Viscosity of the albite melt to 7 GPa at 2000 K

Shohei Mori; Eiji Otani; Akio Suzuki

doi:10.1016/S0012-821X(99)00284-8

Viscosity of the albite melt to 7 GPa at 2000 K

Shohei Mori, Eiji Otani, Akio Suzuki

SCI - Earth Science

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

Viscosity of melt at high pressure provides an important clue to understanding the dynamics of magmas in the Earth's deep interior. We measured viscosity of the albite melt to 7 GPa at 2000 K by the falling sphere method using a single crystalline diamond as a density marker. Viscosity of the melt decreases significantly from 5.28 ± 1.78 Pa s at 3 GPa to 0.90 ± 0.34 Pa s at 5 GPa and 0.99 ± 0.27 Pa s at 6 GPa. We observed a further decrease in viscosity of the melt to 0.28 ± 0.06 Pa s at 7 GPa. The change in viscosity with pressure may suggest existence of some structural change in the albite melt at high pressure. (C) 2000 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	87-92
Number of pages	6
Journal	Earth and Planetary Science Letters
Volume	175
Issue number	1-2
DOIs	https://doi.org/10.1016/S0012-821X(99)00284-8
Publication status	Published - 2000 Jan 30

Keywords

Albite
Density
High pressure
Silicate melts
Viscosity

ASJC Scopus subject areas

Geophysics
Geochemistry and Petrology
Earth and Planetary Sciences (miscellaneous)
Space and Planetary Science

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10.1016/S0012-821X(99)00284-8

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title = "Viscosity of the albite melt to 7 GPa at 2000 K",

abstract = "Viscosity of melt at high pressure provides an important clue to understanding the dynamics of magmas in the Earth's deep interior. We measured viscosity of the albite melt to 7 GPa at 2000 K by the falling sphere method using a single crystalline diamond as a density marker. Viscosity of the melt decreases significantly from 5.28 ± 1.78 Pa s at 3 GPa to 0.90 ± 0.34 Pa s at 5 GPa and 0.99 ± 0.27 Pa s at 6 GPa. We observed a further decrease in viscosity of the melt to 0.28 ± 0.06 Pa s at 7 GPa. The change in viscosity with pressure may suggest existence of some structural change in the albite melt at high pressure. (C) 2000 Elsevier Science B.V. All rights reserved.",

keywords = "Albite, Density, High pressure, Silicate melts, Viscosity",

author = "Shohei Mori and Eiji Otani and Akio Suzuki",

note = "Funding Information: We appreciate T. Taniguchi for valuable suggestions and supports on this work. This work was partly supported by the Grants-in-Aid of the Scientific Research (A) of the Ministry of Education, Science, Sport and Culture of the Japanese Government, No. 09304051 to E. Ohtani and No. 10304041 to H. Taniguchi. [FA]",

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T1 - Viscosity of the albite melt to 7 GPa at 2000 K

AU - Mori, Shohei

AU - Otani, Eiji

AU - Suzuki, Akio

N1 - Funding Information: We appreciate T. Taniguchi for valuable suggestions and supports on this work. This work was partly supported by the Grants-in-Aid of the Scientific Research (A) of the Ministry of Education, Science, Sport and Culture of the Japanese Government, No. 09304051 to E. Ohtani and No. 10304041 to H. Taniguchi. [FA]

PY - 2000/1/30

Y1 - 2000/1/30

N2 - Viscosity of melt at high pressure provides an important clue to understanding the dynamics of magmas in the Earth's deep interior. We measured viscosity of the albite melt to 7 GPa at 2000 K by the falling sphere method using a single crystalline diamond as a density marker. Viscosity of the melt decreases significantly from 5.28 ± 1.78 Pa s at 3 GPa to 0.90 ± 0.34 Pa s at 5 GPa and 0.99 ± 0.27 Pa s at 6 GPa. We observed a further decrease in viscosity of the melt to 0.28 ± 0.06 Pa s at 7 GPa. The change in viscosity with pressure may suggest existence of some structural change in the albite melt at high pressure. (C) 2000 Elsevier Science B.V. All rights reserved.

AB - Viscosity of melt at high pressure provides an important clue to understanding the dynamics of magmas in the Earth's deep interior. We measured viscosity of the albite melt to 7 GPa at 2000 K by the falling sphere method using a single crystalline diamond as a density marker. Viscosity of the melt decreases significantly from 5.28 ± 1.78 Pa s at 3 GPa to 0.90 ± 0.34 Pa s at 5 GPa and 0.99 ± 0.27 Pa s at 6 GPa. We observed a further decrease in viscosity of the melt to 0.28 ± 0.06 Pa s at 7 GPa. The change in viscosity with pressure may suggest existence of some structural change in the albite melt at high pressure. (C) 2000 Elsevier Science B.V. All rights reserved.

KW - Albite

KW - Density

KW - High pressure

KW - Silicate melts

KW - Viscosity

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SN - 0012-821X

VL - 175

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JO - Earth and Planetary Sciences Letters

JF - Earth and Planetary Sciences Letters

IS - 1-2

ER -

Viscosity of the albite melt to 7 GPa at 2000 K

Abstract

Keywords

ASJC Scopus subject areas

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