Search Results - "Gervasoni, Fernanda"
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Experimental constraints on mantle metasomatism caused by silicate and carbonate melts
Published in Lithos (01-06-2017)“…Metasomatic processes are responsible for many of the heterogeneities found in the upper mantle. To better understand the metasomatism in the lithospheric…”
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Zircon saturation in silicate melts: a new and improved model for aluminous and alkaline melts
Published in Contributions to mineralogy and petrology (01-03-2016)“…The importance of zircon in geochemical and geochronological studies, and its presence not only in aluminous but also in alkaline rocks, prompted us to think…”
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The effect of fluorine on the stability of wadsleyite: Implications for the nature and depths of the transition zone in the Earth's mantle
Published in Earth and planetary science letters (15-01-2018)“…The Earth's mantle contains significant amounts of volatile elements, such as hydrogen (H), carbon (C) and the halogens fluorine (F), chlorine (Cl) and bromine…”
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Pristine helium from the Karoo mantle plume within the shallow asthenosphere beneath Patagonia
Published in Nature communications (30-07-2024)“…Mantle xenoliths usually represent fragments derived from the depleted and degassed lithospheric mantle with 3 He/ 4 He isotope ratios (6 ± 1 R A ) lower than…”
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The origin of Patagonia revealed by Re-Os systematics of mantle xenoliths
Published in Precambrian research (01-06-2017)“…[Display omitted] •Patagonia is considerably older than previously known (∼2.1vs ∼0.6Ga).•Southern Patagonia and the Malvinas Islands form a single Proterozoic…”
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Partial melting and subduction-related metasomatism recorded by geochemical and isotope (He-Ne-Ar-Sr-Nd) compositions of spinel lherzolite xenoliths from Coyhaique, Chilean Patagonia
Published in Gondwana research (01-10-2021)“…[Display omitted] •We report the first subduction-related helium composition of Patagonian peridotites.•Cryptic metasomatism is observed in anhydrous…”
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Slab-derived components in the subcontinental lithospheric mantle beneath Chilean Patagonia: Geochemistry and Sr–Nd–Pb isotopes of mantle xenoliths and host basalt
Published in Lithos (01-11-2017)“…In subduction zones, ultramafic xenoliths hosted in alkaline basalts can yield significant information about the role of potential slab-derived components in…”
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Noble gas composition of subcontinental lithospheric mantle: An extensively degassed reservoir beneath Southern Patagonia
Published in Earth and planetary science letters (15-09-2016)“…Patagonia, in the Southern Andes, is one of the few locations where interactions between the oceanic and continental lithosphere can be studied due to…”
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Tonian Continental Arc Magmatism of the Porongos Complex, Dom Feliciano Belt, Southern Brazil
Published in Geologia USP. Série Científica (17-08-2023)“…This study provides new information on the deformation, metamorphism, and tectonic setting of the metavolcanic rocks of the southern portion of the Porongos…”
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Mantle Xenoliths from Huanul Volcano (Central-West Argentina): A Poorly Depleted Mantle Source under Southern Payenia
Published in Geosciences (Basel) (01-04-2022)“…Huanul is a shield volcano with several lava flows hosting mantle xenoliths erupted during the Pleistocene (0.84 ± 0.05 Ma). It is located in the southern part…”
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Trace element mapping of high-pressure, high-temperature experimental samples with laser ablation ICP time-of-flight mass spectrometry – Illuminating melt-rock reactions in the lithospheric mantle
Published in Lithos (01-01-2020)“…Laser ablation inductively coupled plasma time-of-flight mass spectrometry (LA-ICP-TOFMS) is a fast, relatively high-spatial resolution method which allows to…”
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Mesoproterozoic depleted spinel peridotites metasomatized by high-K hydrous melt in the Patagonian back-arc
Published in Chemical geology (20-12-2024)“…Here we report the first investigation of spinel-bearing mantle xenoliths from Los Gemelos volcano, Canquel Plateau, Patagonia. They are highly-depleted…”
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Destruction of the Lithosphere beneath the SW Margin of the São Francisco Craton Evidenced by Refertilized and Deformed Mantle Xenoliths
Published in Journal of petrology (01-09-2024)“…Abstract The destruction of the cratonic root has been documented for multiple cratons worldwide and is characterized by severe lithospheric thinning,…”
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Mantle metasomatism and refertilization beneath the SW margin of the São Francisco Craton, Brazil
Published in Lithos (01-07-2023)“…A suite of kimberlite-hosted mantle xenoliths from the Catalão region, southwestern margin of the São Francisco Craton (SFC), Brazil, consists of spinel…”
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Geochemistry and geodynamic implications on the source of Paraná-Etendeka Large Igneous Province evidenced by the 128 Ma Rosário-6 kimberlite, southern Brazil
Published in Lithos (01-03-2019)“…The Rosário-6 is a non-diamondiferous hypabyssal kimberlite located above the Rio de la Plata craton and near the south-eastern edge of the Paraná Basin, in…”
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Metallic elements and isotope of Pb in wet precipitation in urban area, South America
Published in Atmospheric research (01-04-2012)“…The atmosphere of urban areas has been the subject of many studies to show the atmospheric pollution in large urban centers. By quantifying wet precipitation…”
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Characterization of wet precipitation by X-ray diffraction (XRD) and scanning electron microscopy (SEM) in the metropolitan area of Porto Alegre, Brazil
Published in Journal of hazardous materials (15-11-2009)“…The purpose of this study is to assess the composition of wet precipitation in three sites of the metropolitan area of Porto Alegre. Besides the variables…”
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