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Modelling of an MVT deposit: Touissit-Bou Beker district (eastern Morocco)

Authors
Journal
Journal of Geochemical Exploration
0375-6742
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/s0375-6742(00)00130-8
Keywords
  • Mesozoic
  • Lead-Zinc
  • Vein
  • Stratiform Mineralization
  • Fluid Inclusions
  • Modelling
  • Touissit-Bou Beker
  • Morocco
Disciplines
  • Chemistry
  • Earth Science
  • Geography

Abstract

Abstract The Touissit-Bou Beker district mineralization is located in a lower Jurassic condensed series on top of a major basement horst. Field and laboratory data from several ore deposits indicate that Pb–Zn mineralization took place in dolomite strata by ascending hot, saline fluids probably during the Late Jurassic. The geochemistry of the ore fluid and the mineralization have been tentatively modelled with “Geochemist's Workbench™” Two-dimensional (2D)-modelling of fluid flow at the regional scale has been undertaken, after reconstitution of regional structure, using a code of coupled heat and fluid transport (METIS), in order to give an image of hydrothermal circulations at the time of ore deposition. The horst structure causes convective circulation driving sedimentary fluids down through Triassic saline beds and up through basement rocks into the top of the horst.

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