APPLICATION DU MODELE INVERSE AUX INTERACTIONS EAU-ROCHE DANS LES EAUX SOUTERRAINES DES METAGRANODIORITES, SUD-EST COTE D’IVOIRE

  • Yéï Marie Solange Oga DSTEGE, Université Félix Houphouët-Boigny, Abidjan, Côte d’Ivoire
  • Bernard Adiaffi DSTEGE, Université Félix Houphouët-Boigny, Abidjan, Côte d’Ivoire
  • Franck Maxime Gnamba DSTEGE, Université Félix Houphouët-Boigny, Abidjan, Côte d’Ivoire
  • Christelle Marlin Laboratoire IDES UMR 8148 CNRS Bât. 504 Université Paris Sud 11 Orsay, France
  • Derving Baka DSTEGE, Université Félix Houphouët-Boigny, Abidjan, Côte d’Ivoire
  • Etche Mireille Elise Amani GMS, Université Félix Houphouët-Boigny, Abidjan, Côte d’Ivoire
  • Et Jean Biémi DSTEGE, Université Félix Houphouët-Boigny, Abidjan, Côte d’Ivoire

Abstract

In Ivory Cost, few studies have been performed on the process of water-rock interactions in aquifers of basement. The study aim is to provide, from an inverse model by usgs program “phreeqci”, orders of magnitude of the mass transfer from each mineral during the process of water mineralization in the aquifer of metagranodiorites. We use mineralogy and geochemistry of water and rocks. The mineralogical study indicated paragenesis of plagioclase-feldspar-chlorite-biotite and amphibole. Kaolinite is assumed to be the clay product of silicate minerals hydrolysis in the study area. The simulation provided dissolution rate of 8.3 10-4 mol l-1 for plagioclase, 1.7 10-4 mol l-1 for chlorite, 9.4 10-5 mol l-1 for biotite and 2.3 10- 5 mol l-1 for amphibole during water-rock interaction process occurred 15,000 years ago.

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Published
2015-01-30
How to Cite
Oga, Y. M. S., Adiaffi, B., Gnamba, F. M., Marlin, C., Baka, D., Amani, E. M. E., & Biémi, E. J. (2015). APPLICATION DU MODELE INVERSE AUX INTERACTIONS EAU-ROCHE DANS LES EAUX SOUTERRAINES DES METAGRANODIORITES, SUD-EST COTE D’IVOIRE. European Scientific Journal, ESJ, 11(3). Retrieved from https://eujournal.org/index.php/esj/article/view/4988