 | | Journal (article/letter/editorial) | | associated with Cenozoic volcanic rocks of Sardinia (Italy): Geological, mineralogical, geochemical features...of Cagliari, Piazza d’Armi 19, 09123 Cagliari, Italy b Dipartimento di Geoingegneria e Tecnologie Ambientali...of Cagliari, Piazza d’Armi 19, 09123 Cagliari, Italy c Dipartimento di Scienze della Terra, University...University of Cagliari, Via Trentino, 09123 Cagliari, Italy Received 28 February 2004; accepted 5 November 2005...deposits associated with the Cenozoic volcanics of Sardinia include kaolin, bentonite, and zeolites. Though |  | | Journal (article/letter/editorial) | | autumn of 1905 the volcanic districts of Catalonia, Sardinia, Pantelleria, and Linosa were visited by me, and...Basin, of a hitherto unrecognized petrographic province, or c o m a g m a t i c r e g i o n , to adopt...the lavas of the small recent cones, in Western Sardinia, and the volcanoes of Pantelleria and Linosa (a... I9o7, of a comag~natic region (petrographic province) extending in a rather narrow zone from Linosa...south-east, north-westward through Pantelleria and Sardinia, and possibly through the volcanoes of the southern |  | | Journal (article/letter/editorial) | | Deecke, Italien, Berlin, 1899 (?), p. 479; and Italy, London and New York, 1904, p. 449. Vol XVI, No...plagioclase, augite, olivine, and titaniferous magnetite, with occasionally some glass and traces of nephelite...inclusions, either of brownish glass or of augite and magnetite grains. The augite phenocrysts are rarely visible... and containing generally some inclusions of magnetite. The olivine phenocrysts, which are more abundant...rather than prismoidal, and many opaque grains of magnetite, small grains of olivine and apatite prisms being |  | | Report (issue) | | basalt and the other a feldspathic rock with magnetite, little olivine, and rare augite grains. The latter... Augite is always abundant, but titaniferous magnetite is decidedly more subordinate than is usual in...intersertal glass but not as a continuous 1natrix. Magnetite occurs in minute very fresh grains, many of which...consist of plagioclase, augite, olivine, and magnetite, with a little apatite and intersertal globul:it:ic...partly in anhedral· grains like those of augite. Magnetite is concentrated in a few crystals equaling those |  | | Report (issue) | | ROCKS. entirely of such minerals as olivine, magnetite, and Indeed, Hillebrand has entered so strong...that needed for the maximurn possible amount of magnetite or for the augitic molecule Fe2 0 3 • (Mg,Fe)O...constituent nlinerals are labradorite, augite, and magnetite, the anl:l,lysis may show high Al20 3 and low...being thus assumed to be only in the form of magnetite. We are therefore compelled to reject nearly all...Switzerland. Italy: Lombardy, Piedmont: Emilia, Tuscany (Elba), Rome, Campania, Apulia, Sardinia, Sicily, |  | | | | —Underground Water Resources of the Coastal Plain Province of Virginia: Geology of the Columbus Quadrangle... 216. Page Art. L.—Some Lavas of Monte Arci, Sardinia; by H. S. W ASGHINGTON 2 22) ,e2t -L..J.. J. 332...deposits of bones both here and elsewhere in the Province of Cuzco, I am led to the opinion that the bones...pegmatite dikes of such a region as the alkaline province of Christiania are but the last step in a somewhat...The corresponding formula is Fe,O.,.... Magnetite.—Magnetite from a large crystal, excluding 0°27 per |  | | Journal (volume) | | —Underground Water Resources of the Coastal Plain Province of Virginia: Geology of the Columbus Quadrangle... 216. Page Art. L.—Some Lavas of Monte Arci, Sardinia; by H. S. W ASGHINGTON 2 22) ,e2t -L..J.. J. 332...deposits of bones both here and elsewhere in the Province of Cuzco, I am led to the opinion that the bones...pegmatite dikes of such a region as the alkaline province of Christiania are but the last step in a somewhat...The corresponding formula is Fe,O.,.... Magnetite.—Magnetite from a large crystal, excluding 0°27 per |  | Doelter, C. (1926) Handbuch der Mineralchemie Vol. 3-2 - Zweite Hälfte Enthält : Li, Na, K, Cu, Rb, Ag, Cs, Au, Be, Mg, Ca, Zn, Sr, Cd, Ba, Hg, Ra, B, Al, Ga, In, Tl, Metalle der seltenen Erden, Fe, Mn, Co, Ni und Platinmetalle. Theodor Steinkopff, Dresden und Leipzig. | Book (volume) | | Gazz. chim. it. 17, 216 (1887). Chromhaltige Magnetite. MgO CaO. MnO feO. Al 2 0 3 fe:Ps Cr2 0 3 Si02...Nr. 35 auf 100°/0 • Titan- und vanadinhaltige Magnetite. Na 20 K2 0 MgO CaO MnO feO NiO CoO BaO Al 20...837. Vanadiumgehalt des Magneteisens. - Manche Magnetite enthalten auch merkliche Mengen von Vanadium....Formel. Die reinen Magnetite haben die Formel: FeO.Fe2 0 3 • Solche ganz reine Magnetite scheinen jedoch...0 4 • Uber polaren Magnetismus verschiedener Magnetite siehe auch f. Hornstei n. 2) Brechungsquotienten |
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Ploaghe, Sassari Province, Sardinia, Italy