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Clinopyroxene solid solutions and water in magmas: results in the system phonolitic tephrite-H2O

Published online by Cambridge University Press:  05 July 2018

D. Dolfi  and
R. Trigila
D. Dolfi
Affiliation:
Istituto di Mineralogia e Petrografia, Università di Roma, Rome, Italy
R. Trigila
Affiliation:
Istituto di Mineralogia e Petrografia, Università di Roma, Rome, Italy
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Abstract

Clinopyroxene solid solutions crystallized at Ptot = 2 kbar in the natural system phonolitic tephrite-H2O (lava type from Etna eruption 1971) indicate a linear increase of ln Xcpxcats with H2Oliq %. After coupling this with the In Xcpxcats pressure dependence found through experiments, a simple relation has been set up for clinopyroxene- and plagioclase-bearing magmas. This relation allows us to calculate the amount of water dissolved in the melt, at any known pressure in the crustal range.

Type
Research Article
Information
Mineralogical Magazine , Volume 47 , Issue 344 , September 1983 , pp. 347 - 351
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1984

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References

Cagnetti, V., di Sabatino, B., and Trigila, R. (1973) Rend. Soc. Ital. Mineral. Petrol. 29, 345–78.Google Scholar
Dolfi, D., and Trigila, R. (1978a) Contrib. Mineral. Petrol. 67, 297–304.CrossRefGoogle Scholar
Dolfi, D., (1978b) Progr. Exp. Petrol. N.E.R.C. 4th Report, 18–22.Google Scholar
Downes, M. J. (1973) Phil. Trans. R. Soc. London. A274, 52–8. Catania.Google Scholar
Graham, A. M., and Saunders, M. J. (1978) Progr. Exp. Petrol. N.E.R.C. 4th Report, 124–5. London A274, 137–46.Google Scholar
Graham, A. M., Ace. Gioenia Sc. Nat. S. VII, 3, 29.Google Scholar
Rittmann, A., Romano, R., and Sturiale, C. (1971) Atti Ace. Gioenia Sc. Nat. S. VII, 3, 29.Google Scholar
Romano, R., Sturiale, C, and Lentini, F. (1979) Carta geologica del Monte Etna, C.N.R. Italian Geodynamic Project, International Institute of Volcanology, Catania.Google Scholar
Sato, M., and Moore, J. G. (1973) Phil. Trans. R. Soc. London A274, 137–46.Google Scholar
Tanguy, J. C. (1973) Ibid. A274, 45–61.Google Scholar
Thompson, R. N. (1974) Mineral. Mag. 39, 768–87.CrossRefGoogle Scholar