A5052546085- Geological and Geochemical Analysis
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Geochemistry and Geologic Mapping
- Crystal Structures and Properties
- Mineralogy and Gemology Studies
- Atmospheric and Environmental Gas Dynamics
- Radiomics and Machine Learning in Medical Imaging
- Oil, Gas, and Environmental Issues
- Hydrocarbon exploration and reservoir analysis
GNS Science
2022-2024
National and Kapodistrian University of Athens
2024
University of Geneva
2017-2022
Abstract. We investigate the occurrence and chemistry of magmatic sulfides their chalcophile metal cargo behaviour during evolution compositionally different magmas from diverse geodynamic settings both in mineralised barren systems. The investigated areas are following: (a) Miocene Konya province (hosting Doğanbey Cu–Mo porphyry Inlice Au epithermal deposits, representing post-subduction) (b) Usak basin (Elmadag, Itecektepe, Beydagi volcanoes, latter associated with Kişladağ western Turkey,...
Platinum-group elements (PGEs) have a strong affinity for sulfur and tend to accumulate in the deep continental crust, either concentrated within magmatic Cu-Ni-PGE deposits or dispersed throughout disseminated sulfides. However, PGE enrichment shallow magmatic-hydrothermal systems implies an obscure link sulfide destabilization, which releases PGEs into ore-forming fluids. To bridge this gap, our study investigates composition of sulfides with oxidative textures dacitic rocks from...
Abstract We report new petrographic and geochemical observations on magmatic sulfides occurring in different enclave types, including hornblende and/or clinopyroxene‐rich cumulates, the host lavas, Nisyros (South Aegean volcanic arc). discuss our findings context of pre‐existing petrological thermobarometry studies. Our results indicate that become less abundant Cu‐richer (Cu median values) with magma differentiation at progressively lower pressure/ P ‐temperature/ T ‐depth conditions....
Physicochemical conditions under which early sulfide saturation occurs and the role of this process in mineralising potential magmas different geodynamic settings have been subject interest many recent studies. Here we present new temperature-pressure-fO2 data on sulfide-saturated magmatic enclaves host lavas from volcanic systems subduction, post-subduction intraplate settings, some are associated with porphyry epithermal deposits. Petrographic investigations coupled mineral chemistry...
Abstract. We investigate in both mineralised and barren systems the occurrence chemistry of magmatic sulphides their chalcophile metal cargo behaviour during evolution compositionally different magmas diverse geodynamic settings. The investigated areas are: (a) Miocene Konya province (hosting Doganbey Cu-Mo Inlice Au-epithermal deposits) (Post-Subduction) (b) Usak basin (Elmadag, Itecektepe Beydagi volcanoes, latter associated with Kisladag Au porphyry) Western Turkey (Post-Subduction). For...
Abstract Relatively fresh volcanic rocks have been sampled by a remotely operated vehicle in situ from the NE caldera wall of Brothers submarine volcano, associated with Seafloor Massive Sulfide‐SMS deposits. Here, we present first complete stratigraphic column wall, comprising at least 12 massive dacitic lava flows, up to 80 m‐thick intercalated multiple volcaniclastic layers tuffaceous sediment layers. Detailed petrographic and geochemical analyses hand specimen crystal silicate melt scale...
<p>The study of magmatic enclaves can provide a vertical understanding the variable levels at which differentiation occurs, allowing us to quantify conditions under processes like sulfide saturation take place. Recent studies have confirmed importance lower crustal hornblende-rich (Chang and Audétat, 2018) deep pyroxene-rich cumulates, as fertile sources in post-subduction collisional settings, by sequestrating most Cu extracted from mantle (Chen et al., 2019)....
Recent studies have reported the presence of magmatic sulfides in a variety rocks corresponding to diverse geodynamic settings and magma compositions 1,2 , suggesting that sulfide saturation is common process magmas.Although are main repositories chalcophile elements, does not necessarily negative effect on potential system produce porphyry deposit 3 .It has been suggested assimilation sulfide-rich cumulates by at shallow crustal levels could result partial dissolution consequent...