Open Journal of Geology, 2022, 12, 294-311
https://www.scirp.org/journal/ojg
ISSN Online: 2161-7589
ISSN Print: 2161-7570
DOI: 10.4236/ojg.2022.123016 Mar. 31, 2022 294 Open Journal of Geology
Mineralogy and Geochemistry of Eteké
Eburnean Gold Deposit (Gabon)
Makarim Dalil
1
, Nazaire Nzaou Mabika
2
, Amina Wafik
2
, Zohir Baroudi
1
,
Abdelmalek Ouadjou
3
, Mohamed Gharrabi
3
, Amine Bouwafoud
1
,
Nouamane El Aouad
2
, Youssef Zerhouni
1
, Saida Alikouss
1
1
Laboratoire géosciences et applications, Faculté des sciences Ben M’sik, Casablanca, Morocco
2
Laboratoire Dynamique de la Lithosphère et Genèse des Ressources, Faculté des Sciences Semlalia, Marrakech, Morocco
3
Managem Group, Twin Center, Casablanca, Morocco
Abstract
The Gabon geology offered favorable and natural environments for the for-
mation of various types of mineralization. The Etéké gold district, aim of this
study, is located in the Ngounié province (southern Gabon) on the western
edge of the Chaillu massif. Geologically, the gold mineralization is associated
with the Eburnean orogeny and hosted in the Archean greenstone belts. Also,
this deposit is covered by a significant vegetation cover and a very extensive
lateritic weathering profile, which hinders the most accurate study. Through
this paper, we aim to propose a genesis pattern of this mineralization via a
multidisciplinary approach. To do this, a petrographic, metallogenic, and geo-
chemical characterization has been established in the different sectors of the
Etéké deposit. The studied deposits display varied facies which are encased in
granitoid. They are essentially formed of abundant granitoid, and amphibolite
compared to the volcano-sedimentary formations. These rocks display mag-
matic textures, affected by metamorphism, and not sufficiently preserved. Based
on our multidisciplinary approach, the studied samples collected from the
core’s boreholes allowed us to decipher a volcanogenic and metamorphosed
origin of the gold genesis.
Keywords
Eburnean Orogeny, Gabon, Gold, Greenstone, Granitoids, Amphibolite
1. Introduction
1.1. Geology of Gabon
The examination of the Gabon map helps to differentiate four major tectono-
How to cite this paper: Dalil, M., Mabika,
N.N., Wafik, A., Baroudi, Z., Ouadjou, A.,
Gharrabi, M., Bouwafoud, A., El Aouad, N.,
Zerhouni, Y. and Alikouss, S. (2022) Mine-
ralogy and Geochemistry of Eteké Ebur-
nean Gold Deposit (Gabon). Open Journal
of Geology, 12, 294-311.
https://doi.org/10.4236/ojg.2022.123016
Received: December 20, 2021
Accepted: March 28, 2022
Published: March 31, 2022
Copyright © 2022 by author(s) and
Scientific Research Publishing Inc.
This work is licensed under the Creative
Commons Attribution International
License (CC BY 4.0).
http://creativecommons.org/licenses/by/4.0/
Open Access