Search Results - "Lima, Evandro Fernandes de"
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The Mato Perso Conduit System: evidence of silicic magma transport in the southern portion of the Paraná-Etendeka LIP, Brazil
Published in Brazilian journal of geology (01-06-2018)“…The Mato Perso Conduit System is described from a ~ 120 km2 area in south Brazil exposing silicic volcanics of the Paraná-Etendeka LIP. A volcanic succession…”
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Pb isotope geochemistry and reappraisal of Sr-Nd isotopes of the Cerro Morado basic magmatism (Ischigualasto-Villa Union Triassic basin, NW Argentina): Implications for the mantle sources
Published in Brazilian journal of geology (01-01-2018)“…Sr-Nd-Pb isotopic signatures were determined for silica-undersaturated hypabyssal alkaline basic rocks of the Los Baldecitos Formation in the Cerro Morado…”
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Zircon U-Pb geochronology, Sm-Nd and Pb-Pb isotope systematics of Ediacaran post-collisional high-silica Acampamento Velho volcanism at the Tupanci area, NW of the Sul-Rio-Grandense Shield, Brazil
Published in Brazilian journal of geology (01-12-2017)“…We present new U-Pb zircon ages and Sm-Nd-Pb isotopic data for volcanic and hypabyssal acid rocks from the northernmost exposure of the Acampamento Velho…”
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Characterization of subaerial volcanic facies using acoustic image logs: Lithofacies and log-facies of a lava-flow deposit in the Brazilian pre-salt, deepwater of Santos Basin
Published in Marine and petroleum geology (01-01-2019)“…Volcanic rock facies characterization in subsurface log data have always being challenging. Even though considerable types of well logs are acquired, the…”
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Ediacaran Na-alkaline Acampamento Velho volcanism in the Ramada Plateau, southernmost Brazil: Sr–Nd–Pb isotopic data and petrogenetic evolution
Published in Precambrian research (15-06-2021)“…[Display omitted] •Ediacaran volcanic and subvolcanic rocks occur in southernmost Brazil.•Basic to acid magmatism is related to sodic alkaline series.•Mainly…”
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Emplacement dynamics of a complex thick mafic intrusion revealed by borehole image log facies analyses: Implications for fluid migration in the Parnaíba Basin petroleum system, Brazil
Published in Marine and petroleum geology (01-09-2023)“…Sill intrusions may play a significant role in the development of petroleum systems in sedimentary basins by promoting maturation of source rocks, influencing…”
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The role of viscosity in the emplacement of high-temperature acidic flows of Serra Geral Formation in Torres Syncline (Rio Grande do Sul State, Brazil)
Published in Brazilian journal of geology (01-12-2014)“…The acidic flows from Serra Geral Formation in Torres Syncline, Rio Grande do Sul, Brazil, are on the top of a volcanic sequence composed by a complex facies…”
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Neoproterozoic potassic andesitic and lamprophyric rocks in the tupanci area, southernomost Brazil: Petrology and associated mineralization
Published in Journal of South American earth sciences (01-10-2023)“…Au and sulfide mineralizations occur in the Sul-Rio-Grandense Shield, and important occurrences of these metals are reported and attributed to the Lavras do…”
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Petrogenesis of low-Ti dolerite sills from Paraná-Etendeka LIP in Cerro do Coronel region, southernmost Brazil
Published in International geology review (31-05-2023)“…In Large Igneous Provinces (LIPs), sills are a key component of the plumbing system responsible for magma transport through the crust where magma fractionation…”
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Magmatismo basáltico do Andar Alagoas (Bacia de Campos)
Published in Geologia USP. Série Científica (01-08-2017)“…Magmatismo associado com o estágio pré-evaporítico da Bacia de Campos foi estudado a partir de testemunhos de quatro furos de sondagens. Os dados levantados…”
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Post-collisional Ediacaran volcanism in oriental Ramada Plateau, southern Brazil
Published in Journal of South American earth sciences (01-11-2016)“…Ediacaran volcanic sequences in southernmost Brazil are related to intense post-collisional magmatism of the Brasiliano Orogeny. A portion of this volcanism…”
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Lithofacies association and stratigraphy of the Paredão Volcano, Trindade Island, Brazil
Published in Journal of volcanology and geothermal research (15-08-2019)“…A stratigraphic framework can be constructed through lithofacies description and interpretation. The application of this method in volcanic systems is a…”
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Mafic subvolcanic intrusions from the southern Paraná‐Etendeka Large Igneous Province, Brazil: Insights from geochemistry and Sr–Nd–Pb isotopes
Published in Geological journal (Chichester, England) (01-02-2021)“…The Early Cretaceous Paraná‐Etendeka Igneous Province is a predominantly tholeiitic sequence of continental flood basalts and silicic magmatism that is…”
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Post-collisional subvolcanic rhyolites associated with the Neoproterozoic Pelotas Batholith, southern Brazil
Published in Journal of South American earth sciences (01-11-2015)“…Neoproterozoic volcanic and subvolcanic rhyolitic systems in southernmost Brazil are correlated with acid magmatism linked to different petrotectonic…”
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Reoignimbritos e ignimbritos de alto grau do vulcanismo Acampamento Velho, RS: origem e temperatura de formação
Published in Brazilian journal of geology (2011)“…Resumo: A Formação Acampamento Velho é constituída por depósitos vulcânicos neoproterozoicos dominantemente ácidos, emplaçados em condições subaéreas sobre o…”
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Geochemical evidence concerning sources and petrologic evolution of Faial Island, Central Azores
Published in International geology review (01-12-2011)“…Volcanic rocks that make up Faial Island, Central Azores, consist of four volcano-stratigraphic units, with ages between 730 ka and the present. Lavas range…”
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Corpos hipabissais correlacionados à Formação Serra Geral na região do Cerro do Coronel, RS: geologia e petrologia
Published in Geologia USP. Série científica (01-06-2014)Get full text
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Potassic and low- and high-Ti mildly alkaline volcanism in the Neoproterozoic Ramada Plateau, southernmost Brazil
Published in Journal of South American earth sciences (01-03-2005)“…Ramada Plateau Neoproterozoic volcanism represents a portion of the shoshonitic and mildly alkaline magmatism related to postcollisional events of the…”
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