Tectonomagmatic Evolution of Precambrian segment:Mako belt Formations
Автор:Mahamadane Diene and Mamadou Gueye Год: 2013 Издание:LAP Lambert Academic Publishing Страниц: 64 ISBN: 9783659336669 The Kedougou Kenieba Inlier (KKI) (Paleoproterozoic of Eastern Senegal) is a portion of the West African Craton (WAC) containing a granite-greenstone terrain that experienced three distinct periods of magmatic activity, peaking at 2200, 2160–2130 and 2100–2070 Ma. In the Inlier, Paleoproterozoic granitoids and large-scale transcurrent shear zones are spatially associated, suggesting a genetic link between magma bodies and shear zones.In Mako Belt, Granitic intrusions are associated with all the volcanic episodes and phases of deformation, and have been used to constrain the age of many of these events.The deformation sequence indicate that the Mako Greenstone Belt and the adjacent granitoid complexes have undergone a multi-phase evolutionary history that is spread over a prolonged period.
