EMPLACEMENT OF A GRANITE PLUTON IN THE BR ITTLE BIRIMIAN CRUST - MAGNETIC FABRIC OF THE TENKODOGO MASSIF (BURKINA-FASO)

Field observations, structural measurements and anisotropy of magnetic susceptibility measurements have contributed to define the main featu res of a granite massif which was emplaced late within the Eburnean ma gmatic complex of the Lower Proterozoic of West Africa. It is conclude d that the magma infilled a gash in the brittle crust. This opening in the crust possibly formed as a jog along a sinistrally offset NE-SW f racture, one of many that affect the Birimian basement of eastern Burk ina Faso.