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Melt-vapor solubilities and elemental partitioning in peraluminous granite-pegmatite systems: experimental results with Macusani glass at 200 MPa

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Abstract

Vapor-saturated experiments at 200 MPa with peraluminous, lithophile-element-rich rhyolite obsidian from Macusani, Peru, reveal high miscibility of H2O and silicate melt components. The H2O content of melt at saturation (11.5+-0.5 wt.%) is almost twice that predicted by existing melt speciation models. The corresponding solubility of melt components in vapor decreases from 15 wt.% dissolved solids (750°–775° C) to 9 wt.% at 600° C. With regard to major and most minor components, macusanite melt dissolves congruently in vapor. Among the elements studied (B, P, F, Li, Rb, Cs, Be, Sr, Ba, Nb, Zr, Hf, Y, Pb, Th, U, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, and Tm), only boron has a vapor/melt partition coefficient (D[B]) consistently ≥1 at superliquidus temperatures (>645° C). Phosphorus and fluorine behave similarly, with D[P] and D[F]<0.5. Little or no significant vapor/melt fractionation is evident among most periodic groups (alkalis, alkaline earths, Zr/Hf, or the REE). The temperature dependence of vapor/melt partition coefficients is generally greatest for cations with charge ≥ +3 (except Nb and U); most vapor/melt partition coefficients for trace elements increase with decreasing temperature to the liquidus. Crystallization proceeds by condensation of crystalline phases from vapor; most coexisting melts are aphyric. Changes in the major element content of melt are dominated by the mineral assemblage crystallized from vapor, which includes subequal proportions of white mica, quartz, albite, and orthoclase. The volumetric proportion of (mica + or-thoclase)/albite increases slightly with decreasing T, creating a sodic, alkaline vapor. Vapor deposition of topaz (T≤500° C), which consumes F from melt, returns K/Na ratios of melt to near unity with the vapor-deposition of albite. The abundances of most trace elements in residual melt change little with the crystallization of major phases, but in some cases are strongly controlled by the deposition of accessory phases including apatite (T≤550° C), which depletes the melt in P and REE. Below the liquidus, boron increasingly favors the vapor over melt with decreasing temperatures.

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References

  • Barnes VE, Edwards G, McLaughlin WA, Friedman I, Joensuu O (1970) Macusanite occurrence, age, and composition, Macu-sani, Peru. Geol Soc Amer Bull 81:1539–1546

    Google Scholar 

  • Burnham CW, Jahns RH (1962) A method for determining the solubility of water in silicate melts. Amer J Sci 260:721–745

    Google Scholar 

  • Burnham CW, Nekvasil H (1986) Equilibrium properties of granite pegmatite melts. Amer Mineral Jahns Mem 71:239–263

    Google Scholar 

  • Candela PA, Holland HD (1986) A mass transfer model for copper and molybdenum in magmatic hydrothermal systems: The origin of porphyry-type ore deposits. Econ Geol 81:1–19

    Google Scholar 

  • Carron JP, Lagache M (1980) Etude experimentale du fractione-ment des elements Rb, Cs, Sr, et Ba entre feldspaths alcalins, solutions hydrothermales, et liquides silicates dans le systeme Q Ab Or. H2O a 2 kbar entre 700 et 800° C. Bull Mineral 103:571–578

    Google Scholar 

  • Černý P (ed) (1982) Granitic Pegmatites in Science and Industry. Mineral Assoc Can Short Course Hndbk 8:555 p

  • Černý P, Meintzer RE, Anderson AJ (1985) Extreme fractionation in rare-element granite pegmatites: Selected examples of data and mechanisms. Can Mineral 23:381–421

    Google Scholar 

  • Chappell BW, White AJR (1974) Two contrasting granite types. Pacific Geol 8:173–174

    Google Scholar 

  • Charles RJ (1967) Activities of Li2O-, Na2O- and K2O-SiO2 solutions. J Amer Ceram Soc 50:631–641

    Google Scholar 

  • Cullers RL, Medaris LG, Haskins LA (1973) Experimental studies of the distributions of rare earths as trace elements among silicate minerals and liquids and water. Geochim Cosmochim Acta 37:1499–1512

    Google Scholar 

  • De Jong BHWS, Brown GE Jr (1980) Polymerization of silicate and aluminate tetrahedra in glasses, melts, and aqueous solutions — II. The network modifying effects of Mg+2, K+, Na+, Li+, OH−, F+, Cl+, H2O, CO2, and H3O+ on silicate polymers. Geochim Cosmochim Acta 44:1627–1642

    Google Scholar 

  • De Jong BHWS, Keefer KD, Brown GE Jr, Taylor CM (1981) Polymerization of silicate and aluminate tetrahedra in glasses, melts, and aqueous solutions — III. Local silicon environments and internal nucleation in silicate glasses. Geochim Cosmochim Acta 45:1291–1308

    Google Scholar 

  • Dingwell DB (1985) The structure and properties of fluorine-rich silicate melts: Implications for granite petrogenesis (abstr). In: Taylor RP, Strong DF (eds) Granite-related mineral deposits. Can Inst Mining Extended Abstr of Conf on Granite-related mineral deposits, Halifax, pp 72–81

  • Dingwell DB, Harris DM, Scarfe CM (1984) The solubility of H2O in the system SiO2-Al2O3-Na2O-K2O at 1 and 2 kbar. J Geol 92:387–395

    Google Scholar 

  • Flynn RT, Burnham CW (1978) An experimental determination of rare earth partition coefficients between a chloride containing vapor phase and silicate melts. Geochim Cosmochim Acta 42:685–701

    Google Scholar 

  • Goad BE, Černý P (1981) Peraluminous pegmatitic granites and their pegmatite aureoles in the Winnipeg River district, south-eastern Manitoba. Can Mineral 19:177–194

    Google Scholar 

  • Hamilton DL, Oxtoby S (1986) Solubility of water in albite-melt determined by the weight-loss method. J Geol 94:626–630

    Google Scholar 

  • Hards NJ (1976) Distribution of elements between the fluid phase and silicate melt phase of granites and nepheline syenites. Progress in experimental petrology. Nat Env Res Council Publ Ser 3:88–980

    Google Scholar 

  • Hayashi S, Kirkpatrick RJ, Dingwell DB (1987) Mass NMR study of F-containing Na2O-Al2O3-SiO2 glass (abstr) EOS 68:436

    Google Scholar 

  • Hervig RL, Williams P (1988) SIMS microanalysis of minerals and glasses for H and D. In: Secondary Mass Spectrometry, SIMS VI. Springer, Series in Chemical Physics, in press

  • Holdaway MJ, Dutrow BL, Borthwick J, Shore P, Harmon RS, Hinton RW (1986) H content of staurolite as determined by H extraction line and ion microprobe. Amer Mineral 71:1135–1141

    Google Scholar 

  • Hess PC (1987) The role of high field strength cations in silicate melts. In: Kushiro I, Perchuk I (eds) Advances in physical geochemistry. Springer, Berlin Heidelberg New York Tokyo, in press

    Google Scholar 

  • Huffman M, Navrotsky A, Pintchovski FS (1986) Thermochemistry and structure of low pressure chemically vapor deposited and bulk SiO2-P2O5 and SiO2-GeO2 glasses. J Electrochem Soc 133:431–439

    Google Scholar 

  • Jahns RH (1982) Internal evolution of pegmatic bodies. In: Černý P (ed) Granitic pegmatites in science and industry. Mineral Assoc Can Short Course Hndbk 8:293–327

  • Jolliff BL, Papike JJ, Shearer CK, Shimizu N (1987) Inter- and intra-crystal REE systematics of apatite from the Bob Ingersoll pegmatite, Black Hills, South Dakota, (abstr) Geol Soc Amer Abstr Prog 19:719–720

    Google Scholar 

  • Kadik AA, Lebedev YEB (1968) Temperature dependence of the solubility of water in an albite melt at high pressure (in Russian). Geokhim 12:1444–1455 (transl Geochem Int 5:1172–1181

    Google Scholar 

  • Keefer KD (1986) The distribution of non-bridging oxygens and the structure of silicate melts (abstr). Internat Mineral Assoc 14th Gen Mtng Abstr Prog 139

  • Kovalenko VI (1977) Measurement of the Li and Rb distributions in the ongonite-H2O-system. Geochem Int 10:133–140

    Google Scholar 

  • Kovalenko VI, Kovalenko NI (1984) Problems of the origin, orebearing and evolution of rare-mental granitoids. Phys Earth Planet Int 35:51–62

    Google Scholar 

  • Kovalenko VI, Kuz'Min MI, Antipin VS, Petrov LL (1971) Topaz-bearing quartz keratophyre (ongonite), a new variety of subvolcanic igneous vein rock. Dokl Acad Sci USSR Earth Sci Sect 199:132–135

    Google Scholar 

  • London D (1985) Origin and significance of inclusions in quartz: A cautionary example from the Tanco pegmatite, Manitoba. Econ Geol 80:1988–1995

    Google Scholar 

  • London D (1986a) Magmatic-hydrothermal transition in the Tanco rare-element pegmatite: Evidence from fluid inclusions and phase equilibrium experiments. Amer Mineral Jahns Mem 71:376–395

    Google Scholar 

  • London D (1986b) Formation of tourmaline-rich gem pockets in miarolitic pegmatites. Amer Mineral Jahns Mem 71:396–405

    Google Scholar 

  • London D (1987a) Internal differentiation of rare element pegmatites: Effects of boron, phosphorus, and fluorine. Geochim Cosmochim Acta 51:403–420

    Google Scholar 

  • London D (1987b) Phase relations in volatile- and LILE-rich rhyolite melt (abstr). Inter Union Geodesy Geophys 14 Gen Assemb Abstr Vol 2:403

    Google Scholar 

  • London D, Hervig RL (1986) Trace element partitioning in the system macusanite-H2O at 200 MPa (H2O). (abstr) EOS 67:1258

    Google Scholar 

  • London D, Morgan GB VI, Hervig RL (1987a) Differentiation of peraluminous, volatile-rich silicic magmas: An experimental study of Macusani glass (abstr). Geol Soc Amer Abstr Prog 19:749

    Google Scholar 

  • London D, Weaver BL, Hervig RL (1986) Liquidus relations of Macusani rhyolite: An analogue to rare-element granite-peg-matite systems (abstr) Geol Soc Amer Abstr Prog 18:675

    Google Scholar 

  • London D, Zolensky ME, Roedder E (1987b) Diomignite: Natural Li2B4O7 from the Tanco pegmatite, Manitoba. Can Mineral 25:173–180

    Google Scholar 

  • MacMillan PF, Holloway JR (1987) Water solubility in aluminosilicate melts. Contrib Mineral Petrol 97:320–332

    Google Scholar 

  • Mahood G, Hildreth W (1983) Large partition coefficients for trace elements in high-silica rhyolites. Geochim Cosmochim Acta 47:11–30

    Google Scholar 

  • Manning DAC (1981) The effect of fluorine on liquidus phase relationships in the system Oz-Ab-Or with excess water at 1 kb. Contrib Mineral Petrol 76:206–215

    Google Scholar 

  • Manning DAC, Hamilton DL, Henderson CMB, Dempsey MJ (1980) The probable occurrence of interstitial Al in hydrous, F-bearing and F-free aluminosilicate melts. Contrib Mineral Petrol 75:257–262

    Google Scholar 

  • Manning DAC, Henderson P (1984) The behavior of tungsten in granitic melt-vapor systems. Contrib Mineral Petrol 86:286–293

    Google Scholar 

  • Manning DAC, Martin JS, Pichavant ML, Henderson CMB (1984) The effect of F, B, and Li on melt structures in the granite system: Different mechanisms? In: Henderson CMB (ed) Progress in experimental petrology. Nat Env Res Council Publ Ser D 25:36–41

  • Manning DAC, Pichavant M (1985) Volatiles and their bearing on the behaviour of metals in granitic systems. In: Taylor RP, Strong DF (eds) Granite-related mineral deposits. Can Inst Mining Conf, Halifax, pp 184–187

  • Martin JS, Henderson CMB (1984) An experimental study of the effects of small amounts of lithium on the granite system. In: Henderson CMB (ed) Progress in experimental petrology. Nat Env Res Council Publ Ser D 25:30–35

  • Morgan GB VI, London D (1987a) Behavior of boron and tourmaline stability in granitic systems (abstr.). Geol Soc Amer Abstr Prog 19:777–778

    Google Scholar 

  • Morgan GB VI, London D (1987b) Alteration of amphibolitic wallrocks around the Tanco rare element pegmatite, Manitoba. Amer Mineral 72:1097–1121

    Google Scholar 

  • Munoz JL, Ludington SD (1974) Fluoride-hydroxyl exchange in biotite. Amer J Sci 274:396–413

    Google Scholar 

  • Nash WP, Crecraft HR (1985) Partition coefficients for trace elements in silicic magmas. Geochim Cosmochim Acta 49:2309–2322

    Google Scholar 

  • Noble DC, Vogel TA, Peterson PS, Landis GP, Grant NK, Jezek PA, McKee EH (1984) Rare-element-enriched, S-type ash-flow tuffs containing phenocrysts of muscovite, andalusite, and sillimanite, southeastern Peru. Geology 12:35–39

    Google Scholar 

  • Pichavant M (1981) An experimental study of the effect of boron on a water saturated haplogranite at 1 kbar vapour pressure. Contrib Mineral Petrol 76:430–439

    Google Scholar 

  • Pichavant M (1983) Melt-fluid interaction deduced from studies of silicate-B2O3-H2O systems at 1 kbar. Bull Mineral 106:201–211

    Google Scholar 

  • Pichavant M (1987) Effects of B and H2O on liquidus phase relations in the haplogranite system at 1 kbar. Amer Mineral 72:1056–1070

    Google Scholar 

  • Pichavant M, Verrera JV, Boulmer S, Brique L, Joron JL, Juteau M, Marin L, Michard A, Sheppard SMF, Treuil M, Vernet M (1987) The Macusani glasses, SE Peru: evidence of chemical fractionation in peraluminous magmas. In: Mysen BO (ed) Magmatic Processes: Physicochemical Principles. Geochem Soc Spec Publ 1:359–373

  • Register ME (1979) Geochemistry and geochronology of the Harding pegmatite, Taos county, New Mexico. MS Thesis, Univ New Mexico, Albuquerque, 145 p

  • Remmele R, Stanton P, McMillan P, Holloway JR (1986) Raman spectra of hydrous glasses along the join quartz-albite (abstr). EOS 67:1274

    Google Scholar 

  • Roy BN, Navrotsky A (1984) Thermochemistry of charge coupled substitutions in silicate glasses: The systems M n/n+l AlO2-SiO2 (M = Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba, Pb). J Amer Ceram Soc 67:606–610

    Google Scholar 

  • Ryerson FJ (1985) Oxide solution mechanisms in silicate melts: Systematic variation in the activity coefficient of SiO2. Geochim Cosmochim Acta 49:637–649

    Google Scholar 

  • Shannon RD (1976) Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Cryst A32:751–767

    Google Scholar 

  • Sorapure R, Hamilton DL (1984) The solubility of water in melts of albite composition with varying additions of fluorine. In: Henderson CMB (ed) Progress in experimental petrology. Nat Env Res Council Publ Ser D 25:28–30

  • Stolper E (1982) The speciation of water in silicate melts. Geochim Cosmochim Acta 46:2609–2620

    Google Scholar 

  • Stopler E, Silver LA, Aines RD (1983) The effects of quenching rate and temperature on the speciation of water in silicate glasses (abstr). EOS 65:339

    Google Scholar 

  • Taylor BE, Foord EE, Friedrichsen H (1979) Stable isotope and fluid inclusion studies of gem-bearing granitic pegmatite-aplite dikes, San Diego County, California. Contrib Mineral Petrol 68:187–205

    Google Scholar 

  • Watson EB, Harrison TM (1983) Zircon saturation revisited: Temperature and composition effects in a variety of crystal magma types. Earth Planet Sci Lett 64:295–304

    Google Scholar 

  • Webster EA (1981) Partitioning of alkali elements, REE, Sc, and Ba between silicic melts and aqueous fluids. MS Thesis, Ariz State Univ, 119 p

  • Webster JD (1987) Experimental study of a F-, Cl- and lithophile element-enriched vitrophyre from Spor Mountain, Utah. PhD dissertation, Ariz State Univ, 208 p

  • Webster JD, Holloway JR, Hervig RL (1987) Phase equilibria and volatile partitioning in a Be, U, and F-enriched vitrophyre from Spor Mountain, Utah, Geochim Cosmochim Acta 51:389–402

    Google Scholar 

  • Webster JD, Holloway JR (1987) Cl, F, and lithophile trace element partitioning between H2O and H2O + CO2-bearing fluids and high-silica rhyolite magmas (abstr). Int Union Geodesy Geophys 14th Gen Assem Abstr, Vol 2:403

    Google Scholar 

  • White AJR, Clemens JD, Holloway JR, Silver LT, Chappel BW, Wall VJ (1986) S-type granites and their probable absence in southwestern North America. Geology 14:115–118

    Google Scholar 

  • Williams P (1981) Ion stimulated desorption of positive halogen ions. Phys Rev B 23:6187–6190

    Google Scholar 

  • Wyborn D, Chappel BW, Johnston RM (1981) Three S-type volcanic suites from the Lachlan Fold Belt, southeastern Australia. J Geophys Res 886:10335–10348

    Google Scholar 

  • Zinner E, Crozaz G (1986a) A method for the quantitative measurement of rare earth elements by ion microprobe. Int J Mass Spectrom Ion Proc 69:17–38

    Google Scholar 

  • Zinner E, Crozaz G (1986b) Ion probe determination of the abundance of all the rare earth elements in single mineral grains. In: Bennington A, Colton RJ, Simons DS, Werner HW (eds) Secondary ion mass spectrometry, SIMS V. Springer, Berlin Heidelberg New York Tokyo, Series in Chemical Physics 44:444–446

    Google Scholar 

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Authors and Affiliations

  1. School of Geology and Geophysics, University of Oklahoma, 73019, Norman, OK

    David London, Richard L. Hervig & George B. Morgan VI

  2. Center for Solid State Science, Arizona State University, 85287, Tempe, AZ

    David London, Richard L. Hervig & George B. Morgan VI

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  1. David London
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London, D., Hervig, R.L. & Morgan, G.B. Melt-vapor solubilities and elemental partitioning in peraluminous granite-pegmatite systems: experimental results with Macusani glass at 200 MPa. Contr. Mineral. and Petrol. 99, 360–373 (1988). https://doi.org/10.1007/BF00375368

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