%0 Journal Article
%T Petrology, Age and Geodynamic Implication of the Panafrican Granitoids Associated with the Glito-Kpatala Shear Zone (South-East Togo)
%A Gnanwasou Alayi
%A Sarakawa Abalo Malibida Kpanzou
%A Yao Agbossoumond¨¦
%A Essodina Padaro
%A Ren¨¦-Pierre Menot
%A Mahaman Sani Tairou
%J International Journal of Geosciences
%P 1193-1225
%@ 2156-8367
%D 2023
%I Scientific Research Publishing
%R 10.4236/ijg.2023.1412061
%X The granitic plutons associated with the
Glito-Kpatala shear zone are composed of biotite and amphibole granodiorites,
biotite granites, two-mica gra</span><span><span style=\"font-family:Verdana;\">nites and </span><span style=\"font-family:Verdana;\">aplitic granites, which are very poorly represented.
The chemical and</span></span><span style=\"font-family:Verdana;\"> mineralogical compositions of these facies indicate
that they are I type and belong to high-K calc-alkaline series, with a chemical
metaluminous character displayed by the granodiorites relative to the biotite
and two-mica facies whose chemical compositions vary between metaluminous and
peraluminous caracter. The Th/Ta (14.04</span></span><span style=\"font-family:&quot;\"> </span><span style=\"font-family:Verdana;\">-</span><span style=\"font-family:&quot;\"> </span><span style=\"font-family:&quot;\"><span style=\"font-family:Verdana;\">43.82
ppm, mean = 26.05), Th/U (2.58 to 15.05 ppm, mean = 5.85 ppm), Zr/Hf (25.27 to
37.21, mean = 30.67 ppm) and Rb/Sr (0.16 to 4.32; mean = 1.67 ppm) ratios of
these granitoids reveal a strong crustal involvement in their magmatogenesis.
Variations in CaO/Na</span><sub><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-family:Verdana;\">O (0.47</span></span><span style=\"font-family:&quot;\"> </span><span style=\"font-family:Verdana;\">-</span><span style=\"font-family:&quot;\"> </span><span style=\"font-family:Verdana;\">1.44
ppm), Rb/Sr (0.14</span><span style=\"font-family:&quot;\"> </span><span style=\"font-family:Verdana;\">-</span><span style=\"font-family:&quot;\"> </span><span style=\"font-family:Verdana;\">0.27 ppm), Rb/Ba (0.07</span><span style=\"font-family:&quot;\"> </span><span style=\"font-family:Verdana;\">-</span><span style=\"font-family:&quot;\"> </span><span style=\"font-family:Verdana;\">0.14 ppm) and Sr/Y (38.21</span><span style=\"font-family:&quot;\"> </span><span style=\"font-family:Verdana;\">-</span><span style=\"font-family:&quot;\"> </span><span style=\"font-family:Verdana;\">174.42
ppm) ratios indicate that biotite and amphibole granodiorites with their excessive
Ni (135.37</span><span style=\"font-family:Verdana;\"> - </span><span style=\"font-family:Verdana;\">139</span><span style=\"font-family:Verdana;\">.</span><span style=\"font-family:Verdana;\">51 ppm)
and Cr (395.73</span><span style=\"font-family:&quot;\"> </span><span style=\"font-family:Verdana;\">-</span><span style=\"font-family:&quot;\"> </span><span style=\"font-family:&quot;\"><span style=\"font-family:Verdana;\">447.74 ppm)
%K Pan-African Granitoids
%K Post-Collisional
%K Shear Zone
%K South-East Togo
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=130263