Skip to main content
SpringerLink
Log in

Diffusion coronas around quartz xenocrysts in andesite and basalt from Tertiary volcanic region in northeastern Shikoku, Japan

  • Published:
Contributions to Mineralogy and Petrology Aims and scope Submit manuscript

Abstract

Coronas around quartz xenocrysts in andesite and basalt from Tertiary volcanics in northeastern Shikoku, Japan, have been described. The coronas are composed mainly of Ca-rich clinopyroxene and glass. Compositional profiles across the corona glass show monotonous variation of major elements except for alkalis. Preliminary experiment on the reaction between basaltic melt and quartz has shown that alkalis diffused against their concentration gradients. This particular feature of alkali enrichment in corona glass is explained by a diffusion model, in which non-ideality of alkalis in silicate melt is assumed. Preferred crystallization of Ca-rich clinopyroxene in coronas of orthopyroxene andesite is discussed using a chemical potential diagram in the system SiO2-CaO-RO (RO=MgO+FeO), and it is suggested that higher (Na+K)/Al ratio of the corona glass, which increases the effective CaO concentration and thus increases the μ CaO/μ RO, is responsible for the preferred crystallization of Ca-rich clinopyroxene.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Bottinga, Y., Weill, D. F.: The viscosity of magmatic silicate liquids: a model for calculation. Am. J. Sci. 272, 438–475 (1972)

    Google Scholar 

  • Bowen, N. L.: Diffusion in silicate melts. J. Geol. 29, 295–317 (1921)

    Google Scholar 

  • Cooper, A. R., Heasley, J. H.: Extension of Darken's equation to binary diffusion in ceramics. J. Am. Ceram. Soc. 49, 280–284 (1966)

    Google Scholar 

  • Doe, B. R., Lipman, P. W., Hedge, C. E., Kurasawa, H.: Primitive and contaminated basalts from the southern Rocky Mountains, U.S.A., Contrib. Mineral. Petrol. 21, 142–156 (1969)

    Google Scholar 

  • Fleming, J. W., Jr., Day, D. E.: Relation of alkali mobility and mechanical relaxation in mixed-alkali silicate glasses. J. Am. Ceram. Soc. 55, 186–192 (1972)

    Google Scholar 

  • Flood, G., Knapp, H.W. J.: Structural characteristics of liquid mixtures of feldspar and silica. J. Am. Ceram. Soc. 51, 259–263 (1968)

    Google Scholar 

  • Frischat, G. H.: Sodium diffusion in SiO2 glass. J. Am. Ceram. Soc. 51, 528–530 (1968)

    Google Scholar 

  • Hamilton, D. L., Burnham, C. W., Osborn, E. F.: The solubility of water and effects of oxygen fugacity and water content on crystallization in mafic magmas. J. Petrol. 5, 21–39 (1964)

    Google Scholar 

  • Kushiro, I., Yoder, H. S., Jr.: Origin of calcalkalic peraluminous andesite and dacites. Carnegie Inst. Wash. Year Book 71, 411–413 (1972)

    Google Scholar 

  • Massion, P. J., Koster van Groos, A. F.: Liquid immiscibility in silicates. Nature, phy. Sci. 245, 60–63 (1973)

    Google Scholar 

  • Matsumoto, T.: Some aspects of contamination in the volcanic rocks of Setouchi volcanic zone. J. Geol. Soc. Japan 56, 529–535 (1950) [in Japanese]

    Google Scholar 

  • Mehnert, K. R., Busch, W., Schneider, G.: Initial melting at grain boundaries of quartz and feldspar in gneisses and granulites. Neues Jahrb. Mineral., Monatsh. 1973, 4, 165–182 (1973)

    Google Scholar 

  • Muir, I. D.: Quartzite xenoliths from the Ballachulish granodiorite. Geol. Mag. 40, 409–428 (1953)

    Google Scholar 

  • Nakamura, Y., Coombs, D. S.: Clinopyroxenes in the Tawhiroko tholeiitic dolerite at Moeraki, Northeastern Otago, New Zealand. Contrib. Mineral. Petrol. 42, 213–228 (1973)

    Google Scholar 

  • Shelby, J. E.: Helium migration in natural and synthetic vitreous silica. J. Am. Ceram. Soc. 55, 61–64 (1972)

    Google Scholar 

  • Shewmon, P. G.: Diffusion in solids, 200 p. New York: McGraw-hill 1963

    Google Scholar 

  • Sugi, K.: On the sanukites at the environs of Takamatsu, Sikoku, with special reference to the xenocryst found in rocks. Bull. Volcanol. Soc. Japan 4, 17–33 (1938) [in Japanese]

    Google Scholar 

  • Towers, H., Chipman, J.: Diffusion of calcium and silicon in a lime-alumina-silica slag. Trans. AIME 209, 769–773 (1957)

    Google Scholar 

  • Ujike, O.: Petrology of Tertiary calc-alkaline volcanic rock suite from northeastern Shikoku and Shodo-shima Island, Japan. Sci. Rept. Tohoku Univ., Third Ser. 2, No. 3, 159–201 (1972)

    Google Scholar 

  • Varshneya, A. K., Cooper, A. R.: Diffusion in the system K2O-SrO-SiO2; II, Cation self-diffusion coefficients. J. Am. Ceram. Soc. 55, 220–223 (1972a)

    Google Scholar 

  • Varshneya, A. K., Cooper, A. R.: Diffusion in the system K2O-SrO-SiO2; IV, mobility model, electrostatic effects and multicomponent diffusion. J. Am. Ceram. Soc. 55, 418–421 1972b)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Earth Sciences, Faculty of Science, Kanazawa University, 920, Kanazawa, Japan

    Hiroaki Sato

Authors
  1. Hiroaki Sato
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sato, H. Diffusion coronas around quartz xenocrysts in andesite and basalt from Tertiary volcanic region in northeastern Shikoku, Japan. Contr. Mineral. and Petrol. 50, 49–64 (1975). https://doi.org/10.1007/BF00385221

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00385221

Keywords

Search

Navigation