Melfos, Vasilios and Voudouris, Panagiotis and Serafimovski, Todor and Tasev, Goran (2019) Fluid Inclusions at the Plavica Au-Ag-Cu Telescoped Porphyry–Epithermal System, Former Yugoslavian Republic of Macedonia (FYROM). Geosciences, 9 (2/88). pp. 1-18. ISSN 2076-3263
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Abstract
The Plavica Au-Ag-Cu porphyry and high sulfidation (HS) epithermal deposit is located at the Kratovo–Zlatovo volcanic field in Eastern Former Yugoslavian Republic of Macedonia. In this study, new fluid inclusions data provide additional evidence of the presence of a porphyry style mineralization which is associated with an overlain HS epithermal deposit. The Oligocene–Miocene magmatic rocks have a calc–alkaline to high-K calc–alkaline affinity and consist of sub-volcanic intrusions and volcanic rocks. Previous studies distinguished four alteration types: (a) Sericitic, (b) advanced argillic, (c) silicification, and (d) propylitic alteration. Fluid inclusions showed an early magmatic brine in porphyry style veins with high salinity (33–57 wt% NaCl equiv.),
which coexists with a vapor rich fluid with lower salinity (14–20 wt% NaCl equiv.), at temperatures
380–500oC, under boiling conditions. At shallower depths, the fluid inclusions demonstrate various
HS–epithermal deposits which were formed by moderate to low salinity (3–14 wt% NaCl equiv.)
hydrothermal fluids at lower temperatures from 200 to 300 oC.
| Item Type: | Article |
|---|---|
| Subjects: | Natural sciences > Earth and related environmental sciences |
| Divisions: | Faculty of Natural and Technical Sciences |
| Depositing User: | Goran Tasev |
| Date Deposited: | 15 Feb 2019 08:45 |
| Last Modified: | 15 Feb 2019 08:45 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/21570 |
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