TITLE:
Petrography and Geochemistry of Precambrian Basement Straddling the Cameroon-Chad Border: The Touboro Baïbokoum Area
AUTHORS:
Naïmou Seguem, Ganwa Alembert Alexandre, Urs Klötzli, Amadou Diguim Kepnamou, Ekodeck Georges Emmanuel
KEYWORDS:
Precambrian Basement, Touboro-Baïbokoum, Cameroon, Chad, Adamawa-Yade Domain, Central African Fold Beld
JOURNAL NAME:
International Journal of Geosciences,
Vol.5 No.4,
April
28,
2014
ABSTRACT: The border of Cameroon and Chad is characterized by a Precambrian
basement straddling the Touboro-Ba?bokoum area; this basement is made up of
gneiss, amphibolite and granitoids (granite, syenite, granodiorite). The
studied rocks display high-K calk-alcalcaline to shoshonitic characteristic.
Granitoids are metaluminous. Rocks under study derived from partial melts from
metabasaltic to metatonalitic sources, and partial melts from metagreywackes. They
shear the same origin as many granitoids describe westward in the Meiganga area
and west Cameroon. This shows that the basement straddling the Touboro-Ba?bokoum
area belongs to the Adamawa-Yadé Domain of the Central African Fold Belt.