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Kamafugite

Intra-Apennine (0.6 to 0.3 Ma) San Venanzo (0.26), Cupaello (0.64), Polino (0.25), Acquasparta, Oricola (0.53) etc. - Monogenic pyroclastic centres and rare lavas with an ultrapotassic melilititic (kamafugite) composition. Carbonatites ( ). [Pg.3]

Ultrapotassic rocks from Tuscany have a lamproitic composition (see Appendix for nomenclature of potassic rocks). Older lamproites (14 Ma) occur at Sisco, Corsica. Kamafugitic rocks make up a few monogenetic centres in the internal zones of northern-central Apennines (Umbria, Latium, Abruzzi), and have been found at Vulsini and as ejected blocks in pyroclastic deposits at Colli Albani (Federico et al. 1994). Roman-type potassic and ultrapotassic rocks (KS and HKS) form the bulk of magma-... [Pg.5]

A few monogenetic hydrovolcanic pyroclastic centres composed of altered ultrapo-tassic tuffs with a kamafugitic composition. [Pg.53]

Massive pyroclastic rocks containing kamafugitic juvenile material. [Pg.53]

The main questions concerning the volcanics of the IAP relate to the origin of the kamafugitic lavas at San Venanzo and Cupaello and the nature of carbonate-rich pyroclastic rocks present in several centres. Both issues have been much discussed in the literature, although the debate often has been based on preconceptions rather than on factual evidence. [Pg.60]

The volcanic centres of the LAP consist of pyroclastic deposits and a few lava flows and dyke rocks. Lavas have olivine melilitite and kalsilite meli-litite composition and show an ultrapotassic kamafugitic affinity. Pyroclastic rocks range from melilitite to phonolite. Carbonate-rich pyroclastic rocks are also present. [Pg.66]

Gallo F, Giammetti F, Venturelli G, Vemia L (1984) The kamafugitic rocks from San Venanzo and Cupaello, central Italy. Neues Jahrb Mineral Monatsh 1984 198-210... [Pg.340]

Stoppa F, Woolley AR (1997) The Italian carbonatites field occurrence, petrology and regional significance. Mineral Petrol 59 43-67 Stoppa F, Wooley AR, Cundari A (2002) Extension of the melilite-carbonatite province in the Apennines of Italy the kamafugite of Grotta del Cervo. Mineral Mag 66 555-574... [Pg.355]

Tappe S, Foley SF, Pearson DG (2003) The kamafugites of Uganda a minera-logical and geochemical comparison with their Italian and Brasilian counterpart. Per Mineral 72 51-77... [Pg.356]

See other pages where Kamafugite is mentioned: [Pg.7]    [Pg.11]    [Pg.53]    [Pg.54]    [Pg.57]    [Pg.58]    [Pg.59]    [Pg.61]    [Pg.61]    [Pg.61]    [Pg.61]    [Pg.62]    [Pg.63]    [Pg.63]    [Pg.64]    [Pg.65]    [Pg.65]    [Pg.66]    [Pg.66]    [Pg.75]    [Pg.77]    [Pg.94]    [Pg.102]    [Pg.296]    [Pg.319]    [Pg.320]    [Pg.321]    [Pg.351]    [Pg.64]    [Pg.64]    [Pg.1034]   
See also in sourсe #XX -- [ Pg.5 , Pg.53 , Pg.57 , Pg.75 , Pg.296 , Pg.320 ]



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Kamafugitic Rocks

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