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  2. Petrogenesis of the cenozoic Meghri-Ordubad pluton, southernmost Lesser Caucasus: implications for the formation of large porphyry Cu-Mo(-Au) systems during the Arabia-Eurasia accretionary orogenesis
Doctoral thesis
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English

Petrogenesis of the cenozoic Meghri-Ordubad pluton, southernmost Lesser Caucasus: implications for the formation of large porphyry Cu-Mo(-Au) systems during the Arabia-Eurasia accretionary orogenesis

Contributors

Rezeau, Hervé

Directors

Moritz, Robert

Defense date

2017-08-31

Abstract

This thesis composed of four chapters aims at establishing (1) a better general understanding between the magmatism and the formation of Cu-Mo(-Au) ore deposits, (2) a petrogenetic model for the composite Meghri-Ordubad pluton incrementally assembled over 30 m.y. and associated with ore-forming pulses. The multi-disciplinary approach allows to reveal a very complex magmatic-hydrothermal system operating over several tens of million years, which is very attractive to investigate the magmatic evolution in a geodynamic framework linked to the Alpine orogenesis and more specifically related to the closure of the Neotethys during the final convergence of the Arabian toward the Eurasian plate leading to a continental collision followed by a progressive post-collisional relaxation along the Turkish-Iranian plateau. Finally, the link with the formation of ore deposits allows us to assess optimal magmatic, tectonic and hydrothermal conditions leading to the formation of large economic resources.

Keywords

  • Lesser Caucasus
  • Ore deposits
  • Magmatism
  • Petrology
  • Geochemistry
  • Geochronology
  • Petrography
  • Armenia
  • Tethyan orogenic belt
  • Subduction
  • Collision
  • Post-collision

UNIGE affiliation entities

UNIGE research groups

Citation (ISO format)

REZEAU, Hervé. Petrogenesis of the cenozoic Meghri-Ordubad pluton, southernmost Lesser Caucasus: implications for the formation of large porphyry Cu-Mo(-Au) systems during the Arabia-Eurasia accretionary orogenesis. Doctoral Thesis, 2017. doi: 10.13097/archive-ouverte/unige:98683

Main files (1)

Thesis

Secondary files (5)

Supplemental data - Table E.1 - Olivine
Supplemental data - Table E.2 - Clinopyroxene
Supplemental data - Table E.3 - Plagioclase
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Identifiers

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Technical informations

Creation

03/11/2017 13:57:00

First validation

03/11/2017 13:57:00

Update

15/03/2023 02:16:58

Status update

15/03/2023 02:16:57

Last indexation

13/05/2025 17:31:36
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