Search Results - "Zajacz, Zoltán"
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1
Sulfur and chlorine budgets control the ore fertility of arc magmas
Published in Nature communications (21-07-2022)“…Continental arc magmas supply the ore-forming element budget of most globally important porphyry-type ore deposits. However, the processes enabling certain arc…”
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2
The effect of melt composition on the partitioning of oxidized sulfur between silicate melts and magmatic volatiles
Published in Geochimica et cosmochimica acta (01-06-2015)“…Experiments were conducted at 500MPa and 1240°C in a piston cylinder apparatus to assess the effect of melt composition on the melt/volatile partition…”
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3
The solubility of silver in magmatic fluids: Implications for silver transfer to the magmatic-hydrothermal ore-forming environment
Published in Geochimica et cosmochimica acta (01-10-2018)“…Silver is a common and economically important constituent of many magmatic-hydrothermal ore deposits, yet little is known about its mobility during magma…”
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4
The partitioning of Cu, Au and Mo between liquid and vapor at magmatic temperatures and its implications for the genesis of magmatic-hydrothermal ore deposits
Published in Geochimica et cosmochimica acta (15-06-2017)“…The partition coefficients of Cu, Au and Mo between liquid and vapor were determined at P=130MPa and T=900°C, and P=90MPa and T=650°C and redox conditions…”
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5
The solubility of platinum in magmatic brines: Insights into the mobility of PGE in ore-forming environments
Published in Geochimica et cosmochimica acta (01-01-2022)“…Several field-based studies have proposed that late-stage magmatic aqueous brines may be responsible for the transportation and redistribution of…”
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6
The partitioning behavior of Mo during magmatic fluid exsolution and its implications for Mo mineralization
Published in Geochimica et cosmochimica acta (15-12-2022)“…Most of the global Mo resources are derived from porphyry-type ore deposits, the formation of which hinges critically on the ability of an exsolving magmatic…”
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7
Can magma degassing at depth donate the metal budget of large hydrothermal Sb deposits?
Published in Geochimica et cosmochimica acta (01-12-2020)“…A genetic link between Sb mineralization and magmatism has previously been proposed, yet little is known about the mobility of Sb during magma degassing. We…”
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The solubility of gold and palladium in magmatic brines: Implications for PGE enrichment in mafic-ultramafic and porphyry environments
Published in Geochimica et cosmochimica acta (01-01-2022)“…We performed experiments to determine the solubility of Au and Pd in magmatic aqueous fluids as a function of oxygen fugacity (ƒO2), temperature (T), pH and…”
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9
The partitioning of sulfur and chlorine between andesite melts and magmatic volatiles and the exchange coefficients of major cations
Published in Geochimica et cosmochimica acta (15-07-2012)“…Andesite melts were equilibrated with an H–O–S-bearing volatile phase to determine the partition coefficients for S and Cl as a function of melt composition…”
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10
Gold and copper in volatile saturated mafic to intermediate magmas: Solubilities, partitioning, and implications for ore deposit formation
Published in Geochimica et cosmochimica acta (15-08-2012)“…The solubility of Au and Cu in hydrous andesite melts was determined at 1000°C and 200MPa. The data show that the solubility of Au is highly influenced by…”
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11
Fractionation of Cl/Br during fluid phase separation in magmatic–hydrothermal fluids
Published in Geochimica et cosmochimica acta (15-06-2016)“…Brine and vapor inclusions were synthesized to study Cl/Br fractionation during magmatic–hydrothermal fluid phase separation at 900°C and pressures of 90, 120,…”
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12
The solubility of copper in high-temperature magmatic vapors: A quest for the significance of various chloride and sulfide complexes
Published in Geochimica et cosmochimica acta (15-05-2011)“…We conducted experiments to determine the effect of various chemical components (NaCl, KCl, HCl, FeCl 2, H 2S, SO 2) on the solubility of Cu in single phase…”
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13
Copper partitioning between silicate melts and amphibole: Experimental insight into magma evolution leading to porphyry copper ore formation
Published in Chemical geology (05-01-2017)“…A series of piston cylinder experiments were conducted to determine the partition coefficient of Cu between amphibole and andesitic to rhyolitic silicate…”
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14
Synthetic Fluid Inclusions XXIV. In situ Monitoring of the Carbonation of Olivine Under Conditions Relevant to Carbon Capture and Storage Using Synthetic Fluid Inclusion Micro-Reactors: Determination of Reaction Rates
Published in Frontiers in climate (25-10-2021)“…Ultramafic and mafic rocks are possible targets for CO 2 sequestration via mineral carbonation. The determination of reaction kinetics and the factors that…”
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Magmatic controls on the genesis of porphyry Cu–Mo–Au deposits: The Bingham Canyon example
Published in Earth and planetary science letters (05-12-2017)“…Bingham Canyon is one of the world's largest porphyry Cu–Mo–Au deposits and was previously used as an example to emphasize the role of magma mixing and…”
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16
An accurate model to predict sulfur concentration at anhydrite saturation in silicate melts
Published in Geochimica et cosmochimica acta (15-09-2019)“…Magmatic sulfur is an essential constituent for the genesis of porphyry-type ore deposits and also significantly affects the Earth’s climate when emitted into…”
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17
The solubility of Cu, Ag and Au in magmatic sulfur-bearing fluids as a function of oxygen fugacity
Published in Geochimica et cosmochimica acta (01-08-2022)Get full text
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18
Magmatic-hydrothermal tin deposits form in response to efficient tin extraction upon magma degassing
Published in Geochimica et cosmochimica acta (01-01-2022)“…Most of the global Sn resources are from granite-related ore deposits, which form in response to cassiterite precipitation from hydrothermal fluids. However,…”
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Coexisting silicate melt inclusions and H2O-bearing, CO2-rich fluid inclusions in mantle peridotite xenoliths from the Carpathian–Pannonian region (central Hungary)
Published in Chemical geology (15-06-2010)“…Coexisting fluid inclusions and silicate melt inclusions, trapped as primary inclusions in clinopyroxene rims and as secondary inclusions along healed…”
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Water concentrations and hydrogen isotope compositions of alkaline basalt-hosted clinopyroxene megacrysts and amphibole clinopyroxenites: the role of structural hydroxyl groups and molecular water
Published in Contributions to mineralogy and petrology (01-05-2016)“…The aim of this study was to determine both ‘water’ contents (as OH − and H 2 O) and δD values of several clinopyroxene samples from alkaline basalts. These…”
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