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Anorthite megacrysts from island arc basalts

Published online by Cambridge University Press:  05 July 2018

Mitsuyoshi Kimata ,
Norimasa Nishida ,
Masahiro Shimizu ,
Shizuo Saito ,
Tomoaki Matsui  and
Yoji Arakawa
Mitsuyoshi Kimata
Affiliation:
Institute of Geoscience, The University of Tsukuba, Ibaraki 305, Japan
Norimasa Nishida
Affiliation:
Chemical Analysis Centre, The University of Tsukuba, Ibaraki 305, Japan
Masahiro Shimizu
Affiliation:
Institute of Geoscience, The University of Tsukuba, Ibaraki 305, Japan
Shizuo Saito
Affiliation:
Institute of Materials Sciences, The University of Tsukuba, Ibaraki 305, Japan
Tomoaki Matsui
Affiliation:
Institute of Geoscience, The University of Tsukuba, Ibaraki 305, Japan
Yoji Arakawa
Affiliation:
Institute of Geoscience, The University of Tsukuba, Ibaraki 305, Japan
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Abstract

Anorthite megacrysts are common in basalts from the Japanese Island Arc, and signally rare in other global fields. These anorthites are 1 to 3 cm in size and often contain several corroded Mg-olivine inclusions. The megacrysts generally range from An94Ab4Ot2 to An89Ab6Ot5 (Ot: other minor end-members, including CaFeSi3O8, CaMgSi3O8, AlAl3SiO8, □Si4O8) and show no chemical zoning. They often show parting. Redclouded megacrysts contain microcrystals of native copper with a distribution reminiscent of the shape of a planetary nebula. Hydrocarbons are also present, both in the anorthite megacrysts and in the olivines included within them. Implications of lateral variations in the Fe/Mg ratio of the included olivines, in Sr-content and in Sr-isotope ratio of the anorthite megacrysts with respect to the Japanese island arc, relate to mixing of crustal components and subducted slab-sediments into the basaltic magmas.

Keywords

anorthitemegacrystisland arcJapanbasalt
Type
Mineralogy
Information
Mineralogical Magazine , Volume 59 , Issue 394 , March 1995 , pp. 1 - 14
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1995

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References

Andersen, O. (1917) Aventurine feldspar from California. Amer. Mineral, 2, 91.Google Scholar
Arakawa, Y., Murakami, H., Kimata, M. and Shimoda, S. (1992) Strontium isotope compositions of anorthite and olivine phenocrysts in basaltic lavas and scorias of Miyakejima volcano, Japan. J. Min. Pet. Econ. Geol., 87, 226–39.CrossRefGoogle Scholar
Arculus, R. J. and Johnson, R. W. (1981) Island arc magma sources: A geochemical assessment of the roles of slab-derived components and crustal contamination. Geochem. J., 15, 109–33.CrossRefGoogle Scholar
Benna, P. Zanini, G. and Bruno, E. (1985) Cell parameters of thermally treated anorthite. Al.Si configurations in the average structures of the high temperature calcic plagioclases. Contrib. Mineral. Petrol., 90, 381–5.CrossRefGoogle Scholar
Billups, W. E., Konarski, M. M., Hauge, R. H. and Margrave, J. L. (1980) Activation of methane with photoexcited metal atoms. J. Amer. Chem. Soc, 102, 7393–4.CrossRefGoogle Scholar
Bottinga, Y. and Weil, D. F. (1972) The viscosity of magmatic silicate liquids: a model for calculation. Amer. J. Sci., 272, 438–75.CrossRefGoogle Scholar
Bowen, N. L. (1922) The behavior of inclusions in igneous rocks. J. Geol., 30, 513–70.CrossRefGoogle Scholar
Brown, G. E. Jr. (1982) Olivines and silicate spinels. In Miner. Soc. Amer.. Reviews in Mineralogy, 5, 275–392.Google Scholar
Buiskool Toxopeus, J. M. A. and Boland, J. N. (1976) Several types of natural deformation in olivine, an electron microscope study. Tectonophys., 32, 209–33.CrossRefGoogle Scholar
Colthup, N. B., Daly, L. H. and Wiberly, S. E. (1975) Introduction to Infrared and Raman Spectroscopy, 2nd edn. Academic Press.Google Scholar
Crawford, A. J., Falloon, T. J., and Eggins, S. (1987) The origin of island arc high-alumina basalts. Contrib. Mineral. Petrol, 97, 417–30.CrossRefGoogle Scholar
Davies, J. H. and Stevenson, D. J. (1992) Physical model of source region of subduction zone volcanics. J. Geophys. Res., 97, 2037–70.CrossRefGoogle Scholar
Donaldson, C. H. (1975) Ultramafic inclusions in anorthite megacrysts from the Isle of Skye. Earth Planet. Sci. Lett., 27, 251–6.CrossRefGoogle Scholar
Foley, F. S., Taylor, W. R. and Green, D. H. (1986) The role of fluorine and oxygen fugacity in the genesis of the ultrapotassic rocks. Contrib. Mineral. Petrol, 94, 183–92.CrossRefGoogle Scholar
Ginzburg, I. V. (1969) Immiscibility of the natural pyroxenes diopside and fassaite and the criterion for it. Dokl. Acad. Sci. U.S.S.R., Earth Sci. Sect., 186, 106–109.Google Scholar
Gorai, M. (1965) Twinning in some artificial plagioclases. Indian Mineral., 6, 51–4.Google Scholar
Hofmeister, A. M. and Rossman, G. R. (1985) Exsolution of metallic copper from Lake County labradorite. Geology, 13, 644–47.2.0.CO;2>CrossRefGoogle Scholar
Irving, A. J. and Green, D. H. (1970) Experimental duplication of mineral assemblages in basic inclusions of the Delegate breccia pipes. Phys. Earth Planet. Interior., 3, 385–9.CrossRefGoogle Scholar
Ishikawa, T. (1951) Petrological significance of large anorthite crystals included in some pyroxene andesites and basalts in Japan. J. Fac. Sci., Hokkaido Univ., Ser. IV, Vol. VII, No.4, 339–54.Google Scholar
Kimata, M., Shimizu, M., Saito, S., Murakami, H. and Shimoda, S. (1991) Analytical process for micro-probing the crystals in a thin section: Focused on Raman and Infrared absorption spectroscopies. Ann. Rep. Inst. Geosci., Univ. Tsukuba, no. 17, 85–92.Google Scholar
Kimata, M., Nishida, N., Shimizu, M., Saito, S. and Arakawa, Y. (1992) Geochemical roles of aventurine labradorites including native coppers: Implication for continental-margin magmatism. submitted to Pegmatite symposium of ‘Lepidorite 200'.Google Scholar
Kimata, M., Shimizu, M., Saito, S., Nishida, N., Arakawa, Y. and Shimoda, S. (1993) Hydrocarbons within anorthite megacrysts as a window to understanding the arc-magmatic process. Neues Jahrb. Mineral, Mh., 408-16.Google Scholar
Koide, H. and Nakamura, T. (1943): On the growth of crystals in the presence of colloids. Proc. Imp. Acad. Tokyo, 19, 202–4.CrossRefGoogle Scholar
Kuno, H. (1966) Lateral variation of basalt magma type across continental margins and island arcs. Bull. Volcanol., 29, 195–222.CrossRefGoogle Scholar
Kushiro, I. (1983) On the lateral variations in chemical composition and volume of Quaternary volcanic rocks across Japanese arcs. J. Volcanol. Geotherm. Res., 18, 435–47.CrossRefGoogle Scholar
Kushiro, I. and Yoder, H. S. (1966) Anorthite-forsterite and anorthite-enstatite reactions and their bearing on the basalt-eclogite transformation. J. Petrol, 7, 337–62.CrossRefGoogle Scholar
Lutts, B. G. and Kopaneva, L. H. (1968) A pyrope-sapphirine rock from the Anabar massif and its conditions of metamorphism. Dokl. Acad. Sci., U.S.S.R., Earth Sci. Sect., 179, 161–3.Google Scholar
Mackwell, S. J. (1985) The role of water in the deformation of olivine single crystals. J. Geophys. Res., 90, B13, 11319–33.CrossRefGoogle Scholar
Murakami, H., Kimata, M. and Shimoda, S. (1991) Native copper included by anorthite, from the island of Miyakejima: implication for arc magmatism. J. Min. Pet. Econ. Geol, 86, 364–74.CrossRefGoogle Scholar
Murakami, H., Kimata, M., Shimoda, S., Ito, E. and Sasaki, S. (1992) Solubility of CaMgSi3O8 and DSig endmembers in anorthite. J. Min. Pet. Econ. Geol., 87, 491–509.CrossRefGoogle Scholar
Navrotsky, A., Peradeau McMillan, P. and Coutoures, J. P. (1982): A thermochemical study of glasses and crystals along the joins silica—calcium aluminate and silica—sodium aluminate. Geochim. Cosmochim. Ada, 44, 2039–49.CrossRefGoogle Scholar
Nishida, N., Kimata, M. and Arakawa, Y. (1994) Native zinc, copper and brass in the red-clouded anorthite megacryst as probes of the arc-magmatic process. Naturwissenschaften (in press).CrossRefGoogle Scholar
Notsu, K. (1983) Strontium isotope composition in volcanic rocks from the Northeast Japan arc. J. Volcanol. Geothermal. Res., 18, 531–48.CrossRefGoogle Scholar
Pawley, A. R. and Holloway, J. R. (1993) Water Sources for subduction zone volcanism: new experimental constraints. Science, 260, 664–6.CrossRefGoogle ScholarPubMed
Petrov, I., Mineeva, R. M., Bershov, L. V. and Agel, A. (1993) EPR of [Pb-Pb]3+ mixed valence pairs in amazonite-type microcline. Amer. Mineral., 78, 500–10.Google Scholar
Riebling, E. F. (1966) Structure of sodium aluminosi-licate melts containing at least 50 mol% SiO2 at 1500°C. J. Chem. Phys., 44, 2857–65.CrossRefGoogle Scholar
Salje, E. K. H. (1993) Phase transitions in ferroelastic and co-elastic crystals, Student edn. Cambridge University Press, 229 pp.Google Scholar
Sinton, C. W., Christie, D. M., Coombs, V. L., Nielsen, R. L. and Fisk, M. R. (1993) Near-primary melt inclusions in anorthite phenocrysts from the Galapagos Platform. Earth Planet. Sci. Lett., 119, 527–37.CrossRefGoogle Scholar
Sisson, T. W. and Grove, T. L. (1993) Temperatures and H2O of low-MgO high-alumina basalts. Contrib. Mineral. Petrol, 113, 167–84.CrossRefGoogle Scholar
Smith, J. V. and Brown, W. L. (1988) Feldspar Minerals, 1. Crystal structures, Physical, Chemical, and Microtextural Properties. Springer-Verlag, Berlin, 828 pp.Google Scholar
Smolin, Yu. I., Shepelev, Yu. F. and Ershov, A. S. (1993) The crystal structure of the trimethylsilyl derivative of the seven-membered ring silicate anion — [(CH3)3Si]14[Si7O21], Z. Kristallogr., 203, 73–8.Google Scholar
Sugimura, A. (1960) Zonal arrangement of some geophysical and petrological features in Japan and its environs. J. Fac. Sci. Univ. Tokyo, Sec. II, 12, 133–53.Google Scholar
Taylor, M. and Brown, G. E. (1979) Structure of mineral glasses. I. The feldspar glasses NaAlSi3O8, KA1-Si3Og, CaAl2Si2O8 . Geochim. Cosmochim. Acta, 43, 61–77.CrossRefGoogle Scholar
Vukadinovic, D. (1993) Are Sr enrichments in arc basalts due to plagioclase accumulation?. Geology, 21, 611–4.2.3.CO;2>CrossRefGoogle Scholar
Wilson, M. (1993) Igneous Petrogenesis. Chapman & Hall, London, 466 pp.Google Scholar
Winkler, A., Hoebbel, D., Grimmer, A. R. and Wieker, W. (1983) Ba7[Si7O21]10BaCl2a compound with a new type of cyclic silicate anions. Rev. Chim. Miner., 20, 801–6.Google Scholar