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1991 Fiscal Year Final Research Report Summary

Measurement of physical property and spectroscopy of magmatic silicate melts at high temperature and pressure

Research Project

Project/Area Number 01460067
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 鉱物学(含岩石・鉱床学)
Research InstitutionScience Education Institute of Osaka Prefecture

Principal Investigator

TANIGUCHI Hiromitsu  Science Education Institute of Osaka Pref., Chief Researcher, 主任研究員 (70125251)

Co-Investigator(Kenkyū-buntansha) TAKAHASHI Eiichi  Tokyo Institute of Technology, Associate Professor, 理学部, 助教授 (40144779)
Project Period (FY) 1989 – 1991
KeywordsMagma / Silicate Melt / Physical Property / High Temperature / High Pressure / Diopside / Anorthite / Albite
Research Abstract

It is important to get the knowledge of physical property and strcture of magmatic silicate melts for the better understanding of magmatic process in the Earth. By this reason, we have tried to measure the physical properties such as density, viscosity and the glass-transition temperature of some magmatic silicate melts ; diopside-anorthite and diopside-albite binary joins. The temperature ranged from room temperature to about 1800 0C, and the pressure ranged from 1 b to 20 kb. Based on the experimental results, the relationships between physical properties and physical parameters such as chemical composition and temperature were discussed.
The main results are as follows :
1. The temperature dependence of viscosity of the present silicate melts can be explained using the configurational entropy theory.
2. The configurational entropy of magmatic silicate melts at the glass -transition temperature is the universal constant value, 8.0+1.2 J/K amw, and coincides with the reported value for high-molecular organic substance.
3. The WLF(Williams, Landel, Ferry)-equation may be the universal equation which describe the viscosity-temperature relation of magmatic silicate melt independent of chemical composition. And it may be also applicable to the high-pressure condition.
4. If we recognize the points 1 and 2, we can predict the viscosity and the glass-transition temperature of mixed melt using the suitable mixing model and the data of physical property of the end member melts.

  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] H.Taniguchi: "Densities of melts in the system CaMgSi_2O_6-CaAl_2Si_2O_8 at low and high pressures and their structural significance" Contrile.Mineral.Petrol.103. 325-334 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Taniguchi: "Entropy deperdence of viscosities and the glass-transition temperatur of melts in the system.di.-an." Contrib.Mineral,Petrol.109. 295-303 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Taniguchi: "Universal viscosity-lquation for silicate melts over wide temperature and pressure ranges" J.Volcanol.Geotherm.Res.(1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Taniguchi: "On the volume dependence of viscosity of some magmatic silicate melts"

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Taniguchi: "Viscosity and glass-transition temperature of some silicate melts under low and high presueres.In:Moltem Salt Chemistry and Technology" Trans.Tech.Pab.Switzerland, 787 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H. Taniguchi: "Densities of melts in the system CaMgSi206 -CaA12Si208 at low and high pressures and their structural significance" Contrib. Mineral. Petrol.103. 325-334 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Taniguchi: "Physical properties of silicate melts" Marumo F (ed), Dynamic process of material transport and transformation in the Earth's interior.Terra Sci. Pub. Tokyo. 67-81 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Taniguchi and E. Takahashi: "Viscosity and glass-transition temperature of some silicate melts under low and high pressures." M. Chemla and D. Devilliers (ed), Molten Salt Chemistry and Technology. Trans. Tech. Pub. Switzerland. 245-250 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Taniguchi: "Entropy dependence of viscosity and the glass-transition temperature of melts in the system diopside-anorthite." Contrib. Mineral. Petrol. 109. 295-303 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Taniguchi: "Universal viscosity-equation for silicate melts over wide temperature and pressure ranges." J. Volcanol. Geotherm. Res.1992

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Taniguchi: "On the volume dependence of viscosity of magmatic silicate melts" (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] E. Takahashi: "Speculations on the Archean mantle : Missing link between komatiite and depleted garnet peridotite." J. Geophy. Res.95. 15941-15954 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] E. Takahashi and E. Ito: "Melting phase relations of mantle peridotite up to 25 GPa : Speculations on the origin and evolution of the Earth's mantle" Marumo F (ed), Dynamic process of material transport and tranformation in the Earth's interior. Terra Sci. Pub. Tokyo. 253-275 (1990)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1993-03-16  

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