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| Brotzu, P., Gomes, C.B., Melluso, L., Morbidelli, L., Morra, V., Ruberti, E. (1997) Petrogenesis of coexisting SiO2-undersaturated to SiO2-oversaturated felsic igneous rocks: The alkaline complex of Itatiaia, southeastern Brazil. Lithos, 40 (2) 133-156 doi:10.1016/s0024-4937(97)00007-8 | Journal (article/letter/editorial) | | felsic igneous rocks: The alkaline complex of
Itatiaia, southeastern Brazil
P. Brotzu a, C.B. Gomes b...Napoli, Italy
b Instituto de Geocihbas, Universidade de Skio Paula, Siio Paula, Brazil
’ Dipam’mento di Scienze...December 1996; accepted 1 April 1997
The Itatiaia aWine complex is a Late Cretaceous intrusion (72 Myr)...arranged concentrically, with the core of the complex being
formed by SiO,-oversaturated syenites (with...significant lithotype, the potassic affinity of the Itatiaia complex, and the relatively high Sr-isotopic ratios | 👁 Image
| | Journal (article/letter/editorial) | | (1995) 425-440
Late Cretaceous alkaline complexes, southeastern Brazil:
Paleomagnetism and geochronology...Kawashita ’
a Nkleo
de Pesquisa em Geoquimica e Geofisica da Litosfera da Universidade de S~O Paul0 (NVPEGEL)...Paula, Brazil
b Departamento de Geofisica, Institute Astrokmico
e Geofiico da Universidade de Silo Paul0...Paula, Brazil
’ Centro de Pesquisas Geocronolbgicas, Institute de Geoci&cias da Universidade de S~O Paula...Silo
Paulo, Brazil
Received 4 May 1995; accepted 17 July 1995
Abstract
Late Cretaceous alkaline rocks from | 👁 Image
| Melluso, Leone, Guarino, Vincenza, Lustrino, Michele, Morra, Vincenzo, de' Gennaro, Roberto (2017) TheREE-and HFSE-bearing phases in the Itatiaia alkaline complex (Brazil) and geochemical evolution of feldspar-rich felsic melts. Mineralogical Magazine, 81 (2) 217-250 doi:10.1180/minmag.2016.080.122 | Journal (article/letter/editorial) | | REE- and HFSE-bearing phases in the Itatiaia alkaline
complex (Brazil) and geochemical evolution of feldspar-rich...MICHELE LUSTRINO2,3, VINCENZO MORRA1 AND ROBERTO DE’ GENNARO1
1
Dipartimento di Scienze della Terra...Jason Harvey]
ABSTR ACT
The Late Cretaceous Itatiaia complex is made up of nepheline syenite grading to...quartz
syenite and granite, emplaced in the metamorphic rocks of the Serra do Mar, SE Brazil. The nepheline...The major- and trace-element composition of the
Itatiaia rocks have variations linked to the amount of | 👁 Image
| | Report (article/chapter) | | Universidade do Estado do Rio de Janeiro (DGRG/UERJ), Rio de Janeiro, Brazil
2
Programa de Posgraduação, Faculdade...Faculdade de Geologia, UERJ, Universidade do Estado do Rio de
Janeiro, Rio de Janeiro, Brazil
*Corresponding...However, rocks ascribed to the Cabo Granite (104 Ma) are observed in
NE Brazil. In West Africa, sparse Aptian–Albian...Brazilian margin, an east–west alkaline magmatic trend is observed from
Poços de Caldas to Cabo Frio, comprising...the following volcanic islands are observed:
the Rio Grande Rise (88–86 Ma), Abrolhos (54–44 Ma), the | 👁 Image
| Guarino, Vincenza, Gennaro, Roberto de', Melluso, Leone, Ruberti, Excelso, Azzone, Rogério G. (2019) The Transition from Miaskitic to Agpaitic Rocks, as Highlighted by the Accessory Phase Assemblages in the Passa Quatro Alkaline Complex (SouthEastern Brazil) The Canadian Mineralogist, 57 (3) 339-361 doi:10.3749/canmin.1800073 | Journal (article/letter/editorial) | | THE PASSA QUATRO ALKALINE COMPLEX
(SOUTHEASTERN BRAZIL)
VINCENZA GUARINO§, ROBERTO DE’ GENNARO, AND LEONE...Instituto de Geociências, Universidade de São Paulo, Rua do Lago 562, 05508-080 São Paulo, Brazil
ABSTRACT...ABSTRACT
The Passa Quatro alkaline complex is one of the main intrusions in the Serra do Mar Cretaceous...Cretaceous to Paleogene Igneous
Province of southeastern Brazil. It is composed mainly of nepheline syenites and...three neighboring complexes of Itatiaia, Passa Quatro, and Poços de Caldas have significant differences | 👁 Image
| Gomes, Celso de Barros, Azzone, Rogério Guitarrari, Rojas, Gaston Eduardo Enrich, Guarino, Vincenza, Ruberti, Excelso (2021) Agpaitic Alkaline Rocks in Southern Brazilian Platform: A Review. Minerals, 11 (9) 934 doi:10.3390/min11090934 | Journal (article/letter/editorial) | | minerals
Review
Agpaitic Alkaline Rocks in Southern Brazilian Platform:
A Review
Celso de Barros Gomes 1, *... University of São Paulo, São Paulo 05508-080, Brazil; rgazzone@usp.br (R.G.A.);
gastonenrich@usp.br...occurrences located in southern Brazil
and at the border between Brazil and Paraguay. All the Brazilian...most significant occurrence
is Poços de Caldas, the largest alkaline massif in South America. In general...ones. However, these
associations are indeed more complex in terms of composition, with accessory phases | 👁 Image
| Hurai, Vratislav, Huraiová, Monika, Gajdošová, Michaela, Konečný, Patrik, Slobodník, Marek, Siegfried, Pete R. (2018) Compositional variations of zirconolite from the Evate apatite deposit (Mozambique) as an indicator of magmatic-hydrothermal conditions during post-orogenic collapse of Gondwana. Mineralogy and Petrology, 112 (3) 279-296 doi:10.1007/s00710-017-0538-7 | Journal (article/letter/editorial) | | chemical composition of zirconolites reflects
the complex history of the Evate deposit. Compositional
and...relatively abundant in various silica-undersaturated alkaline rocks, namely carbonatite (Borodin et al.
1956;...et al. 2000; Melusso et al. 2017), potassic
lava (De Hoog and van Bergen 2000), lamproite (Carlier
and...1980); Jacupiranga, Brazil (Bellatreccia et al. 1999); Araxá,
Minas Gerais, Brazil (Mariano 1993 in Williams...Chilwa Island,
Malawi (Platt et al. 1987); Itatiaia, Brazil (Melusso et al. 2017);
Laacher See, Germany | 👁 Image
| Starikova, Anastasia E., Bazarova, Ekaterina P., Savel’eva, Valentina B., Sklyarov, Eugene V., Khromova, Elena A., Kanakin, Sergei V. (2019) Pyrochlore-Group Minerals in the Granite-Hosted Katugin Rare-Metal Deposit, Transbaikalia, Russia. Minerals, 9 (8) 490 doi:10.3390/min9080490 | Journal (article/letter/editorial) | | minerals
Article
Pyrochlore-Group Minerals in the Granite-Hosted
Katugin Rare-Metal Deposit, Transbaikalia...main raw phases in granitic rocks of the Katugin
complex-ore deposit that stores Nb, Ta, Y, REE, U, Th,...pyrochlore-group minerals; fluornatropyrochlore; alkaline granites; Katugin rare-metal
deposit; East Transbaikalia...found in such lithologies as nepheline
syenite, alkaline gabbro and granitoids, pegmatite, and in albite... the Strange Lake granite (Canada) [16], and the Halzdan-Buregteg alkaline granite
(West Mongolia) [17] | 👁 Image
| Lorenz, Melanie, Altenberger, Uwe, Trumbull, Robert B., Lira, Raúl, López de Luchi, Mónica, Günter, Christina, Eidner, Sascha (2019) Chemical and textural relations of britholite- and apatite-group minerals from hydrothermal REE mineralization at the Rodeo de los Molles deposit, Central Argentina. American Mineralogist, 104 (12) 1840-1850 doi:10.2138/am-2019-6969 | Journal (article/letter/editorial) | | from
hydrothermal REE mineralization at the Rodeo de los Molles deposit, Central Argentina
Melanie Lorenz1...Altenberger1, Robert B. Trumbull2, Raúl Lira3,
Mónica López de Luchi4, Christina Günter1, and Sascha Eidner5
Institute...Germany
3
CONICET, Museo de Mineralogía y Geología “Drive A. Stelzner,” Facultad de Ciencias Exactas, Físicas... X5000JJC Córdoba, Argentina
4
IGNEIS, Instituto de Geocronología y Geología Isotópica, CONICET, University...P)O4]3(OH,F) are widespread rare-earth minerals in alkaline rocks and their associated metasomatic zones, | 👁 Image
| | Journal (article/letter/editorial) | | THE ORIGIN OF PEGMATITES IN THE LARVIK PLUTONIC COMPLEX,
NORWAY
ØYVIND SUNDE§ AND HENRIK FRIIS
Natural...element-bearing mineral in alkaline pegmatites occurring in the
Permian Larvik Plutonic Complex in the Oslo Rift...composition of wöhlerite from pegmatites across the complex has been studied as a potential
geochemical proxy...hypersolvus
monzonite) and nepheline syenite of the complex, but the genetic relationship between the pegmatites...wöhlerite were sampled from different sections of the complex to investigate whether or
not compositional variations | 👁 Image
| Gronen, Lars Hans, Sindern, Sven, Katzmarzyk, Janet Lucja, Bormann, Udo, Hellmann, André, Wotruba, Hermann, Meyer, F. Michael (2019) Mineralogical and Chemical Characterization of Zr-REE-Nb Ores from Khalzan Buregtei (Mongolia)—Approaches to More Efficient Extraction of Rare Metals from Alkaline Granitoids. Minerals, 9 (4) 217 doi:10.3390/min9040217 | Journal (article/letter/editorial) | | More Efficient Extraction
of Rare Metals from Alkaline Granitoids
Lars Hans Gronen 1, * , Sven Sindern...April 2019; Published: 5 April 2019
Abstract: Alkaline rocks are worldwide observed as hosts for rare...deposits; alkaline rocks; automated mineralogy; Khalzan Buregtei
1. Introduction
Alkaline granite and syenite...element composition of alkaline rocks is in line with elevated abundances of complex
and rare HFSE minerals...reasons [4]. As a response to this situation, alkaline granite and
syenite complexes have also come into | 👁 Image
| Barbosa, Sofia, Dias, António, Durão, Diogo, Grilo, José, Baptista, Gonçalo, Cagiza, Jonhsman, Pessanha, Sofia, Simão, Joaquim, Almeida, José (2022) Exploring High-Resolution Chemical Distribution Maps of Incompatible and Scarce Metals in a Nepheline Syenite from the Massif of “Serra de Monchique” (Portugal, Iberian Peninsula) Minerals, 12 (9) 1178 doi:10.3390/min12091178 | Journal (article/letter/editorial) | | in a Nepheline Syenite from the Massif of “Serra de Monchique” (Portugal, Iberian Peninsula) Sofia Barbosa...in a Nepheline Syenite from the Massif of “Serra de Monchique” (Portugal, Iberian Peninsula). Minerals...performed in the nepheline syenite (NS) of “Serra de Monchique” located in the southwest region of Portugal...materials (CRMs) in nepheline syenites of the “Serra de Monchique”, located in the northwest region of the...raw materials (CRMs). It is known that original alkaline magmas are greatly enriched in many predominantly | 👁 Image
| Cucciniello, Ciro, Melluso, Leone, le Roex, Anton P., Jourdan, Fred, Morra, Vincenzo, de’ Gennaro, Roberto, Grifa, Celestino (2017) From olivine nephelinite, basanite and basalt to peralkaline trachyphonolite and comendite in the Ankaratra volcanic complex, Madagascar: 40 Ar/ 39 Ar ages, phase compositions and bulk-rock geochemical and isotopic evolution. Lithos, 274. 363-382 doi:10.1016/j.lithos.2016.12.026 | Journal (article/letter/editorial) | | trachyphonolite
and comendite in the Ankaratra Volcanic Complex, Madagascar: 39Ar/40Ar
ages, phase compositions...P. le Roex, Fred Jourdan, Vincenzo Morra, Roberto de’ Gennaro, Celestino Grifa
PII:
DOI:
Reference:
...le Roex, Anton P., Jourdan,
Fred, Morra, Vincenzo, de’ Gennaro, Roberto, Grifa, Celestino, From olivine...trachyphonolite and comendite in the Ankaratra
Volcanic Complex, Madagascar: 39Ar/40Ar ages, phase compositions...trachyphonolite and
comendite in the Ankaratra Volcanic Complex, Madagascar: 39Ar/40Ar ages, phase
T
compositions | 👁 Image
| Mikhailova, Julia A., Ivanyuk, Gregory Yu., Kalashnikov, Andrey O., Pakhomovsky, Yakov A., Bazai, Ayya V., Yakovenchuk, Victor N. (2019) Petrogenesis of the Eudialyte Complex of the Lovozero Alkaline Massif (Kola Peninsula, Russia) Minerals, 9 (10) 581 doi:10.3390/min9100581 | Journal (article/letter/editorial) | | Article
Petrogenesis of the Eudialyte Complex of the
Lovozero Alkaline Massif (Kola Peninsula, Russia)
Julia...Abstract: The Lovozero Alkaline Massif intruded through the Archaean granite-gneiss and Devonian
volcaniclastic...rhythmically layered in its lower part (the Layered Complex) and indistinctly layered and enriched
in eudialyte-group...minerals in its upper part (the Eudialyte Complex). The Eudialyte Complex
is composed of two groups of rocks...rocks. Among the hypersolvus meso-melanocratic alkaline rocks
(mainly malignite, as well as shonkinite, melteigite | 👁 Image
| | Book | | to More Efficient Extraction of Rare Metals from Alkaline Granitoids
Reprinted from: Minerals 2019, 9, 217...article by Gronen et al. [19]
on Zr-REE-Nb ores from alkaline granitoids in Mongolia addresses the problem of...possibility for how to relate the EDS spectra from the complex
and variable REE mineral phases in an ore to mineral...to More Effcient Extraction of Rare Metals from Alkaline Granitoids. Minerals 2019,
9, 217. [CrossRef]...to More Efficient Extraction
of Rare Metals from Alkaline Granitoids
Lars Hans Gronen 1, *, Sven Sindern |
|
