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Chromian jadeite, phengite, pumpellyite, and lawsonite in a high–pressure metamorphosed gabbro from the French Alps

Published online by Cambridge University Press:  05 July 2018

C. Mevel  and
J. R. Kienast
C. Mevel
Affiliation:
Laboratoire de Pétrologie, Université de Paris VI, 4 pl Jussieu, 75230 Paris cedex 05, France
J. R. Kienast
Affiliation:
Laboratoire de Pétrologie, Université de Paris VI, 4 pl Jussieu, 75230 Paris cedex 05, France
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Summary

Small ophiolitic bodies are enclosed in the calcschists of the Piemont zone (western Alps). They have been metamorphosed in the blueschist facies during the alpine orogeny. One of them, the Roche Noire massif, includes gabbro breccias. The magmatic mineralogy of the gabbro was plagioclase + clinopyroxene + minor chromite. There was no chemical homogenization during metamorphism because of the lack of penetrative deformation and on the site of previous chromites, chromium-rich high-pressure and low-temperature minerals (jadeite, phengite, pumpellyite, and lawsonite) were formed. The Al ⇌ Cr substitution does not affect other P- and T-dependent substitutions.

Type
Research Article
Information
Mineralogical Magazine , Volume 43 , Issue 332 , December 1980 , pp. 979 - 984
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1980

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References

Abs-Wurmbach, (I.) and Neuhaus, (A.), 1976. Neues Jahrb. Mineral., Abh. 127, 213–41.Google Scholar
Aumento, (F.), Mitchell, (W. S.), and Fratta, (M.), 1976. Can. Mineral. 14, 269–90.Google Scholar
Caby, (R.), Kienast, (J. R.), and Saliot, (P.), 1978. Revue de Geographie Physique et de Géologie Dynamique (2), 20, 307–22.Google Scholar
Coleman, (R. G.), 1977. Ophiolites, Springer Verlag.CrossRefGoogle Scholar
Coombs, (D. S.), Nakamura, (Y.), and Vuagnat, (M.), 1976. J. Petrol. 17, 440–71.CrossRefGoogle Scholar
Deer, (W. A.), Howie, (R. A.), and Zussman, (J.), 1962. Rock forming minerals, vol. 3, Longmans.Google Scholar
Coleman, (R. G.) Coombs, (D. S.) Deer, (W. A.) 1978. Ibid., vol. 2A, Longmans.Google Scholar
De Roever, (E. W. F.), 1972. Gua papers of Geology, ser. 1, 3.Google Scholar
De Roever, (E. W. F.) and Kieft, (C.), 1970. Proc. Kon. Nederl. Akad. Wetensch. B73, 585–90.Google Scholar
Ernst, (W. G.), Seki, (Y.), Onuki, (H.), and Gilbert, (M. C.), 1970. Geol. Soc. Am. Mere. 124.Google Scholar
Hart, (R.), 1970 Earth Planet. Sci. Lett. 9, 269–79.CrossRefGoogle Scholar
Hart, (R.) 1973. Can. J. Earth Sei. 10, 789–816.Google Scholar
Iwasaki, (M.), 1963. J. Fac. Sci. Tokyo Univ., sec. II, 15, 1–90.Google Scholar
Kawachi, (Y.), 1975. N.Z. J. Geol. Geophys. 18, 401–41.CrossRefGoogle Scholar
Lemoine, (M.), 1971. Gbologie Alpine, 47, 181–201.Google Scholar
Lemoine, (M.) and Tricart, (P.), 1979. C.R. Acad. Sci. Paris, 288, 1655–8.Google Scholar
Matthews, (D. H.), 1971. Phil. Trans. R. Soc. London, ser. A, 268, 551–71.Google Scholar
Mével, (C.), 1975. Thèse de 3ème cycle, Université de Paris VI.Google Scholar
Passaglia, (E.) and Gottardi, (G.), 1973. Can. Mineral. 12, 219–23.Google Scholar
Popp, (R. K.) and Gilbert, (M. C.), 1972. Am. Mineral. 57, 1210–31.Google Scholar
Robinson, (P. T.), Flower (M. F. J.), Schminke, (H. U.), and Ohnmacht, (W.), 1977. lnitial Report of the D.S.D.P. 37, 775–94Google Scholar
Rucklidge, (J.) and Gasparrini, (E. L.), 1969. Electron microprobe analytical reduction EMPADR VII, Department of Geology, Toronto.Google Scholar
Seki, (Y.), 1961. J. Petrol. 2, 407–23.CrossRefGoogle Scholar
Sobolev, (V. S.), Sobolev, (N. V.), and Lavrent'ev, (Yu. G.), 1975. N. Jb. Miner. Abh. 123, 213–18.Google Scholar
Velde, (B.), 1967. Contrib. Mineral. Petrol. 14, 250–8.Google Scholar