Structural Evolution of the Gold-rich Ashanti Belt, SW Ghana

The Paleoproterozoic Ashanti Belt hosts numerous world class gold deposits such as the Obuasi deposit (60 million ounces) and the Tarkwa deposit (40 million ounces). Characterising the regional structural and magmatic evolution provides new insight into the geotectonic context forming these deposits. In this work, we propose (1) a new geologic and structural map of the area using field observations and airborne geophysical data, (2) a structural context of early gold mineralisation in the Wassa mine, (3) an interpretation of the magmatic evolution during the Eburnean Orogeny and (4) a three-dimensional model of the Ashanti Belt showing possible litho-structural control of the mineralisations.

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Source https://theses.hal.science/tel-00772832
Author Perrouty, Stephane
Maintainer CCSD
Last Updated May 15, 2026, 10:04 (UTC)
Created May 15, 2026, 10:04 (UTC)
Identifier tel-00772832
Language en
Rights https://about.hal.science/hal-authorisation-v1/
contributor Géosciences Environnement Toulouse (GET) ; Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) ; Communauté d'universités et établissements de Toulouse (Comue de Toulouse)-Communauté d'universités et établissements de Toulouse (Comue de Toulouse)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)
creator Perrouty, Stephane
date 2012-06-19T00:00:00
harvest_object_id 46649dac-4381-4d94-bfee-22ab13111bdf
harvest_source_id 3374d638-d20b-4672-ba96-a23232d55657
harvest_source_title test moissonnage SELUNE
metadata_modified 2025-10-22T00:00:00
set_spec type:THESE