Search Results - "Luanna Chmyz"

Genesis of Fe-Ti-(V) Oxide-Rich Rocks by Open-System Evolution of Mafic Alkaline Magmas: The Case of the Ponte Nova Massif, SE Brazil by Amanda Andrade de Souza, Rogério Guitarrari Azzone, Luanna Chmyz, Lina Maria Cetina Tarazona, Fábio Ramos Dias de Andrade, José Vinicius Martins, Excelso Ruberti, Celso de Barros Gomes

“…The formation of Fe-Ti oxides-rich layers is commonly associated with open-system magma chamber dynamics. These processes are widely discussed due to the…”
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Oxygen fugacity of Alto Paranaíba kimberlites and diamond instability: Três Ranchos IV and Limeira I intrusions by Coldebella, Bruna, Azzone, Rogério Guitarrari, Chmyz, Luanna, Ruberti, Excelso, Svisero, Darcy P.

“…Abstract Oxygen fugacity (ƒO2) conditions were established for Três Ranchos IV (TR-IV, diamond-bearing) and Limeira I (LM-I, barren) kimberlite intrusions, in…”
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The Hidden Magmatic Chamber from the Ponte Nova Mafic–Ultramafic Alkaline Massif, SE Brazil: Clues from Clinopyroxene and Olivine Antecrysts by Rogério Guitarrari Azzone, Lina Maria Cetina Tarazona, Mariana Robertti Ambrosio, Vincenza Guarino, Luanna Chmyz, Nicholas Machado Lima, Excelso Ruberti

“…Clinopyroxene and olivine primocrysts in the intrusions of the Ponte Nova mafic–ultramafic alkaline massif (SE Brazil) present several textures and zoning that…”
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Facies architecture and volcanological aspects of silicic rocks from the Palmas plateau, Brazil by Chmyz, Luanna, Vasconcellos, Eleonora Maria Gouvêa, Licht, Otavio Augusto Boni

“…Abstract The nature of the extensive silicic units of the Paraná Igneous Province is still heavily debated. The silicic rocks that outcrop in the Palmas…”
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Mafic macrocrysts of ultrabasic alkaline dikes from the Mantiqueira Range, SE, Brazil: tracers of a complex plumbing system by Silva, Júlio César Lopes da, Azzone, Rogério Guitarrari, Chmyz, Luanna, Guarino, Vincenza, Lima, Nicholas Machado

“…Abstract Macrocryst assemblages of porphyritic alkaline dikes in the Mantiqueira range (SE Brazil) are mainly composed of clinopyroxene and olivine with…”
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The antecryst compositional influence on Cretaceous alkaline lamprophyre dykes, SE Brazil by Menezes, Saulo Gobbo, Azzone, Rogério Guitarrari, Rojas, Gaston Eduardo Enrich, Ruberti, Excelso, Cagliarani, Renata, Gomes, Celso de Barros, Chmyz, Luanna

“…The question of whether the antecryst assemblage affects the bulk composition of lamprophyre dykes, and could be responsible for the compositional zonation…”
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Do carbonatites and alkaline rocks reflect variable redox conditions in their upper mantle source? by Braunger, Simon, Marks, Michael A.W., Wenzel, Thomas, Chmyz, Luanna, Guitarrari Azzone, Rogério, Markl, Gregor

“…•Carbonatites and associated alkaline rocks crystallize from rather oxidized magmas.•Continental alkaline complexes without carbonatites reveal rather reduced…”
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Tracking crustal assimilation processes in kimberlites from the Alto Paranaíba Igneous Province, Brazil: Petrographic and geochemical controls and the role of perovskites by Azzone, Rogério Guitarrari, Pearson, David Graham, Sarkar, Chiranjeeb, Chmyz, Luanna, Shibata, Camila Sayuri Vasconcelos, Luo, Yan, Ruberti, Excelso

“…Anomalous kimberlite varieties from the Cretaceous Alto Paranaíba Igneous Province (APIP, Brazil) do not follow simple classification charts, showing abundant…”
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Olivines as probes into assimilation of silicate rocks by carbonatite magmas: Unraveling the genesis of reaction rocks from the Jacupiranga alkaline‑carbonatite complex, southern Brazil by Chmyz, Luanna, Azzone, Rogério Guitarrari, Ruberti, Excelso, Marks, Michael A.W., Santos, Ticiano José Saraiva dos

“…Assimilation of clinopyroxenite xenoliths by carbonatite magma plays an important role in the Jacupiranga complex, a classical mafic-ultramafic…”
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Petrographic, geochemical, and isotopic evidence of crustal assimilation processes in the Indaiá-II kimberlite, Alto Paranaíba Province, southeast Brazil by Lima, Nicholas M., Azzone, Rogério G., Chmyz, Luanna, Guarino, Vincenza, Ruberti, Excelso, Silva, Simone, Svisero, Darcy P.

“…The Indaiá-I and Indaiá-II intrusions are hypabyssal, small-sized ultrabasic bodies belonging to the Cretaceous magmatism of the Alto Paranaiba Alkaline…”
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Hf-Pb isotope and trace element constraints on the origin of the Jacupiranga Complex (Brazil): Insights into carbonatite genesis and multi-stage metasomatism of the lithospheric mantle by Chmyz, Luanna, Arnaud, Nicolas, Biondi, João Carlos, Azzone, Rogério Guitarrari, Bosch, Delphine

“…The Lower Cretaceous Jacupiranga complex, in the central-southeastern portion of the South American Platform, includes carbonatites in close association with…”
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Ar-Ar ages, Sr-Nd isotope geochemistry, and implications for the origin of the silicate rocks of the Jacupiranga ultramafic-alkaline complex (Brazil) by Chmyz, Luanna, Arnaud, Nicolas, Biondi, João Carlos, Azzone, Rogério Guitarrari, Bosch, Delphine, Ruberti, Excelso

“…The Jacupiranga Complex is one of several Meso-Cenozoic alkaline intrusive complexes along the margins of the intracratonic Paraná Basin in southern Brazil…”
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Isotopic clues tracking the open-system evolution of the Ponte Nova mafic-ultramafic alkaline massif, SE Brazil: The contribution of Pb isotopes by Azzone, Rogério Guitarrari, Chmyz, Luanna, Guarino, Vincenza, Alves, Adriana, Gomes, Celso de Barros, Ruberti, Excelso

“…[Display omitted] •Ponte Nova mafic-ultramafic alkaline massif evolved in an open magmatic system.•New Pb isotope data points to crustal assimilation.•Sr-Nd-Pb…”
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Petrographic, geochemical, and isotopic evidence of crustal assimilation processes in the Indaia Kimberlite, Alto Paranaiba Province, southeast Brazil by Lima, Nicholas M, Azzone, Rogerio G, Chmyz, Luanna, Guarino, Vincenza, Ruberti, Excelso, Silva, Simone, Svisero, Darcy P

“…The Indaiá-I and Indaiá-II intrusions are hypabyssal, small-sized ultrabasic bodies belonging to the Cretaceous magmatism of the Alto Paranaiba Alkaline…”
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