Zobrazeno 1 - 10
of 86
pro vyhledávání: '"E.M. Piccirillo"'
Autor:
A. Rosset, Marcia Ernesto, A. De Min, E.M. Piccirillo, Leila Soares Marques, Moacir José Buenano Macambira, Paul R. Renne
Publikováno v:
Journal of South American Earth Sciences. 24:69-92
The eastern border of the Sao Francisco craton is characterized by widespread Mesoproterozoic (∼1.0 Ga) tholeiitic dykes and minor analogues of Early Cretaceous age (∼130 Ma). The Mesoproterozoic dykes (Salvador, Olivenca, Espinhaco, Diamantina)
Publikováno v:
Earth-Science Reviews. 62:365-397
A comparative study of Precambrian and Mesozoic tholeiitic basalt magmatism from the South American Platform reveals that both Late Archaean–Proterozoic and Mesozoic tholeiites are characterized by high TiO2 (>2 wt.%; HTi) and low TiO2 (
Publikováno v:
Contributions to Mineralogy and Petrology. 139:503-508
The crystal chemistry of six clinopyroxenes enclosed in protogranular spinel-peridotite mantle xenoliths from Lake Nji (Cameroon, W Africa) was studied by means of single-crystal X-ray diffraction and electron microprobe. These spinel-peridotite xeno
Publikováno v:
Mineralogical Magazine. 61:423-439
Two C2/c pyroxene suites from sodic alkaline rocks (Basanite-Phonolite: B-Ph and Alkali basalt-Trachyphonolite: AB-T) belonging to the McMurdo Volcanic Group (Mt. Melbourne province and Mt. Erebus, Antarctica) were investigated by single-crystal X-ra
Publikováno v:
Earth and Planetary Science Letters. 144:199-211
The Ponta Grossa Dike Swarm (PGDS) occurs in a NW-trending, 200 km wide zone exposed just east of the Parana´basin in southeastern Brazil. The predominantly basaltic dikes intrude crystalline basement, Paleozoic-Mesozoic sediments, and (rarely) flow
Autor:
Eduardo A. A. Morais, Lucia Civetta, Piero Comin-Chiaramonti, Antonio Alberti, E.M. Piccirillo, Giuliano Bellieni
Publikováno v:
European Journal of Mineralogy. 4:597-604
The Angolan Mesozoic volcanic suites are concentrated along the continental margin and are characterized by voluminous sheet-like acid rock-types overlying stratoid tholeiitic basalts. The acid volcanics closely correspond in terms of stratigraphy, p
Autor:
Paolo Censi, Gabriela Demarchi, Ana Maria Clerici Castillo, Riccardo Petrini, Lucia Civetta, Piero Comin-Chiaramonti, Peter Bitschene, Celso B. Gomes, E.M. Piccirillo, Angelo De Min, Giuliano Bellieni, Juan Carlos Velazquez
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Publikováno v:
Chemical Geology: Isotope Geoscience section. 86:225-237
107 rock samples from the Parana plateau, southern Brazil (86 tholeiites and 21 various rock-types from the Precambrian crystalline basement) were measured for their oxygen isotopic composition. Both the crustally uncontaminated tholeiites from the N
Autor:
Giuliano Bellieni, Adolpho José Melfi, Riccardo Petrini, Piero Comin-Chiaramonti, P. Zantadeschi, J.P.P. Pinese, A. De Min, G. Cavazzini, E.M. Piccirillo
Publikováno v:
Chemical Geology. 89:19-48
The Lower Cretaceous dykes of the Ponta Grossa Arch, the most important dyke swarms in Brazil, are associated with the flood basalts and rare acid flows of the northern Parana basin. The Ponta Grossa (PG) dykes are formed by two-pyroxene tholeiites a
Autor:
Marcia Ernesto, Giuliano Bellieni, Leila Soares Marques, Andrea Marzoli, E.M. Piccirillo, Angelo De Min, Paul R. Renne
Publikováno v:
The Central Atlantic Magmatic Province: Insights from Fragments of Pangea
Washington: American Geophysical Union, 2003
info:cnr-pdr/source/autori:DE MIN A., PICCIRILLO E.M., MARZOLI A., BELLIENI G., RENNE P., ERNESTO M., MARQUES L.S/titolo:The central Atlantic magmatic province (CAMP) in Brazil: Petrology, geochemistry, 40Ar%2F39Ar ages, paleomagnetism and geodynamic implications./titolo_volume:/curatori_volume:/editore: /anno:2003
Washington: American Geophysical Union, 2003
info:cnr-pdr/source/autori:DE MIN A., PICCIRILLO E.M., MARZOLI A., BELLIENI G., RENNE P., ERNESTO M., MARQUES L.S/titolo:The central Atlantic magmatic province (CAMP) in Brazil: Petrology, geochemistry, 40Ar%2F39Ar ages, paleomagnetism and geodynamic implications./titolo_volume:/curatori_volume:/editore: /anno:2003
The CAMP tholeiitic magmatism in Brazil (mean 40 Ar/ 39 Ar age of 199.0±2.4 Ma) occurs on the continental margin to ca. 2,000 km into the South American platform, near the boundary between the ancient terrains of the Amazonia craton and Proterozoic/
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b497afa55d121ec810e280bfb93046e
http://hdl.handle.net/11577/2455210
http://hdl.handle.net/11577/2455210