Structural Analysis of the Bagoué Furrow (South Boundiali) in the Northwest of Ivory Coast: Fracturing, Kinematics and Chronology

Structural mapping from spatial imagery is an important technique in mastering lineamentry fracture networks. The purpose of this work is to make a structural analysis of the Bagoué furrow, using spatial imagery and field data. The methodological approach adopted in the work consists in the pre-processing and digital processing of images, and the extraction of lineaments by means of automatic and manual extraction techniques. Five major lineament directions are identified: the N-S, NNE-SSW, NE-SW, E-W and NW-SE directions. The field data is used to define their kinematics and chronology. This data reveal that the lineaments corresponding to the N-S trending fractures are intersected by the NE-SW trending fractures, which in turn are cut by the NNE-SSW trending fractures. The latter are intersected by the lineaments corresponding to the SE-NW trending fractures. The SE-NW trending fractures are intersected by the E-W trending fractures. Ultimately, the N-S trending fractures are considered the oldest, followed by the NE-SW, NNE-SSW, SE-NW and E-W trending fractures.