Results 51 to 60 of about 7,546 (232)
, 2019 Os Stocks Monte Pedral, Boa Esperanca, Santa Maria, Niteroi e Bom Jardim situam-se na parte Norte do Sistema Orogenico Sergipano. Esses cinco corpos sao constituidos por: alcali-feldspato sienito e quartzo alcali-feldspato sienito (Monte Pedral); quartzo
Hiakan Santos Soares +3 more
semanticscholar +1 more source
Geologia USP Série Científica, 2019 O Granito Coimbra representa parte do embasamento da região de Corumbá, Mato Grosso do Sul. Esse corpo é composto das fácies porfirítica rosa, média a grossa cinza e fina rosa.
G. Santos +5 more
semanticscholar +1 more source
Petrologia e Mineralogia - v. 1 [PDF]
, 2018 A produção deste trabalho é independente e surgiu da idéia e colaboração de professores, alunos e ex-alunos do curso de Geologia do Centro de Ciências Exatas, Naturais e da Saúde, da Universidade Federal do Espírito Santo. Estão contidos neste livro 5
Candotti, Calvin da Silva +3 more
core
Angewandte Chemie, Volume 137, Issue 48, November 24, 2025.Chemische Gärten sind selbstorganisierte abiotische Strukturen mit „lebensähnlichen” Formen. Hier zeigen wir, dass solche Prozesse auch nach Zugabe konzentrierter Sulfatlösungen zu festen Calciumsalzen ablaufen und sogenannte Gipsgärten ergeben. Die dafür nötigen Bedingungen sind weitgehend kompatibel mit den geochemischen Verhältnissen auf dem frühen ...
Selina Reigl +5 more
wiley +1 more source
El miocè de la muntanya de Montjuïc : estratigrafia, sedimentologia, petrologia i diagènesi [PDF]
, 1999 La ciutat de Barcelona va néixer apadrinada per dos turons, el Mont Taber i el Mont Jovis. La primera n'ha estat el bressol sobre el qual va créixer; la segona, anomenada actualment Montjuïc, ha subministrat una part important de la matèria prima amb la ...
Gómez-Gras, David +2 more
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Geologia USP. Série Científica, 2020 This article presents geochemical characteristics of the alkaline rocks of Rio Bonito intrusive complex, State of Rio de Janeiro, Brazil, which is constituted mainly by nepheline syenite. The fractional crystallisation of this magma decreases K2O/(Na2O +
Daniel Adelino da Silva +6 more
doaj
Garnet: Witness to the Evolution of Destructive Plate Boundaries [PDF]
, 2013 Thanks to its unique chemical and mechanical properties, garnet records evidence of rocks\u27 paths through the crust at tectonic plate boundaries. The compositions of garnet and coexisting mineral phases permit metamorphic pressure and temperature to be
Caddick, Mark J., Kohn, Matthew J.
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Tectonics, Volume 44, Issue 7, July 2025.Abstract Relamination is closely connected to subduction zones. Despite the numerous high‐P metamorphic belts recognized on Earth, relamination remains a poorly documented process. We present a continental subduction zone where the exhuming high‐P rocks became a relaminant under the upper plate.
Rubén Díez Fernández +7 more
wiley +1 more source
Petrology of Gameleira potassic lamprophyres, São Francisco Craton
Anais da Academia Brasileira de Ciências, 2012 Gameleira lamprophyres are dykes and mafic microgranular enclaves associated with the shoshonitic Gameleira monzonite. This association belongs to the Paleoproterozoic alkaline magmatism from Serrinha nucleus, northeast Brazil.
Jorge Plá Cid +3 more
doaj
DYNA, 2019 Los Esquistos del Silgará consisten en metapelitas, metasemipelitas, rocas cuarzofeldespáticas, rocas carbonatadas puras y rocas calcosilicatadas. El contenido y patrón de REE y las relaciones Zr/Sc, Th/Sc y los altos contenidos de Hf y Zr, apuntan a una
C. García-Ramírez +2 more
semanticscholar +1 more source