Abstract
The mineralogy and chemistry of some analcime-rich igneous rocks — analcimites from the potassic Highwood province, Montana, and an analcime tinguaite from the Dunedin Volcanic Complex, New Zealand — have been investigated to obtain some indication of the K→Na substitution in natural analcimes. The analcimes have potash-poor compositions, the K2O revealed by the rock analyses being represented in the mode mainly by Or-rich feldspar (hyalophane or sanidine). These data and the evidence afforded by other analcime compositions confirm earlier conclusions based on experimental studies (Peters, Luth and Tuttle, 1966), namely that analcime solid solutions may contain up to approximately 2% K2O. Some aspects of analcime-rich igneous assemblages are also discussed.
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Barrer, R. M., and J. W. Baynham: The hydrothermal chemistry of the silicates. Part VII. Synthetic potassium aluminosilicates. J. Chem. Soc. 2882–2891 (1956).
- -, and McCallum: Hydrothermal chemistry of silicates. Part V. Compounds structurally related to analcite. J. Chem. Soc. 4035–4041 (1953).
Beattie, I. R.: The structure of analcite and ion-exchanged forms of analcite. Acta Cryst. Camb. 7, 357–359 (1953).
Coleman, A. P.: A new analcite rock from Lake Superior. J. Geol. 7, 431–436 (1899).
Coombs, D. S.: X-ray observations on wairakite and non-cubic analcime. Mineral. Mag. 30, 699–708 (1955).
—: Dunedin Volcanic Complex and Waipiata Volcanic Formation. N. Z. Geol. Surv. Handbook 51, 54–67 (1965).
—, and J. T. Whetten: Composition of analcime from sedimentary and burial metamorphic rocks. Bull. Geol. Soc. Am. 78, 269–282 (1967).
Crook, K. A. W.: Alkali feldspars from the Crowsnest Volcanics, Alberta. Can. Mineral. 7, 253–263 (1962).
Cross, W.: An analcite-basalt from Colorado. J. Geol. 5, 684–693 (1897).
Deer, W. A., R. A. Howie, and J. Zussman: Rock-forming minerals, vol. 4. Framework silicates. London: Longmans 1963.
Fudali, R.: Experimental studies bearing on the origin of pseudoleucite and associated problems of alkalic rock systems. Bull. Geol. Soc. Am. 74, 1101–1126 (1963).
Grassi-Cristaldi, G., and F. Scafile: Contributo al comportamento di alcune zeoliti. Ann. chim. appl. Roma 19, 136–140 (1929). (Min. Abs. 5–83).
Green, D. H., and A. E. Ringwood: The genesis of basaltic magmas. Contr. Mineral. and Petrol. 15, 103–190 (1967a).
— —: The stability fields of aluminous pyroxene peridotite and garnet peridotite and their relevance in upper mantle structure. Earth and Planetary Sci. Letters 3, 151–160 (1967b).
Greenwood, H. J.: The system NaAlSi2O6-H2O-argon: Total pressure and water pressure in metamorphism. J. Geophys. Research 66, 3923–3946 (1961).
Hamilton, D. L., and W. S. Mackenzie: Phase-equilibrium studies in the system NaAlSiO4 (nepheline)-KAlSiO4(kalsilite)-SiO2-H2O. Mineral. Mag. 34 (Tilley vol.), 214–231 (1965).
Hoss, H., and R. Roy: Zeolite studies III: On natural phillipsite, gismondite, harmotome, chabazite, and gmelinite. Beitr. Mineral. u. Petrogr. 7, 389–408 (1960).
Ito, K., and G. C. Kennedy: Melting and phase relations in a natural peridotite to 40 kilobars. Am. J. Sci. 265, 519–538 (1967).
Kushiro, I.: Petrology of the Atumi dolerite, Japan. J. Fac. Sci. Univ. Tokyo 15, 135–202 (1964).
Larsen, E. S.: Petrographic province of Central Montana. Bull. Geol. Soc. Am. 51, 887–948 (1940).
—: Igneous rocks of the Highwood Mountains, Montana. Part II. The extrusive rocks. Bull. Geol. Soc. Am. 52, 1733–1752 (1941).
—, and B. F. Buie: Potash analcime and pseudoleucite from the Highwood Mountains, Montana. Am. Mineralogist 23, 837–849 (1938).
Lonsdale, J. T.: Analcite from Brewster County, Texas. Am. Mineralogist 13, 449–450 (1928).
Lyons, J. B.: Igneous rocks of the northern Big Belt Range, Montana. Bull. Geol. Soc. Am. 55, 445–472 (1944).
Mackenzie, J. D.: The Crowsnest Volcanics. Geol. Surv. Canada Mus. Bull. 4, 1–33 (1914).
Marshall, P.: The geology of Dunedin (New Zealand). Quart. J. Geol. Soc. London 62, 381–424 (1906).
—: A natrolite tinguaite from Dunedin. Trans. N. Z. Inst. 58, 533–535 (1928).
—: Zeolite minerals as original components of igneous rocks. New Zealand J. Sci. Technol. 28 (for 1946), 35–52 (1947).
Nockolds, S. R.: Average chemical composition of some igneous rocks. Bull. Geol. Soc. Am. 65, 1007–1032 (1954).
Orville, P.: Feldspar investigations. Carnegie Inst. Wash. Year Bk. 57, 206–209 (1958).
Peters, Tj., W. C. Luth, and O. F. Tuttle: The melting of analcite solid solutions in the system NaAlSiO4-NaAlSi3O8-H2O. Am. Mineralogist 51, 736–753 (1966).
Pirsson, L. V.: Petrography and geology of the igneous rocks of the Highwood Mountains, Montana. U. S. Geol. Survey Bull. 237, 1–208 (1905).
Saha, P.: Geochemical and X-ray investigation of natural and synthetic analcites. Am. Mineralogist 44, 300–313 (1959).
—: The system NaAlSiO4(nepheline)-NaAlSi3O8(albite)-H2O. Am. Mineralogist 46, 859–884 (1961).
Tiba, T.: Petrology of the alkaline rocks of the Takakusayama district, Japan. Sci. Repts. Tôhoku Univ. 9 (Ser. III), 541–610 (1966).
Tilley, C. E.: Nepheline-alkali feldspar parageneses. Am. J. Sci. 252, 65–75 (1954).
—: Problems of alkali rock genesis. Quart. J. Geol. Soc. London 113, 323–360 (1958).
Turner, F. J., and J. Verhoogen: Igneous and metamorphic petrology, 2nd edit. New York: McGraw-Hill 1960.
Washington, H. S.: Sölvsbergite and tinguaite from Essex County, Mass. Am. J. Sci. 6, 182–187 (1898).
Weed, W. H., and L. V. Pirsson: Geology of the Little Belt Mountains, Montana. Ann. Rept. U. S. Geol. Surv. 20 (1900).
Wilkinson, J. F. G.: The petrology of a differentiated teschenite sill near Gunnedah, New South Wales. Am. J. Sci. 256, 1–39 (1958).
—: Mineralogical, geochemical, and petrogenetic aspects of an analcite-basalt from the New England district of New South Wales. J. Petrology 3, 192–214 (1962).
—: Some natural analcime solid solutions. Mineral. Mag. 33, 498–505 (1963).
—: Some feldspars, nephelines, and analcimes from the Square Top intrusion, Nundle, N. S. W. J. Petrology 6, 420–444 (1965).
—:, and J. T. Whetten: Some analcime-bearing pyroclastic and sedimentary rocks from New South Wales. J. Sediment. Petrol. 34, 543–553 (1964).
Yagi, K.: Petrochemical studies on the alkalic rocks of the Morotu district, Sakhalin. Bull. Geol. Soc. Am. 64, 769–810 (1953).
Yoder, H. S.: The jadeite problem. Am. J. Sci. 248, 225–248 (1950).
—: Zeolites-analcite. Carnegie Inst. Wash. Year Bk. 53, 121–122 (1954).
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Wilkinson, J.F.G. Analcimes from some potassic igneous rocks and aspects of analcime-rich igneous assemblages. Contr. Mineral. and Petrol. 18, 252–269 (1968). https://doi.org/10.1007/BF00398895
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DOI: https://doi.org/10.1007/BF00398895