Abstract
New internally consistent interpretations of the phases represented by the high pressure phase shock wave data for an albite-rich rock, Jadeite, and nepheline in the system NaAlSiO4-SiO2, are obtained using the results of static high pressure investigations, and the recent discovery of the hollandite phase in a shocked meteorite. We conclude that nepheline transforms directly to the calcium ferrite structure, whereas albite transforms possibly to the hollandite structure. Shock Hugoniots for the other plagioclase and alkali feldspars also indicate that these transform to hollandite structures. The pressure-volume data at high pressure could alternatively represent the compression of an amorphous phase. Moreover, the shock Hugoniot data are expected to reflect the properties of the melt above shock stresses of 60–80 GPa. The third order Birch-Murnaghan equation of state parameters are: Kos=275±38 GPa and K′os=1.6±1.5 for the calcium ferrite type NaAlSiO4, Kos=186±33 GPA and K′os=2.6±1.7 for the albite-rich hollandite, Kos=236±45 GPa and K′os=2.3±2.0 for the orthoclase-rich hollandite, and Kos=190 to 210 GPa and K′os≈2.2 for the anorthite-rich hollandite.
Similar content being viewed by others
References
Ahrens TJ (1989) Equation of state of earth media, — #DNA-TR-88-265, pp 48
Ahrens TJ, Jeanloz R (1987) Pyrite: Shock compression, isentropic release, and composition of the Earth's core. J Geophys Res 92:10363–10375
Ahrens TJ, Liu H-P (1973) A shock-induced phase change in orthoclase. J Geophys Res 78:1274–1278
Ahrens TJ, Peterson CF, Rosenberg JT (1969) Shock compression of feldspars. J Geophys Res 74:2727–2746
Birch F (1978) Finite strain isotherm and velocities for single-crystal and polycrystalline NaCl at high pressures and 300 K. J Geophys Res 83:1257–1268
Boslough MB, Rigden SM, Ahrens TJ (1986) Hugoniot equation of state of anorthite glass and lunar anorthosite. Geophys J R Astron Soc 84:455–473
Duffy TS, Ahrens TJ, Lange MA (1991) The equation of state of brucite Mg(OH)2. J Geophys Res (in press)
Grady DE, Murri WI, DeCarli PS (1975) Hugoniot sound velocities and phase transformation in two silicates. J Geophys Res 80:4857–4861
James OB (1969) Jadeite: Shock-induced formaton from oligoclase, Ries Crater, Germany. Science 165:1005–1008
Jeanloz R (1989) Shock wave equation of state and finite strain theory. J Geophys Res 94:5873–5886
Jeanloz R, Ahrens TJ (1980) Anorthite, thermal equation of state to high pressures. Geophys J R Astron Soc 62:529–549
Kandelin J, Weidner DJ (1988) The single-crystal elastic properties of Jadeite. Phys Earth Planet Inter 50:251–260
Liu L (1977) High pressure NaAlSiO4: The first silicate calcium ferrite isotype. Geophys Res Lett 4:183–186
Liu L (1978) High-pressure transformations of albite, Jadeite, and nepheline. Earth Planet Sci Lett 37:438–444
Liu L, Bassett WA (1986) Elements, Oxides, and Silicates. University Press, Oxford
Madon M, Castex J, Peyronneau J (1989) A new aluminocalcic high-pressure phase as a possible host of calcium and aluminum in the lower mantle. Nature 342:422–425
McQueen RJ, Marsh SP, Fritz JN (1967) Hugoniot equation of state of twelve rocks. J Geophys Res 72:4999–5036
Mori H (1990) Hollandite NaAlSi3O8 from shocked meteorite, in Jpn Soc High Press Sci Tech 31st High-Press Conf, Osaka, November 1990 (abs)
Reid AF, Ringwood AE (1968) High-pressure NaAlO2 an α-NaFeO2 isotype. Inorg Chem 1: 443–445
Reid AF, Ringwood AE (1969) Newly observed high pressure transformations in Mn3O4, CaAl2O4 and ZrSiO4. Earth Planet Sci Lett 6:205–208
Ringwood AE, Reid AF, Wadlsey AD (1967) High-pressure KAlSi3O8, an aluminosilicate with six-fold coordination. Acta Crystallogr 23:1093–1095
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. U.S.G.S. Bull. No. 1452 — G.S.A. Bulletin 1452, p 456
Simakov GV, Trunin RF (1980) The compression of minerals by shock waves. Izv Earth Phys 16:134–137
Simakov GV, Pavlovsky NM, Kalashnikov NG, Trunin RF (1974) Shock compressibility of twelve minerals. Izv Phys Solid Earth 10:11–17
Stolper EM, Ahrens TJ (1987) On the nature of pressure-induced coordination changes in silicate melts and glasses. Geophys Res Lett 14:1231–1233
Tan H, Ahrens TJ (1990) Shock-induced polymorphic transition in quartz, carbon, and boron nitride. J Appl Phys 67:217–224
Telegin GS, Antoshev VG, Bugayeva VA, Simakov GV, Trunin RF (1980) Calculated determination of Hugoniot curves of rocks and minerals. Izv Earth Phys 16:319–324
Trunin RF, Simakov GV, Podurets MA, Moiseyev BN, Popov LV (1970) Dynamic compressibility of quartz and quartzite at high pressure. Izv Earth Phys 1:3–12
Wackerle J (1962) Shock-wave compression of quartz. J Appl Phys 33:922–937
Weidner DJ, Bass JD, Ringwood AE, Sinclair W (1982) The singlecrystal elastic moduli of stishovite. J Geophys Res 87:4740–4746
Williams Q, Jeanloz R (1989) Static amorphization of anorthite at 300 K and comparison with diaplectic glass. Nature 338:413–415
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Sekine, T., Ahrens, T.J. Shock-induced transformations in the system NaAlSiO4—SiO2: a new interpretation. Phys Chem Minerals 18, 359–364 (1992). https://doi.org/10.1007/BF00199416
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00199416