Origin of the Bouarfa Manganese ore deposit (Eastern High Atlas, Morocco): insights from petrography and geochemistry of the mineralization

Ludovic Lafforgue, Jocelyn Barbarand, Yves Missenard, Benjamin Brigaux, Bertrand Saint-Bézar, Augustin Dekoninck, Johan Yans

Résultats de recherche: Contribution dans un livre/un catalogue/un rapport/dans les actes d'une conférenceArticle dans les actes d'une conférence/un colloque

Résumé

Abstract. The Bouarfa ore deposit represents one of the
main Manganese ore deposits of Morocco. The
mineralization corresponds to a stratabound deposit in a
liassic dolostone unit. Previous studies have suggested
that this deposit has been formed during sedimentation at
the sedimentary water interface. However, the location of
the Bouarfa district along the North Atlasic Front in a fold
cut by a thrust fault questions the influence of this
structure on the mineralization, its origin and evolution.
The petrographic characterization of the dolostone
emphasizes a late diagenetic dolomitization process prior
to Mn mineralization. Moreover, petrographical, mineralogical
and trace element geochemistry demonstrate that
the fluids involved in the mineralization precipitated Mn
tunnel-like structure oxides in a high oxidised
environment. The fluids probably derived from hydrothermal
systems. These elements argue for a postsedimentary
model for the mineralization.
langue originaleAnglais
titreOrigin of the Bouarfa Manganese ore deposit (Eastern High Atlas, Morocco): insights from petrography and geochemistry of the mineralization
Lieu de publicationNancy
Pages259-262
Volume5
EditionSGA
Etat de la publicationPublié - 25 août 2015
Evénement13th SGA Biennial Meeting - Palais des Congrès, Nancy, France
Durée: 24 juil. 201527 août 2015

Une conférence

Une conférence13th SGA Biennial Meeting
PaysFrance
La villeNancy
période24/07/1527/08/15

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  • Activités

    • 1 Participation à un Colloque, une journée d'étude

    13th SGA Biennial Meeting

    Augustin Dekoninck (Poster)

    24 août 201527 août 2015

    Activité: Types de Participation ou d'organisation d'un événementParticipation à un Colloque, une journée d'étude

    Contient cette citation

    Lafforgue, L., Barbarand, J., Missenard, Y., Brigaux, B., Saint-Bézar, B., Dekoninck, A., & Yans, J. (2015). Origin of the Bouarfa Manganese ore deposit (Eastern High Atlas, Morocco): insights from petrography and geochemistry of the mineralization. Dans Origin of the Bouarfa Manganese ore deposit (Eastern High Atlas, Morocco): insights from petrography and geochemistry of the mineralization (SGA Ed., Vol 5, p. 259-262).