Search Results - "Tumiati, S."
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Silicate dissolution boosts the CO2 concentrations in subduction fluids
Published in Nature communications (20-09-2017)“…Estimates of dissolved CO 2 in subduction-zone fluids are based on thermodynamic models, relying on a very sparse experimental data base. Here, we present…”
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Subducted organic matter buffered by marine carbonate rules the carbon isotopic signature of arc emissions
Published in Nature communications (25-05-2022)“…Ocean sediments consist mainly of calcium carbonate and organic matter (phytoplankton debris). Once subducted, some carbon is removed from the slab and returns…”
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Aqueous concentration of CO2 in carbon-saturated fluids as a highly sensitive oxybarometer
Published in Geochemical perspectives letters (01-12-2020)Get full text
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Geochemical evolution of melt/peridotite interaction at high pressure in subduction zones
Published in Geochemical perspectives letters (10-02-2023)Get full text
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Reaction‐Induced Mantle Weakening at High‐Pressure Conditions: An Example From Garnet Pyroxenites of Ulten Zone (Eastern Alps, N Italy)
Published in Journal of geophysical research. Solid earth (01-12-2021)“…Peridotites of Ulten Zone (Eastern Alps, N Italy) show a transition from coarse protogranular spinel lherzolites to fine‐grained amphibole + garnet…”
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THE ANCIENT MINE OF SERVETTE (SAINT-MARCEL, VAL D'AOSTA, WESTERN ITALIAN ALPS): A MINERALOGICAL, METALLURGICAL AND CHARCOAL ANALYSIS OF FURNACE SLAGS
Published in Archaeometry (01-05-2005)“…The Cu–Fe mining district of Servette is located in the valley of Saint‐Marcel (Val d’Aosta) at about 1800 m a.s.l. in the western Italian Alps. A large…”
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Epitactic magnetite growth in fluid inclusions as driving force for olivine oxidation coupled with hydrogen production at high pressure
Published in Chemical geology (05-07-2023)“…We disclose the crystallisation evolution of magnetite-bearing multiphase inclusions hosted in metamorphic olivine of harzburgites from the Cerro de Almirez…”
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The redox budget of crust-derived fluid phases at the slab-mantle interface
Published in Geochimica et cosmochimica acta (15-07-2017)“…The redox processes taking place in the portion of the mantle on top of the subducting slab are poorly investigated and the redox potential of crust-derived…”
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Carbon-saturated COH fluids in the upper mantle: a review of high-pressure and high-temperature ex situ experiments
Published in European journal of mineralogy (Stuttgart) (26-01-2022)“…High-pressure COH fluids have a fundamental role in a variety of geological processes. Their composition in terms of volatile species can control the solidus…”
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Primary spinel + chlorite inclusions in mantle garnet formed at ultrahigh-pressure
Published in Geochemical perspectives letters (01-08-2017)Get full text
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Sedimentary protolith and high- P metamorphism of oxidized manganiferous quartzite from the Lanterman Range, northern Victoria Land, Antarctica
Published in European journal of mineralogy (Stuttgart) (27-03-2024)“…We investigated the mineral assemblage, mineral and bulk-rock chemistry, and zircon U–Pb age of a manganiferous quartzite layer in the Lanterman Range,…”
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Silicate dissolution boosts the CO 2 concentrations in subduction fluids
Published in Nature communications (20-09-2017)“…Estimates of dissolved CO in subduction-zone fluids are based on thermodynamic models, relying on a very sparse experimental data base. Here, we present…”
Get full text
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Mantle–crust interactions during Variscan subduction in the Eastern Alps (Nonsberg–Ulten zone): geochronology and new petrological constraints
Published in Earth and planetary science letters (30-05-2003)“…We have analyzed the Sm–Nd and Rb–Sr whole-rock and mineral isotope systematics of garnet peridotites and associated eclogites and migmatitic gneisses from the…”
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What the Nonsberg–Ultental Region tells us about subduction zones
Published in Geochimica et cosmochimica acta (01-08-2007)Get full text
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