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1-11 OF 11 RESULTS FOR
Ervedosa Portugal
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Journal Article
Chemical zoning of muscovite from the Ervedosa granite, northern Portugal
Journal: Mineralogical Magazine
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...
Journal Article
The origin of the green color of variscite
Journal: American Mineralogist
Publisher: Mineralogical Society of America
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...
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
Mineral transformations
Journal: Mineralogical Magazine
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
NEW AND REVISED OCCURRENCES OF ORDOVICIAN CRINOIDS FROM SOUTHWESTERN EUROPE
Journal: Journal of Paleontology
Publisher: Paleontological Society
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...
Journal Article
Paleoenvironmental and Paleobiogeographical Implications of a Middle Pleistocene Mollusc Assemblage from the Marine Terraces of Baía Das Pipas, Southwest Angola
Journal: Journal of Paleontology
Publisher: Paleontological Society
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...
Journal Article
Genetic relationship between greisenization and Sn-W mineralizations in vein and greisen deposits: Insights from the Panasqueira deposit (Portugal)
Publisher: Société Géologique de France
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...
Journal Article
OSCILLATORY EPITACTIC-GROWTH ZONING IN BIOTITE AND MUSCOVITE FROM THE LAKE LEWIS LEUCOGRANITE, SOUTH MOUNTAIN BATHOLITH, NOVA SCOTIA, CANADA
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
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...
Journal Article
Geochemistry of granitic aplite-pegmatite sills and their minerals from Arcozelo da Serra area (Gouveia, central Portugal)
Journal: European Journal of Mineralogy
Publisher: GeoScienceWorld Journals
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...
Journal Article
INTERESTING PAPERS IN OTHER JOURNALS
Journal: Economic Geology
Publisher: Society of Economic Geologists
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
INTERESTING PAPERS IN OTHER JOURNALS
Journal: Economic Geology
Publisher: Society of Economic Geologists
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...