alexa Petro-geochemistry, Genesis and Economic Aspects of Mafic Volcanic Rocks in the West and Southern Part of The Mamfe Basin (SW Cameroon, Central Africa)
ISSN: 2381-8719

Journal of Geology & Geophysics
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Research Article

Petro-geochemistry, Genesis and Economic Aspects of Mafic Volcanic Rocks in the West and Southern Part of The Mamfe Basin (SW Cameroon, Central Africa)

Nguo Sylvestre Kanouo1*, Rose Fouateu Yongue2, Tanwi Richard Ghogomu2,3, Emmanuel Njonfang4, Syprien Bovari Yomeun2 and Emmanuel Archelaus Afanga Basua5

1Mineral Exploration and Ore Genesis Unit, Department of Mines and Quarries, Faculty of Mines and Petroleum Industries, University of Maroua, Cameroon'

2Department of Earth Sciences, University of Yaoundé I, Cameroon

3Department of security, Quality and Environment, Faculty of Mines and Petroleum Industries, University of Maroua, Cameroon'

4Higher Teachers Training School, University of Yaoundé I, Cameroon

5Department of Earth Sciences, China University of Geosciences wuhan, China

*Corresponding Author:
Nguo Sylvestre Kanouo
Department of Mines and Quarries
University of Maroua, Cameroon
Tel: +237678966240, +237678966240
E-mail: [email protected], [email protected]

Received date: June 01, 2017; Accepted date: July 18, 2017; Published date: July 25, 2017

Citation: Kanouo NS, Yongue RF, Ghogomu TR, Njonfang E, Yomeun SB, et al. (2017) Petro-geochemistry, Genesis and Economic Aspects of Mafic Volcanic Rocks in the West and Southern Part of The Mamfe Basin (SW Cameroon, Central Africa). J Geol Geophys 6:298. doi: 10.4172/2381-8719.1000298

Copyright: © 2017 Kanouo NS, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Geologic prospecting, petrographic and geochemical analyses of mafic volcanic exposures in the west and southern part of the Mamfe Basin (SW Cameroon) distinguishes: basanites, picro-basalts, alkali basalts and tholeiitic basalts. They are relatively LREE-enriched, undersaturated, saturated or oversaturated due to presence or absence of normative nepheline, hypersthene or quartz. Basanites mainly form pillow-like lavas, and are aphyric or porphyritic. They have significant concentration of Ni (up to 387 ppm) and Ba (up to 436 ppm). These alkaline rocks cooled from less evolved mantle source magma. Picro-basaltic fragments exclusively found in the western part of the basin are Ni (up to 259 ppm) Ba (up to 2090 ppm) -enriched porphyritic, alkaline or subalkaline rocks. They also cooled from less evolved mantle source magma. Basalts form volcanoclasts, flow and dykes. They are aphyric or porphyritic, alkaline, transitional or subalkaline. Some of these rocks are Al-enriched. They crystallized from variably evolved mantle source magma within the Oceanic Island Basalt and Continental Rift Basalt tectonic settings.

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