Search Results - "Giustina, Maria Emilia Schutesky Della"
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Dating coeval mafic magmatism and ultrahigh temperature metamorphism in the Anápolis–Itauçu Complex, Central Brazil
Published in Lithos (01-05-2011)“…Dating granulites has always been of great interest because they represent one of the most extreme settings of an orogen. Owing to the resilience of zircon,…”
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Crustal evolution of the northern Brasília Belt basement, central Brazil: A Rhyacian orogeny coeval with a pre-Rodinia supercontinent assembly
Published in Precambrian research (01-02-2016)“…•We examine Paleoproterozoic rocks cropping out in the Neoproterozoic Brasília thrust and fold belt.•Rocks were formed in a Rhyacian orogeny and represent the…”
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The Paleoproterozoic Campinorte Arc: Tectonic evolution of a Central Brazil pre-Columbia orogeny
Published in Precambrian research (01-09-2014)“…•The Campinorte Arc represents a Paleoproterozoic volcanic arc.•The Campinorte Arc metamorphic peak occurred at 2.11–2.08Ga.•We suggest Paleoproterozoic…”
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Geology, petrology and geochronology of the Lago Grande layered complex: Evidence for a PGE-mineralized magmatic suite in the Carajás Mineral Province, Brazil
Published in Journal of South American earth sciences (01-12-2015)“…The Lago Grande and Luanga mafic-ultramafic complexes are part of a cluster of PGE-mineralized layered intrusions located in the Carajás Mineral Province (CMP)…”
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The Limoeiro Deposit; Ni-Cu-PGE sulfide mineralization hosted within an ultramafic tubular magma conduit in the Borborema Province, northeastern Brazil
Published in Economic geology and the bulletin of the Society of Economic Geologists (01-11-2013)“…The Limoeiro deposit, located in a high-grade mobile belt of the Brasiliano orogenic cycle (650-500 Ma), represents one of the few magmatic Ni-Cu(-PGE) sulfide…”
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U–Pb–Hf-trace element systematics and geochronology of zircon from a granulite-facies metamorphosed mafic–ultramafic layered complex in Central Brazil
Published in Precambrian research (01-08-2011)“…► The SMC and the BAC are made up of different layered intrusions. ► Coupled dissolution–reprecipitation processes partially erased zircon U–Pb system. ►…”
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Geology and metamorphism of the neoproterozoic Mangabal Complex: An example of NiCu-PGE mineralized intrusion in the Goiás Magmatic Arc, central Brazil
Published in Journal of South American earth sciences (01-03-2019)“…Inserted in the context of the Goiás Magmatic Arc, the Mangabal Complex represents a partially metamorphosed mafic-ultramafic intrusion, which is part of a…”
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Geology and LA-ICP-MS U–Pb geochronology of the Nova Brasilândia belt, SW Amazonian Craton: New ages, re-evaluation of existing geochronological data, and implications for the evolution of the Sunsás orogen
Published in Journal of South American earth sciences (01-08-2021)“…New geological and LA-ICP-MS U–Pb geochronological data, combined with literature data, are used to characterize more precisely the timing of tectonic events…”
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The São Luís de Montes Belos vermiculite deposit, central Brazil: Hydrothermal mineralization associated with intracontinental strike slip zones
Published in Journal of South American earth sciences (01-12-2018)“…•New mineral chemistry and isotopic data for the ultramafic SLMB Suite, which hosts an important vermiculite deposit.•The SLMBS rocks were affected by…”
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Neoproterozoic magmatism and high-grade metamorphism in the Goiás Massif: New LA-MC-ICMPS U–Pb and Sm–Nd data and implications for collisional history of the Brasília Belt
Published in Precambrian research (01-07-2009)“…This paper presents the first U–Pb and Sm–Nd data for the gneisses of the high-grade Uruaçu Complex, exposed in the northern part of the Neoproterozoic…”
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The 3.5 Ga São Tomé layered mafic-ultramafic intrusion, NE Brazil: Insights into a Paleoarchean Fe-Ti-V oxide mineralization and its reworking during West Gondwana assembly
Published in Precambrian research (15-06-2019)“…•The São Tomé intrusion, crystallized at ∼ 3.5 Ga, is the earliest record of continental crust generation in South America.•An intense fractional…”
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