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Stability of the assemblage albite plus forsterite at high temperatures and pressures with petrologic implications

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Abstract

The maximum limits of the assemblage albiteforsterite have been determined experimentally at high pressures and temperatures. At subsolidus temperatures, albite plus forsterite is replaced at high pressures by jadeitic clinopyroxene and enstatitic orthopyroxene. The boundary for this reaction lies within experimental uncertainity of that for jadeite=albite+nepheline. Melting of albite+forsterite at high pressures produces enstatite+liquid, which is different from the low-pressure eutectic behavior. Melting rates are very slow and several hundred hours are required to establish equilibrium near the solidus. The subsolidus boundary for albite plus forsterite lies near that for sanidine plus forsterite, but with a shallower slope which more closely matches that of anorthite plus forsterite. Both albite plus forsterite and anorthite plus forsterite are replaced at high pressures by an assemblage containing clinopyroxene plus orthopyroxene, unlike sanidine plus forsterite, which is replaced by a feldspathoid plus orthopyroxene. The presence of sodium enlarges the depth region over which plagioclase lherzolite can stably exist; it may also stabilize alkali feldspar plus olivine in crustal rocks.

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References

  • Bell PM, Davis BTC (1969) Melting relations in the system jadeitediopside at 30 and 40 kilobars. Am J Sci 267A:17–32

    Google Scholar 

  • Bell PM, Roseboom EH Jr (1969) Melting relations of Jadeite and albite to 45 kilobars with comments on melting diagrams of binary systems at high pressures. Mineral Soc Am Spec Paper 2:151–161

    Google Scholar 

  • Birch F, Le Comte P (1960) Temperature-pressure plane for albite composition. Am J Sci 258:209–217

    Google Scholar 

  • Boettcher AL, Burnham CW, Windom KE, Bohlen SR (1982) Liquids, glasses, and the melting of silicates to high pressures. J Geol 90:127–138

    Google Scholar 

  • Boettcher AL, Mysen BO, Allen JC (1973) Techniques for the control of water fugacity and oxygen fugacity for experimentation in solid-media high-pressure apparatus. J Geophys Res 78:5898–5901

    Google Scholar 

  • Boettcher AL, Windom KE, Bohlen SR, Luth RW (1981) Lowfriction, anhydrous, low-to high-temperature furnace sample assembly for piston-cylinder apparatus. Rev Sci Inst 52(12):1903–1904

    Google Scholar 

  • Boyd FR, England JL (1960) Apparatus for phase-equilibrium measurements at pressures up to 50 kilobars and temperatures up to 1750° C. J Geophys Res 65:741–748

    Google Scholar 

  • Carpenter MA (1980) Mechanisms of exsolution in sodic pyroxenes. Contrib Mineral Petrol 71:289–300

    Google Scholar 

  • Carpenter MA (1981) Time-temperature-transformation (TTT) analysis of cation disordering in omphacite. Contrib Mineral Petrol 78:433–440

    Google Scholar 

  • Clark SP Jr, Ringwood AE (1964) Density distribution and constitution of the mantle. Rev Geophys 2:35–88

    Google Scholar 

  • Coleman RG (1961) Jadeite deposits of the Clear Creek Area, New Idria District, San Benito County, Calif. J Petrol 2:209–247

    Google Scholar 

  • Gasparik T (1986) The compositions of coexisting clinopyroxene and orthopyroxene on the enstatite-jadeite join. EOS 67:368

    Google Scholar 

  • Goldsmith JR (1980) The melting and breakdown reactions of anorthite at high pressures and temperatures. Am Mineral 65:272–284

    Google Scholar 

  • Gupta AK, Green DH, Taylor WR (1987) The liquidus surface of the system forsterite-nepheline-silica at 28 kb. Am J Sci 287:560–565

    Google Scholar 

  • Hariya Y, Kennedy GC (1968) Equilibrium study of anorthite under high pressure and high temperature. Am J Sci 266:193–203

    Google Scholar 

  • Harlow GE, Dowty E (1982) K-bearing omphacite: significance for mantle assemblages. Geol Soc Am Abst with Prog 14:507

    Google Scholar 

  • Hays JF (1967) Lime-alumina-silica. Carnegie Inst Washington Yearb 65:234–239

    Google Scholar 

  • Holland TJB (1980) The reaction albite=Jadeite+quartz determined experimentally in the range 600–1200° C. Am Mineral 65:129–134

    Google Scholar 

  • Kushiro I (1965) Coexistence of nepheline and enstatite at high pressures. Carnegie Inst Washington Yearb 64:109–112

    Google Scholar 

  • Kushiro I (1968) Compositions of magmas formed by partial zone melting of the earth's upper mantle. J Geophys Res 73:619–634

    Google Scholar 

  • Kushiro I, Yoder HS Jr (1966) Anorthite-forsterite and anorthiteenstatite reactions and their bearing on the basalt-eclogite transformation. J Petrol 7:337–362

    Google Scholar 

  • Lindsley DH, Dixon SA (1976) Diopside-enstatite equilibria at 850° C to 1400° C, 5 to 35 kb. Am J Sci 276:1285–1301

    Google Scholar 

  • Luth RW, Boettcher AL (1986) Hydrogen and the melting of silicates. Am Mineral 71:264–276

    Google Scholar 

  • Luth WC, Ingamells CO (1965) Gel preparation of starting materials for hydrothermal experimentation. Am Mineral 50:255–258

    Google Scholar 

  • MacGregor ID (1974) The system MgO-Al2O3-SiO2: solubility of Al2O2 in enstatite for spinel and garnet peridotite compositions. Am Mineral 59:110–119

    Google Scholar 

  • Matsumoto T, Tokonami M, Morimoto N (1975) The crystal structure of omphacite. Am Mineral 60:634–641

    Google Scholar 

  • Orville PM (1972) Plagioclase cation exchange equilibria with aqueous chloride solution: results at 700° C and 2000 bars in the presence of quartz. Am J Sci 272:234–272

    Google Scholar 

  • Pierson ML, Windom KE (1986) Experimental determination of pyroxene compositions on the jadeite-enstatite join at 25 kbar pressure. Geol Soc Am Abst with Prog 18:718

    Google Scholar 

  • Presnall DC, Brenner NL, O'Donnell TH (1973) Drift of Pt/Pt10Rh and W3Re/W25Re thermocouples in single-stage piston-cylinder apparatus. Am Mineral 58:771–777

    Google Scholar 

  • Robie RA, Hemingway BS, Fisher JR (1978) Thermodynamic properties of minerals and related substances at 298.15 K and 1 bar (105 Pascals) pressure and at higher temperatures. US Geol Survey Bull 1452

  • Rossi G, Smith DC, Ungaretti L, Domeneghetti MC (1983) Crystal-chemistry and cation ordering in the system diopside-jadeite: A detailed study by crystal structure refinement. Contrib Mineral Petrol 83:247–258

    Google Scholar 

  • Schairer JF, Bowen NL (1956) The system Na2O-Al2O3-SiO2. Am J Sci 254:129–195

    Google Scholar 

  • Schairer JF, Yoder HS Jr (1961) Crystallization in the system nepheline-forsterite-silica at one atmosphere pressure. Carnegie Inst Washington Yearb 60:141–144

    Google Scholar 

  • Seifert F, Mysen BO, Virgo D (1982) Three-dimensional network structure of quenched melts (glass) in the systems SiO2- NaAlO2, SiO2-CaAl2O4, SiO2-MgAl2O4. Am Mineral 67:696–717

    Google Scholar 

  • Taylor M, Brown GE (1979) Structure of mineral glasses: I. The feldspar glasses NaAlSi3O8, KAlSi3O8, CaAl2Si2O8. Geochim Cosmochim Acta 43:61–75

    Google Scholar 

  • Tuttle OF, Bowen NL (1958) Origin of granite in the light of experimental studies in the system NaAlSi3O8-KAlSi3O8- SiO2-H2O. Geol Soc Am Mem 74

  • Tuttle OF, Smith JV (1958) The nepheline-kalsilite system II. Phase relations. Am J Sci 256:571–589

    Google Scholar 

  • Unger CP, Windom KE (1985) Kinetics of the melting of albite plus forsterite at high pressures. Geol Soc Am Abst with Prog 17 738

    Google Scholar 

  • Wendlandt RF, Eggler DH (1980) Stability of sanidine+forsterite and its bearing on the genesis of potassic magmas and the distribution of potassium in the upper mantle. Earth Planet Sci Lett 51:215–220

    Google Scholar 

  • Windom KE, Boettcher AL (1976) The effect of reduced activity of anorthite on the reaction grossular+quartz=anorthite+wollastonite: a model for plagioclase in the earth's lower crust and upper mantle. Am Mineral 61:889–896

    Google Scholar 

  • Windom KE, Boettcher AL (1981) Phase relations for the joins jadeite-enstatite and jadeite-forsterite at 28 kb and their bearing on basalt genesis. Am J Sci 281:335–351

    Google Scholar 

  • Yoder HS Jr (1964) Genesis of principal basalt magmas. Carnegie Inst Washington Yearb 63:97–101

    Google Scholar 

  • Yoder HS Jr, Chayes F (1986) Linear alkali correlation in oceanic alkalic basalts. Bull Geol Soc Finland 58(1):81–94

    Google Scholar 

  • Yoder HS Jr, Tilley CE (1962) Origin of basalt magmas: an experimental study of natural and synthetic rock systems. J Petrol 3:342–532

    Google Scholar 

  • Zen E-A (1966) Construction of pressure-temperature diagrams for multicomponent systems after the method of Schreinemakers — a geometric approach. US Geol Surv Bull 1225

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  1. Department of Earth Sciences, Iowa State University, 50011, Ames, Iowa, USA

    Kenneth E. Windom & Clifford P. Unger

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  1. Kenneth E. Windom
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  2. Clifford P. Unger
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Windom, K.E., Unger, C.P. Stability of the assemblage albite plus forsterite at high temperatures and pressures with petrologic implications. Contr. Mineral. and Petrol. 98, 390–400 (1988). https://doi.org/10.1007/BF00375188

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