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Results overview: Found 7 records in 0.02 seconds.
Articles, 7 records found
Articles 7 records found  
1.
20 p, 12.5 MB Magnetic mineralogy of Variscan granites from northern Portugal : an approach to their petrogenesis and metallogenic potential / Cruz, Claudia (Universidade do Porto. Departamento de Geociências Ambiente e Ordenamento do Território) ; Sant'Ovaia, H. (Universidade do Porto. Departamento de Geociências Ambiente e Ordenamento do Território) ; Noronha, Fernando (Instituto de Ciências da Terra-Polo Porto)
Northern Portugal is characterized by the occurrence of numerous W hydrothermal deposits spatially associated with granites. The primary goal of this work is to establish a relationship between the magnetic behavior of the granites and the redox conditions during magma genesis, as this can influence the occurrence of mineralizations, namely of W (Mo). [...]
2020 - 10.1344/GeologicaActa2020.18.5
Geologica acta, Vol. 18 (2020) , p. 1-20 (Articles)  
Detailed record - Creative Commons
2.
19 p, 8.9 MB Relationship of F-Be mineralization to granites and syenites at the Ermakovka deposit (Western Transbaikalia) / Ripp, G. S. (Russian Academy of Sciences. Geological Institute) ; Izbrodin, I. A. (Russian Academy of Sciences. Geological Institute) ; Rampilov, M. O. (Russian Academy of Sciences. Geological Institute) ; Tomilenko, A. A. (Russian Academy of Sciences. Sobolev Institute of Geology and Mineralogy) ; Lastochkin, E. A. (Russian Academy of Sciences. Geological Institute) ; Posokhov, V. F. (Russian Academy of Sciences. Geological Institute)
The paper presents the mineralogical and geochemical characteristics of two groups of hydrothermal rocks and their relation with subalkaline granites of the Ermakovskoe deposit. The first group includes fluorite-phenakite-bertrandite ore bodies, occurring outside the granite massif. [...]
2020 - 10.1344/GeologicaActa2020.18.2
Geologica acta, Vol. 18 (2020) , p. 1-IV (Articles)  
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3.
29 p, 3.0 MB Petrology and geochronology of the Porriño late-Variscan pluton from NW Iberia : a model for post-tectonic plutons in collisional settings / González Menéndez, Leopoldo (Instituto Geológico y Minero de España) ; Gallastegui Suárez, Gloria María (Instituto Geológico y Minero de España) ; Cuesta Fernández, Andrés (Universidad de Oviedo. Departamento de Geología) ; Montero, P. (Universidad de Granada. Departamento de Mineralogía y Petrología) ; Rubio Ordoñez, Álvaro (Universidad de Oviedo. Departamento de Geología) ; Molina Palma, José Francisco (Universidad de Granada. Departamento de Mineralogía y Petrología) ; Bea, Fernando (Universidad de Granada. Departamento de Mineralogía y Petrología)
The Variscan orogen of NW Iberia contains abundant syn- and post-tectonic granitoids. The post-tectonic granitoids are metaluminous to slightly peraluminous, I-type granites, monzogranites ± granodiorites ± tonalites. [...]
2017 - 10.1344/GeologicaActa2017.15.4.3
Geologica acta, Vol. 15 Núm. 4 (December 2017) , p. 283-304  
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4.
19 p, 2.0 MB Caracterización petrológica de perfiles de meteorización antiguos desarrollados en granitos tardihercínicos de la Cordillera Costero Catalana / Gómez-Gras, David (Universitat Autònoma de Barcelona. Departament de Geologia) ; Ferrer, C. (Universitat Autònoma de Barcelona. Departament de Geologia)
Resum.
1999
Revista de la Sociedad Geológica de España, Vol. 12 Num. 2 (1999) , p. 281-299  
Detailed record -
5.
25 p, 2.6 MB The spatial and compositional evolution of the Late Jurassic Ghorveh-Dehgolan plutons of the Zagros Orogen, Iran : SHRIMP zircon U-Pb and Sr and Nd isotope evidence / Yajam, S. (Kharazmi University (Teheran, Iran). Department of Geology) ; Montero, P. (Universidad de Granada. Departamento de Mineralogía y Petrología) ; Scarrow, J. H. (Universidad de Granada. Departamento de Mineralogía y Petrología) ; Ghalamghash, J. (Geological Survey of Iran) ; Razavi, S. M. H. (Kharazmi University (Teheran, Iran). Department of Geology) ; Bea, Fernando (Universidad de Granada. Departamento de Mineralogía y Petrología)
The Ghorveh-Dehgolan plutons of the northern Sanandaj-Sirjan Zone, Zagros Orogen, comprise seven composite intrusive bodies that were generated during northeastward subduction of Neotethys beneath the Iranian sector of the Eurasian plate. [...]
2015 - 10.1344/GeologicaActa2015.13.1.2
Geologica acta, Vol. 13 Núm. 1 (March 2015) , p. 25-43  
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6.
12 p, 794.2 KB Termobarometría Opx-Cpx aplicada al conocimiento de las condiciones de formación de las rocas ultramáficas de Vivero (Lugo, noroeste de España) / Galán García, Gumer (Université de Paris IV. Laboratoire de Petrologie)
Diversos métodos termométricos y barométricos, basados en el equilibrio ortopiroxenoclinopiroxeno, se utilizan en la determinación de la temperatura y presión de formación de rocas ultramáficas ricas en anfíbol, asociadas a granitos calcoalcalinos del macizo de Vivero (Lugo, noroeste de España). [...]
Several two-pyroxene thermometers and barometers have been used to determine the genetic conditions of ultramafic rocks associated to calc-alkalic granites that outcrop in the Vivero Massif (Lugo, NW of Spain). [...]
1985 - 10.3989/egeol.85415-6712
Estudios geológicos, Vol. 41, Núm. 5-6 (1985) , p. 289-300  
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7.
20 p, 870.7 KB Petrogenesis of highly fractionated I-type peraluminous granites : La Pedriza pluton (Spanish Central System) / Pérez-Soba Aguilar, Cecilia (Universidad Complutense de Madrid. Departamento de Petrología y Geoquímica) ; Vilaseca, Carlos (Consejo Superior de Investigaciones Científicas (Espanya). Instituto de Geología Económica)
The La Pedriza pluton stands out as the most extensively fractionated granite (Rb < 629; Sr < 2 and Ba < 2 ppm) of the Spanish Central System Batholith. These granites show a strong enrichment in some rare metal contents (Nb = 44, Y = 136, Yb = 10. [...]
2010 - 10.1344/105.000001527
Geologica acta, Vol. 8, Núm. 2 (Juny 2010) , p. 131-149  
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