Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Felipe P. Leitzke"'
Autor:
André Abreu Martins, Edinei Koester, Leandro Rufino Rosalino, Ronaldo Bernardo, Felipe Padilha Leitzke
Publikováno v:
Química Nova, Vol 46, Iss 4, Pp 343-350 (2023)
Evaluation studies contribute to the identification of parameters that can affect the accuracy and precision of analytical methods. This study describes the analysis of δ18O and δ2H in water samples by the equilibrium method at the Isotope Geology
Externí odkaz:
https://doaj.org/article/e925c9b61b574e76889c945421d2dd7d
Autor:
Larissa Colombo Carniel, Rommulo Vieira Conceição, Carlos Augusto S. Provenzano, Andrea Sander, Felipe Padilha Leitzke, Andrea Brum da Silva, Jasper Berndt, Stephan Klemme
Publikováno v:
Brazilian Journal of Geology, Vol 53, Iss 3 (2023)
Abstract The Alfeu-I lamproite is one of the few alkaline rock occurrences in the South of Brazil that represents the alkaline event related to the South Atlantic opening and the enormous magmatic activity that formed the Paraná basalts. Alfeu-I lam
Externí odkaz:
https://doaj.org/article/d8a3b8e2408a48d8b14c2cc746f5cb65
Autor:
Aline Celuppi Wegner, Felipe Padilha Leitzke, Carla Cristine Porcher, Rommulo Vieira Conceição, Marcia Elisa Boscato Gomes, Daniel Grings Cedeño, Marcio Roberto Wilbert de Souza
Publikováno v:
Brazilian Journal of Geology, Vol 51, Iss 3 (2021)
Abstract The analysis of trace elements (TE) in geological materials is a valuable tool to understand geological processes, including studies in geochemistry and petrology. Among the methods applied to determine TE, Laser Ablation Inductively Coupled
Externí odkaz:
https://doaj.org/article/8b633cf74aed4d7eb2f297a375f80b4e
Autor:
Felipe Padilha Leitzke, Aline Celuppi Wegner, Carla Cristine Porcher, Natália Isabel Malüe Vieira, Jasper Berndt, Stephan Klemme, Rommulo Vieira Conceição
Publikováno v:
Brazilian Journal of Geology, Vol 51, Iss 2 (2021)
Abstract Trace elements provide crucial information about the origin and evolution of the Earth. One common issue regarding their analyses is the reduced analyte recovery during hot plate acid digestion for some geological samples. To overcome this,
Externí odkaz:
https://doaj.org/article/ea5149620018420ea623f2334d9d317d
Autor:
Rafael Gordilho Barbosa, Alanielson Ferreira, Felipe P. Leitzke, Thaiane N. Dos Santos, Rommulo V. Conceição, Hervé Martin
Publikováno v:
International Geology Review. 65:1541-1557
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::529a74af5de9672118febb93a0dc1647
https://doi.org/10.1080/00206814.2022.2098542
https://doi.org/10.1080/00206814.2022.2098542
Autor:
Laura Jennifer Anabel Rzehak, Sebastian Kommescher, Liam Hoare, Florian Kurzweil, Peter Sprung, Felipe P. Leitzke, Raúl O. C. Fonseca
Publikováno v:
Contributions to Mineralogy and Petrology. 177
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1b5f7620b3a6a126d578f2732b85ee2
https://doi.org/10.1007/s00410-022-01953-2
https://doi.org/10.1007/s00410-022-01953-2
Autor:
Chris Ballhaus, Felipe P Leitzke, Raúl O C Fonseca, Thorsten Nagel, Dmitri Kuzmin, Ahmed El Goresy
Publikováno v:
Journal of Petrology. 63
It is not well known which chemical differentiation pathways basaltic melts will take when they are iron metal saturated. Thermodynamically, the pathway seems predictable. So long as Fe metal is a stable liquidus phase and relative oxygen fugacity (f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b482d18c22e25eb5f94d967d1c2866b1
https://doi.org/10.1093/petrology/egac067
https://doi.org/10.1093/petrology/egac067
Autor:
Laura J. A. Rzehak, Sebastian Kommescher, Liam Hoare, Florian Kurzweil, Peter Sprung, Felipe P. Leitzke, Raúl O. C. Fonseca
Publikováno v:
Contributions to Mineralogy and Petrology. 177
In terrestrial magmas titanium is predominantly tetravalent (Ti4+), in contrast, lunar magmas are more reduced (IW-1) and hence approximately 10% of their bulk Ti content is trivalent (Ti3+). Changes in oxidation state and coordination number are bot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::322ad692e84fac2e9b02b34a727358fa
https://doi.org/10.1007/s00410-022-01947-0
https://doi.org/10.1007/s00410-022-01947-0
Publikováno v:
Revista Brasileira de Cartografia, Vol 68, Iss 9 (2016)
O município de Porto Alegre é altamente suscetível a movimentos de massa, os quais ocasionam perdas econômicas, sociais e ambientais. Com o intuito de mitigar esses impactos e compreender melhor esses processos torna-se necessário mapear as áre
Externí odkaz:
https://doaj.org/article/cbb9be27e2f34f8d81f31d7089fb3ee9
Autor:
Carlos Augusto Sommer, Felipe Padilha Leitzke, Evandro Fernandes de Lima, Carla Joana Santos Barreto, Jean Michel Lafon, Vinicius Matté, Ruy Paulo Philipp, Rommulo Vieira Conceição, Miguel Ângelo Stipp Basei
Publikováno v:
Brazilian Journal of Geology, Vol 47, Iss 4, Pp 545-560
ABSTRACT: 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 Formation in the NW portion of the Sul-Rio-Grandense Shield, Brazil. The first volcani
Externí odkaz:
https://doaj.org/article/f7331f05ebf0490da957203a429fc2ec