Campus Units
Geological and Atmospheric Sciences
Document Type
Article
Publication Version
Published Version
Publication Date
2013
Journal or Book Title
Minerals
Volume
3
Issue
2
First Page
165
Last Page
191
DOI
10.3390/min3020165
Abstract
Extremely Re-rich molybdenite occurs with pyrite in sodic–calcic, sodic–sericitic and sericitic-altered porphyritic stocks of granodioritic–tonalitic and granitic composition in the Sapes–Kirki–Esymi, Melitena and Maronia areas, northeastern Greece. Molybdenite in the Pagoni Rachi and Sapes deposits is spatially associated with rheniite, as well as with intermediate (Mo,Re)S2 and (Re,Mo)S2 phases, with up to 46 wt % Re. Nanodomains and/or microinclusions of rheniite may produce the observed Re enrichment in the intermediate molybdenite–rheniite phases. The extreme Re content in molybdenite and the unique presence of rheniite in porphyry-type mineralization, combined with preliminary geochemical data (Cu/Mo ratio, Au grades) may indicate that these deposits have affinities with Cu–Au deposits, and should be considered potential targets for gold mineralization in the porphyry environment. In the post-subduction tectonic regime of northern Greece, the extreme Re and Te enrichments in the magmatic-hydrothermal systems over a large areal extent are attributed to an anomalous source (e.g., chemical inhomogenities in the mantle-wedge triggered magmatism), although local scale processes cannot be underestimated.
Rights
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
Copyright Owner
The Authors
Copyright Date
2013
Language
en
File Format
application/pdf
Recommended Citation
Voudouris, Panagiotis; Melfos, Vasilios; Spry, Paul G.; Bindi, Luca; Moritz, Robert; Ortelli, Melissa; and Kartal, Tamara, "Extremely Re-Rich Molybdenite from Porphyry Cu-Mo-Au Prospects in Northeastern Greece: Mode of Occurrence, Causes of Enrichment, and Implications for Gold Exploration" (2013). Geological and Atmospheric Sciences Publications. 116.
https://lib.dr.iastate.edu/ge_at_pubs/116
Comments
This is an article from Minerals 3 (2013): 165, doi:10.3390/min3020165. Posted with permission.