TITLE:
Litho-Tectonic Architecture of the Dialafara Area, Kédougou-Kéniéba Inlier, Integration of New Field Data and Geophysics
AUTHORS:
Mahamadou Diallo, Mamadou Yossi, Ibrahim Méyès Coulibaly, Youssouf Son, Amako Dolo
KEYWORDS:
Kédougou-Kéniéba Inlier, Dialafara, Mapping, Aeromagnetic Data, Structure
JOURNAL NAME:
Open Journal of Geology,
Vol.14 No.3,
March
7,
2024
ABSTRACT: The
Dialafara area is part of the highly endowed Kédougou-Kéniéba Inlier (KKI),
West-Malian gold belt, which corresponds to a Paleoproterozoic window through
the West African Craton (WAC). This study presents, first of all, an
integration of geophysical data interpretation with litho-structural field
reconnaissance and then proposes a new litho-structural map of the Dialafara
area. The
Dialafara area shows a variety of lithology characterized by volcanic and
volcano-sedimentary units, metasediments and plutonic intrusion. These
lithologies were affected by a complex superposition of structures of unequal
importance defining three deformation phases (DD1 to DD3)
under ductile to brittle regimes. These
features permit to portray a new litho-structural map, which shows that the
Dialafara area presents a more complex lithological and structural context than
the one presented in regional map of the KKI. This leads to the evidence that this area could be a potential
site for exploration as it is situated between two world-class gold districts.