Výsledky vyhledávání - "WILSON WILDNER"

Akademický článek

A micro-analytical approach to partition coefficients in plagioclase and clinopyroxene of basaltic sills in Serra Geral Formation, Paraná Basin, Brazil

Autor: Leonardo Cardoso Renner, Léo Afraneo Hartmann, Wilson Wildner, Hans-Joachim Massonne, Thomas Theye

Publikováno v: Brazilian Journal of Geology, Vol 41, Iss 2, Pp 263-289

Abstract: In the present study, detailed micro-analytical data (major and trace elements) in minerals from sills of Serra Geral Formation represents the first attempt to evaluate the partition coefficient of Sc, Ti, V, Cr, Co, Ni, Cu, Zn, Rb, Sr, Y,

Externí odkaz: https://doaj.org/article/6f4c1eaeaef445a7a0426ca46a93c73e

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Chemistry of chromium spinel in high-Mg rocks from the Morungava Intrusion, Cretaceous Paraná Igneous Province, southernmost Brazil

Autor: David Debruyne, Léo Afraneo Hartmann, Viter Magalhães Pinto, Thomas Theye, Hans-Joachim Massonne, Wilson Wildner

Publikováno v: Mineralogy and Petrology. 113:765-782

Mafic-ultramafic intrusions within continental flood basalt terrains are frequently associated with Cu-Ni-PGE mineralization. This study aims to constrain the petrogenesis of early crystal phases in a promising exploration target, the Morungava mafic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ad6578e66acbfb886cb83d0029f49d6d
https://doi.org/10.1007/s00710-019-00677-9

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Zircon U–Pb geochronology from the Paraná bimodal volcanic province support a brief eruptive cycle at ~135Ma

Autor: Léo Afraneo Hartmann, Neal J. McNaughton, Viter Magalhães Pinto, Wilson Wildner, João Orestes Schneider Santos

Publikováno v: Chemical Geology. 281(1-2):93-102

Ion microprobe U–Pb isotopic data on zircons from the Parana magmatic province are presented from one tholeiitic (high-Ti Pitanga type) and three felsic volcanic rocks from the low-Ti Palmas and high-Ti Chapeco types. Igneous zircons from the four

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08db2cf095ce427ce6ec149d21c957ed

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Sequential opening and filling of cavities forming vesicles, amygdales and giant amethyst geodes in lavas from the southern Paraná volcanic province, Brazil and Uruguay

Autor: Léo Afraneo Hartmann, Juliana Pertille, Karine da Rosa Arena, Wilson Wildner, Hans-Joachim Massonne, Sandro Kucera Duarte, Lauren da Cunha Duarte, Leonardo Manara Rosenstengel, Viter Magalhães Pinto, Magda Bergmann, Thomas Theye, Cassiana Roberta Lizzoni Michelin, Maria Luiza Correa da Camara Rosa, Eduardo Guimarães Barboza

Publikováno v: International Geology Review. 54:1-14

The opening and filling of cavities in rocks are the major processes related to the generation and sealing of porosity in ore deposits. This study documents three stages of opening and filling of vesicles and geodes in the basalts and rhyodacites of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1c6791c0d26829dfa01388717c583b3b
https://doi.org/10.1080/00206814.2010.496253

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Geochemical and scintillometric characterization and correlation of amethyst geode-bearing Paraná lavas from the Quaraí and Los Catalanes districts, Brazil and Uruguay

Autor: Laura Costa Martins, Léo Afraneo Hartmann, Lauren da Cunha Duarte, Norberto Lessa Dias, Karine da Rosa Arena, Juliana Pertille, Sandro Kucera Duarte, Wilson Wildner

Publikováno v: Geological Magazine. 147:954-970

Geochemical studies of the six lowermost lava flows of the Cretaceous Serra Geral Formation (Paraná volcanic province) in Quaraí (Brazil) and Artigas (Uruguay) were combined with flow-by-flow field studies of structures and scintillometric profiles

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::336af3bf3a48e8961421379d4bafaf6a
https://doi.org/10.1017/s0016756810000592

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Epigenetic hydrothermal origin of native copper and supergene enrichment in the Vista Alegre district, Paraná basaltic province, southernmost Brazil

Autor: Léo Afraneo Hartmann, Wilson Wildner, Viter Magalhães Pinto

Publikováno v: International Geology Review. 53:1163-1179

Native copper is widespread in the Lower Cretaceous Parana basaltic province, southern Brazil, both as films in fractures and as massive balls in amygdules. The focus of this investigation is on the large concentration of occurrences (n = 85) that fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1f8ad88c29fca1182e17c8a0ed4004e9
https://doi.org/10.1080/00206810903464547

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