton on its northern margin but are displaced by later thrust faults in the south of the Aribinda area and in the nearly Tampelga area. These metamorphic and structural characteristics provide new constraints for the geodynamical evolution of the Eburnean orogeny in the North part of the Baoulé-Mossi domain. They show the leading part of the granitoid emplacement in the thermic structuration of the greenstone belts and the post-metamorphic character of the tangential tectonic. In Burkina Faso, the Eburnean orogeny underwent: (1) initial greenschist-facies metamorphism; (2) emplacement of granitoids at mid-deep-crustal levels leading to unusual medium pressure metamorphism; (3) later thrusting. © 2003 Elsevier Science B.V. All rights reserved.
Authors & Co-Authors
Debat, Pierre
France, Paris
Cnrs Centre National de la Recherche Scientifique
Nikiéma, Serge
South Africa, Randburg
Bhp Billiton Limited
Mercier, Alain
France, Paris
Cnrs Centre National de la Recherche Scientifique
Lompo, Martin
Burkina Faso, Ouagadougou
University of Ouagadougou
Béziat, Didier
France, Paris
Cnrs Centre National de la Recherche Scientifique
Bourges, François
France, Paris
Cnrs Centre National de la Recherche Scientifique
Roddaz, Martin
France, Paris
Cnrs Centre National de la Recherche Scientifique
Salvi, Stefano
France, Paris
Cnrs Centre National de la Recherche Scientifique
Tollon, Francis
France, Paris
Cnrs Centre National de la Recherche Scientifique
Wenmenga, Urbain
Burkina Faso, Ouagadougou
University of Ouagadougou
Statistics
Citations: 71
Authors: 10
Affiliations: 3
Identifiers
Doi:
10.1016/S0301-9268(03)00046-9
ISSN:
03019268
Study Locations
Burkina Faso