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Ervedosa Portugal

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Journal Article
Published: 01 April 2000
Mineralogical Magazine (2000) 64 (2): 347–358.
... quartz veins walls from Ervedosa, northern Portugal. The zoning of muscovite was identified by backscattered imaging and electron micro-probe analyses. T he origin and significance of zoning in minerals have attracted attention since the early days of optical mineralogy. The chemical zoning...
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Journal Article
Published: 01 May 2005
American Mineralogist (2005) 90 (5-6): 984–990.
...Georges Calas; Laurence Galoisy; Amonmat Kiratisin Abstract The color of variscite from three different localities (Pannecé, France; Sarrabus, Sardinia; Ervedosa, Portugal) and metavariscite from Utah was investigated by diffuse reflectance and EPR spectroscopy. These samples contain low levels...
FIGURES
Image
UV-visible and near-infrared diffuse reflectance spectrum of a massive vari...
Published: 01 May 2005
F igure 1. UV-visible and near-infrared diffuse reflectance spectrum of a massive variscite sample from Ervedosa, Portugal.
Journal Article
Published: 01 April 2000
Mineralogical Magazine (2000) 64 (2): 155–156.
.... ( 2000 ) Phase transitions in tridymite studied using ‘Rigid Unit Mode’ theory, Reverse Monte Carlo methods and molecular dynamics simulations . Mineral. Mag ., 64 , 267 – 83 . Gomes , M.E.P. and Neiva , A.M.R. ( 2000 ) Chemical zoning of muscovite from the Ervedosa granite, northern...
Journal Article
Published: 01 November 2007
Journal of Paleontology (2007) 81 (6): 1374–1383.
... by Delgado on 11 October 1905, according to the original labels of his collection, and are from the Ervedosa-Sobrado roadcut in the Valongo area, North Portugal. The locality lies southwest of Sobrado near the old quarry of Paço, about 3 km northeast from Valongo city ( Fig. 1 , locality 13...
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Journal Article
Published: 01 November 2013
Journal of Paleontology (2013) 87 (6): 1016–1040.
... investigated during Angola's colonial period ( Carvalho, 1961 ), except for a few works primarily concerned with stratigraphy and archeology ( Ervedosa, 1980 ; Giresse et al., 1984 ; Gutierrez et al., 2001 ). Additionally, early works were by Portuguese geologists and published in national journals, and thus...
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Journal Article
Published: 23 February 2021
Bulletin de la Société Géologique de France (2021) 192 (1): 2.
... images ( Fig. 4e ). The contact between core and rim is well defined and the thickness of rims ranges between 50 and 300 µm. Such pattern was already described in ongonites ( Dostal et al. , 2015 ) and in the hydrothermally altered Sn-bearing granite of Ervedosa (northern Portugal) ( Gomes and Neiva...
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Journal Article
Published: 01 August 2003
The Canadian Mineralogist (2003) 41 (4): 1027–1047.
... from the Ervedosa granite, northern Portugal . Mineral. Mag . 64 , 347 – 358 . Green , T.H. ( 1981 ): Synthetic high-pressure micas compositionally intermediate between the dioctahedral and trioctahedral mica series . Contrib. Mineral. Petrol . 78 , 452 – 458 . Halter , W.E...
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Journal Article
Published: 01 August 2008
European Journal of Mineralogy (2008) 20 (4): 465–485.
... state of columbite-group minerals in granitic pegmatites of the Pampean Ranges, Argentina . Can. Mineral ., 44 , 645 – 666 . Gomes , M.E.P. & Neiva , A.M.R. ( 2000 ): Chemical zoning of muscovite from the Ervedosa granite, northern Portugal . Mineral. Mag ., 64 , 347 – 358...
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Journal Article
Journal: Economic Geology
Published: 01 August 2002
Economic Geology (2002) 97 (5): 1143–1150.
... Ervedosa, northern Portugal: The importance of magmatic process— M.E.P. Gomes and A.M.R. Neiva 47 Unexpectedly high-PGE chromitite from the deeper mantle sectionof the northern Oman ophiolite and its tectonic implications —A.H. Ahmed and S. Arai 263 Very high-density carbonic fluid...
Journal Article
Journal: Economic Geology
Published: 01 August 2006
Economic Geology (2006) 101 (5): 1093–1102.
... mineralogical controls on mine drainage of the abandoned Ervedosa tin mine in north-eastern Portugal— M. Elisa P. Gomes and Paulo J.C. Favas 1322 The relationship between fluid flow and mineral weathering in heterogeneous unsaturated porous media: A physical and geochemical characterization of a waste-rock...