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Mineral chemistry and petrogenetic aspects of the Vico lavas, Roman volcanic region, Italy

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Abstract

A detailed study of the phase chemistry of selected lavas from Vico shows that the “excess silica” in leucite is a significant and widespread crystal-chemical characteristic which may be interpreted in terms of an extended solubility of KAlSi3O8 and/or differential loss of potassium from the leucite structure. Plagioclase geothermometer data suggest increasing plagioclase control in the differentiation with decreasing Mg/Mg+Fe2+ ratios for the bulk rocks. The pyroxene compositions show moderate amounts of ferri-Tschermak's and Ca-Tschermak's molecules, probably controlled by temperature and compositional variations in the cooling liquids. Both microphenocrystal and late-crystallizing micas correspond to phlogopite compositions throughout the suite.

The phase chemistry is discussed in relation to the differentiation of the suite and current petrogenetic models.

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References

  • Appleton, J.D.: Petrogenesis of potassium-rich lavas from the Roccamonfina volcano, Roman Region, Italy. J.Petrol. 13, 425–456 (1972)

    Google Scholar 

  • Barbieri, F., Fornaseri, M., Penta, A.: Rubidium and potassium relationship in some volcanoes of Central Italy. Chem. Geol. 3, 189–197 (1968)

    Google Scholar 

  • Bell, K., Powell, J.L.: Strontium isotopic studies of alkali rocks: the potassium-rich lavas of the Birunga and Toro-Ankole regions, East and Central Equatorial Africa. J. Petrol. 10, 536–572 (1969)

    Google Scholar 

  • Binns, R.A., Duggan, M.B., Wilkinson, J.F.G.: High pressure megacrysts in alkaline lavas from Northeastern New South Wales. Am, J. Sci. 269, 132–198 (1970)

    Google Scholar 

  • Brown, F.H., Carmichael, I.S.E.: Quaternary volcanoes of the Lake Rudolf Region: I. The basanitetephrite series of the Korath Range. Lithos 2, 239–260 (1969)

    Google Scholar 

  • Burri, C.: Potentielle Mineralbestände Kalitrachybasaltisch-karbonatischer Syntektica und die Zukunft des Vesuvmagmas. Geol. Rundschau 57, 744–765 (1968)

    Google Scholar 

  • Carmichael, I.S.E.: The mineralogy and petrology of the volcanic rocks from the Leucite Hills, Wyoming. Contrib. Mineral. Petrol. 15, 24–66 (1967a)

    Google Scholar 

  • Carmichael, I.S.E.: The iron-titanium oxides of salic volcanic rocks and their associated ferromagnesian silicates. Contrib. Mineral. Petrol. 13, 36–64 (1967b)

    Google Scholar 

  • Carmichael, I.S.E., Turner, F.J., Verhoogen, J.: Igneous Petrology, 739 pp. New York: McGraw-Hill 1974

  • Cundari, A.: Petrology of the leucite-bearing lavas in New South Wales. J. Geol. Soc. Australia 20, 465–492 (1973)

    Google Scholar 

  • Cundari, A., Graziani, G.: Prodotti di alterazione della leucite nelle vulcaniti vicane. Periodico Mineral. (Rome) 33, 35–53 (1964)

    Google Scholar 

  • Cundari, A., LeMaitre, R.W.: On the petrogeny of the leucity-bearing rocks of the Roman and Birunga volcanic regions. J. Petrol. 11, 33–47 (1970)

    Google Scholar 

  • Cundari, A., Mattias, P.P.: Evolution of the Vico lavas, Roman Volcanic Region, Italy. Bull. Volcanol. 38, 98–114 (1974)

    Google Scholar 

  • Ferguson, A.K.: On hour-glass sector zoning in clinopyroxene. Min. Mag. (London) 29, 321–325 (1973)

    Google Scholar 

  • Ferguson, A.K., Cundari, A.: Petrological aspects and evolution of the leucite-bearing lavas from Bufumbira, South West Uganda. Contrib. Mineral. Petrol. 50, 25–46 (1975)

    Google Scholar 

  • Fornaseri, M., Penta, A.: Elementi alcalini minori negli analcimi e loro comportamento nel processo di analcimizzazione della leucite. Periodico Mineral. (Rome) 29, 85–102 (1960)

    Google Scholar 

  • Fudali, R.F.: Experimental studies bearing on the origin of pseudoleucite and associated problems of alkalic rock systems. Bull. Geol. Soc. Am. 74, 1101–1126 (1963)

    Google Scholar 

  • Hollister, L.S., Gancarz, A.J.: Compositional sector zoning in clinopyroxene from the Narce area, Italy. Am. Mineralogist 56, 959–979 (1971)

    Google Scholar 

  • Huckenholz, H.G., Schairer, J.F., Yoder, H.S. Jr.: Synthesis and stability of ferri-diopside. Mineral. Soc. Amer. Spec. Pap. 2, 163–177 (1969)

    Google Scholar 

  • Kudo, A.M., Weill, D.F.: An igneous plagioclase thermometer. Contrib. Mineral. Petrol. 25, 52–65 (1970)

    Google Scholar 

  • Kushiro, I.: Pyroxene solid solutions. Pt. I. The CaAl2SiO6 component. Jap. J. Geol. Geography Trans. 33, 213–220 (1962)

    Google Scholar 

  • Le Bas, M.J.: The role of aluminium in igneous clinopyroxenes with relation to their parentage. Am. J. Sci. 260, 267–288 (1962)

    Google Scholar 

  • Locardi, E.: Tipi di ignimbriti di magmi mediterranei. Le ignimbriti del vulcano di Vico. Atti. Soc. Toscana. Sci. Nat. 72, 55–173 (1965)

    Google Scholar 

  • Locardi, E., and Mittempergher, M.: Relationship between some trace elements and magmatic processes. Geol. Rundschau 57, 313–334 (1967)

    Google Scholar 

  • Locardi, E., and Mittempergher, M.: The meaning of magmatic differentiation in some Recent volcanoes of Central Italy. Bull. Volcanol. 33, 1089–1100 (1969)

    Google Scholar 

  • Marinelli, G., and Mittempergher, M.: On the genesis of some magmas of typical mediterranean (potassic) suite. Bull. Volcanol. 29, 113–140 (1966)

    Google Scholar 

  • Mason, P.K., Frost, M.T., Reid, S.J.B.: Computer programs for calculating correlations in quantitative X-ray microanalysis. Nat. Phys. Lab. (U.K.) I,M,S, Rep. 2, (1969)

  • Mathez, E.A.: Refinement of the Kudo-Weill plagioclase thermometer and its application to basaltic rocks. Contrib. Mineral. Petrol. 41, 61–72 (1973)

    Google Scholar 

  • Mattias, P.P., Ventriglia, U.: La Regione Vulcanica dei Monti Sabatini e Cimini. Mem. Soc. Geol. It. 9, 331–384 (1970)

    Google Scholar 

  • Molina, F., Sonaglia, A.: Rilevamento geomagnetico degli apparati vulcanici Vicano e Sabazio. Ann. Geofis. (Rome) 22, 147–162 (1969)

    Google Scholar 

  • Rittmann, A.: Die geologisch Evolution und Differentiation des Somma-Vesusmagma. Z. Vulk. 15, 8–94 (1933)

    Google Scholar 

  • Rittmann, A.: Les Volcans et leur activité. 461 pp. Paris: Masson, 1963

    Google Scholar 

  • Savelli, C.: The problem of rock assimilation by Somma-Vesuvius magma. I. Composition of Somma and Vesuvius lavas. Contrib. Mineral. Petrol. 16, 328–353 (1967)

    Google Scholar 

  • Savelli, C.: The problem of rock assimilation by Somma-Vesuvius magma. II. Composition of sedimentary rocks and carbonate ejecta from the Vesuvius erea. Contrib. Mineral. Petrol. 18, 43–64 (1968)

    Google Scholar 

  • Schairer, J.F.: Melting relations of the common rock-forming silicates. Am. Ceram. Soc. Bull. 40, 215–235 (1957)

    Google Scholar 

  • Thompson, R.N.: Oscillatory and sector zoning in augite from a Vesuvian lava. Carnegie Inst. Yearb. 71, 463–470 (1972)

    Google Scholar 

  • Thornton, C.P., Tuttle, O.F.: Chemistry of igneous rocks. I. Differentiation Index. Am. J. Sci. 258, 664–684 (1960)

    Google Scholar 

  • Watkinson, D.H., Wyllie, P.J.: Phase equilibrium studies bearing on the limestone-assimilation hypothesis. Bull. Geol. Soc. Am. 80, 1565–1576 (1969)

    Google Scholar 

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  1. School of Geology, University of Melbourne, 3052, Parkville, Victoria, Australia

    A. Cundari

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Cundari, A. Mineral chemistry and petrogenetic aspects of the Vico lavas, Roman volcanic region, Italy. Contr. Mineral. and Petrol. 53, 129–144 (1975). https://doi.org/10.1007/BF00373127

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