Geological map of theTarkwa gold district in Ghana showing significant folding and faulting associated with Eburnean metamorphism.[1]Geological map of Ivory Coast, in which the "Eburnean,geosynclinalfacies" is equivalent to theBirimian.[1]
Mountain building event in what is now West Africa
Eburnian faults are found in theEglab shield to the north of theWest African craton and in theMan Shield to the south of the craton.[5] There is evidence of three major Eburnean magmatic events in the Eglab shield.Between 2210 and 2180 Ma, a metamorphosed batholith was formed in the Lower Reguibat Complex (LRC).Around 2090 Ma, a syntectonictrondhjemitic pluton intruded into theArchaean reelects of the Chegga series. Around 2070 Ma anasthenospheric upwelling released a large volume of post-orogenic magmas.[6]Eburnian trends within the Eglab shield were repeatedly reactivated from the Neoproterozoic to the Mesozoic.[7]
^abWright, J.B.; Hastings, D.A.; Jones, W.B.; Williams, H.R. (1985). Wright, J.B. (ed.).Geology and Mineral Resources of West Africa. London: George Allen & UNWIN. pp. 45–46.ISBN9780045560011.
^Wright, J.B.; Hastings, D.A.; Jones, W.B.; Williams, H.R. (1985). Wright, J.B. (ed.).Geology and Mineral Resources of West Africa. London: George Allen & UNWIN. pp. 45–47.ISBN9780045560011.
