[HTML][HTML] A global review on agpaitic rocks
MAW Marks, G Markl - Earth-Science Reviews, 2017 - Elsevier
Peralkaline igneous rocks are defined by a molar (Na+ K)/Al ratio> 1 and are subdivided into
miaskitic and agpaitic varieties depending on their mineralogy. In the more common …
miaskitic and agpaitic varieties depending on their mineralogy. In the more common …
[HTML][HTML] Integrating geoheritage into the management of protected areas: A case study of the Itatiaia National Park, Brazil
VC Mucivuna, MGM Garcia, E Reynard… - International Journal of …, 2022 - Elsevier
Abstract The International Union for Conservation of Nature (IUCN) has created many
initiatives to integrate geodiversity and geoheritage into the management of protected areas …
initiatives to integrate geodiversity and geoheritage into the management of protected areas …
The REE- and HFSE-bearing phases in the Itatiaia alkaline complex (Brazil) and geochemical evolution of feldspar-rich felsic melts
Abstract The Late Cretaceous Itatiaia complex is made up of nepheline syenite grading to
peralkaline varieties, quartz syenite and granite, emplaced in the metamorphic rocks of the …
peralkaline varieties, quartz syenite and granite, emplaced in the metamorphic rocks of the …
The magmatic rifting of Santos Basin: aeromagnetic mapping of dykes, terranes and marginal structures and the interplay between tectonism and volcanism
We present a new magnetic map integrating continental and oceanic features at the Santos
Basin, in order to investigate the connection between onshore and offshore tectonics and …
Basin, in order to investigate the connection between onshore and offshore tectonics and …
Alkaline magmatism in the Ponta Grossa Arch, SE Brazil: a review
The southern side of the Ponta Grossa Arch (PGA), a prominent NW-SE-trending tectonic
feature extending over 600 km, was the site of important alkaline and alkaline-carbonatitic …
feature extending over 600 km, was the site of important alkaline and alkaline-carbonatitic …
[HTML][HTML] Nepheline syenites to syenites and granitic rocks of the Itatiaia Alkaline Massif, Southeastern Brazil: new geological insights into a migratory ring Complex
The Itatiaia Alkaline Massif comprises some of the largest meso-cenozoic alkaline igneous
occurrences in Brazil, covering over 215 km2 between the states of Minas Gerais and Rio de …
occurrences in Brazil, covering over 215 km2 between the states of Minas Gerais and Rio de …
The origin of the Daly gap by fractional crystallization in a transcrustal plumbing system in the Passa Quatro alkaline complex (SE Brazil)
JCL da Silva, S de Castro Valente… - International Geology …, 2024 - Taylor & Francis
The surface gap of tephriphonolite compositions in the Passa Quatro alkaline complex, in
SE Brazil, is attributed to non-buoyancy of these high viscosity intermediate compositions …
SE Brazil, is attributed to non-buoyancy of these high viscosity intermediate compositions …
Slope position controls prescribed fire effects on soil: a case study in the high-elevation grassland of Itatiaia National Park
APP Oliveira, EC Silva, RAT Marcondes… - Revista Brasileira de …, 2023 - SciELO Brasil
There is a need for greater knowledge about the medium-and long-term effects of prescribed
fire management on soil in ecosystems prone to wildfires and more vulnerable to climate …
fire management on soil in ecosystems prone to wildfires and more vulnerable to climate …
Magmatism and fenitization in the Cretaceous potassium-alkaline-carbonatitic complex of Ipanema São Paulo State, Brazil
The Ipanema alkaline-carbonatitic complex is part of the Meso-Cenozoic alkaline
magmatism located within the southeastern part of the Brazilian Platform. Drill-core and field …
magmatism located within the southeastern part of the Brazilian Platform. Drill-core and field …
Trace element composition of parental magmas from mafic–ultramafic cumulates determined by in situ mineral analyses: The Juquiá mafic–ultramafic alkaline …
Major and trace element analyses of relict cores of cumulus minerals (olivine and
clinopyroxene) from primitive rocks of the Juquiá mafic–ultramafic alkaline–carbonatite …
clinopyroxene) from primitive rocks of the Juquiá mafic–ultramafic alkaline–carbonatite …