R
Roberto Dall'Agnol
Researcher at Federal University of Pará
Publications - 130
Citations - 4019
Roberto Dall'Agnol is an academic researcher from Federal University of Pará. The author has contributed to research in topics: Craton & Zircon. The author has an hindex of 29, co-authored 121 publications receiving 3383 citations. Previous affiliations of Roberto Dall'Agnol include Federal University of Maranhão & National Council for Scientific and Technological Development.
Papers
More filters
Journal ArticleDOI
Oxidized, magnetite-series, rapakivi-type granites of Carajás, Brazil: Implications for classification and petrogenesis of A-type granites
TL;DR: In this article, the geochemical and petrogenetic properties of A-type granites are discussed with an emphasis on oxidized A-types in order to define their geochemical signatures and to clarify the processes involved in their petrogenesis.
Journal ArticleDOI
An Experimental Study of a Lower Proterozoic A-type Granite from theEastern Amazonian Craton, Brazil
TL;DR: The Jamon granite is representative of the Lower Proterozoic oxidized A-type granites of the eastern part of the Amazonian anorogenic granites are found in several craton.
Journal ArticleDOI
Petrogenesis of the Paleoproterozoic rapakivi A-type granites of the Archean Carajás metallogenic province, Brazil
Roberto Dall'Agnol,Nilson Pinto Teixeira,O. Tapani Rämö,Candido Augusto Veloso Moura,Moacir José Buenano Macambira,Davis Carvalho de Oliveira +5 more
TL;DR: Three rapakivi granites from the Carajas metallogenic province of the eastern Amazonian craton were found in this article, and they were derived from Archean crust.
Journal ArticleDOI
Petrology of the anorogenic, oxidised Jamon and Musa granites, Amazonian Craton: implications for the genesis of Proterozoic A-type granites
Roberto Dall'Agnol,O. Tapani Rämö,Marilia Sacramento de Magalhães,Moacir José Buenano Macambira +3 more
TL;DR: The 1.88 Ga Jamon and Musa granites are magnetite-bearing anorogenic, A-type granites of Paleoproterozoic age.
Journal ArticleDOI
Archean granitoid magmatism in the Canaã dos Carajás area: Implications for crustal evolution of the Carajás province, Amazonian craton, Brazil
Gilmara Regina Lima Feio,Roberto Dall'Agnol,Elton Luiz Dantas,Moacir José Buenano Macambira,João Orestes Schneider Santos,F.J. Althoff,F.J. Althoff,J.E.B. Soares +7 more
TL;DR: In this article, two compositional groups of granitoids were recognized: (1) minor tonalitic-trondhjemitic units which are both geochemically different (Campina Verde and Pedra Branca) or similar to Archean TTGs (Rio Verde) and (2) major granitic units encompassing calc-alkaline (Canaa dos Carajas, Bom Jesus, and Serra Dourada), transitional (Cruzadao) and alkaline (Planalto) granites.