标题:
Tectonics and Sulphide Mineralization in the Boundiali Birimian Formations by Means of Geophysical Data
作者:
Simon Pierre Djroh, Loukou Nicolas Kouamé, Serge Pacôme Déguine Gnoleba, Yapo Abolé Serge Innocent Oboue, Boko Célestin Sombo
关键词:
Geophysics, Shear Zone, Gold Sulphite, Birimian, Côte d’Ivoire
期刊名称:
Journal of Geoscience and Environment Protection,
Vol.10 No.10,
October
18,
2022
摘要: This study focused on the
interpretation of geophysical data collected from the Sissedougou prospect
which is located at the southern end of the Korhogo-M’Benguebirimian trench. The
geophysical surveys were carried out on two grids with two magnetometers and an
induced polarisation unit composed of a transmitter and a receiver. The
magnetic data allowed on one side the mapping of basic, intrusive and volcanic
formations, weakly magnetic rocks produced by meta-sediments to be showed, and
on the other hand to identify the continuity of the shear corridor observed
southward and northward of the prospect. Induced polarisation data revealed the
signature of sulphide and disseminated mineralization. The synthesis of the
obtained results showed that deep NE-SW, NNE-SSW and N-S oriented fractures
promoted the late rise of sulphide fluids. The setting of sulphide and gold mineralization in
the southern part of the Boundiali trench is therefore controlled by ductile
and brittle shearing.