Viscosity of the albite melt to 7 GPa at 2000 K

被引：36

作者：

Mori, S ^{[1
]}

Ohtani, E ^{[1
]}

Suzuki, A ^{[1
]}

机构：

[1] Tohoku Univ, Inst Mineral Petrol & Econ Geol, Sendai, Miyagi 9808578, Japan

来源：

EARTH AND PLANETARY SCIENCE LETTERS | 2000年 / 175卷 / 1-2期

关键词：

viscosity; density; albite; silicate melts; high pressure;

D O I：

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

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 [地球物理学]; 070902 [地球化学];

摘要：

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 a 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.

引用

页码：87 / 92

页数：6

共 30 条

[1]

ANOTHER STEP TOWARD AN INTERNATIONAL PRACTICAL PRESSURE SCALE [J].

BEAN, VE ;

AKIMOTO, S ;

BELL, PM ;

BLOCK, S ;

HOLZAPFEL, WB ;

MANGHNANI, MH ;

NICOL, MF ;

STISHOV, SM .

PHYSICA B & C, 1986, 139 (1-3) :52-54

[2]

COORDINATION OF FE, GA AND GE IN HIGH-PRESSURE GLASSES BY MOSSBAUER, RAMAN AND X-RAY ABSORPTION-SPECTROSCOPY, AND GEOLOGICAL IMPLICATIONS [J].

FLEET, ME ;

HERZBERG, CT ;

HENDERSON, GS ;

CROZIER, ED ;

OSBORNE, MD ;

SCARFE, CM .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1984, 48 (07) :1455-1466

[3]

THE STRUCTURES OF ALBITE AND JADEITE COMPOSITION GLASSES QUENCHED FROM HIGH-PRESSURE [J].

HOCHELLA, MF ;

BROWN, GE .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1985, 49 (05) :1137-1142

[4]

NONLINEAR TEMPERATURE-DEPENDENCE OF LIQUID VOLUMES IN THE SYSTEM ALBITE-ANORTHITE-DIOPSIDE [J].

KNOCHE, R ;

DINGWELL, DB ;

WEBB, SL .

CONTRIBUTIONS TO MINERALOGY AND PETROLOGY, 1992, 111 (01) :61-73

[5]

DETERMINATION OF PHASE-TRANSITION PRESSURES OF ZNTE UNDER QUASI-HYDROSTATIC CONDITIONS [J].

KUSABA, K ;

GALOISY, L ;

WANG, J ;

VANGHAN, MT ;

WEIDNER, DJ .

PURE AND APPLIED GEOPHYSICS, 1993, 141 (2-4) :643-652

[6]

VISCOSITY AND STRUCTURAL-CHANGES OF ALBITE (NAALSI3O8) MELT AT HIGH-PRESSURES [J].

KUSHIRO, I .

EARTH AND PLANETARY SCIENCE LETTERS, 1978, 41 (01) :87-90

[7]

CHANGES IN VISCOSITY AND STRUCTURE OF MELT OF NAALSI2O6 COMPOSITION AT HIGH-PRESSURES [J].

KUSHIRO, I .

JOURNAL OF GEOPHYSICAL RESEARCH, 1976, 81 (35) :6347-6350

[8]

VISCOSITIES OF BASALT AND ANDESITE MELTS AT HIGH-PRESSURES [J].

KUSHIRO, I ;

YODER, HS ;

MYSEN, BO .

JOURNAL OF GEOPHYSICAL RESEARCH, 1976, 81 (35) :6351-6356

[9]

Liu J, 1996, PHYS CHEM MINER, V23, P11

[10]

ELASTIC-MODULI OF DIAMOND AS A FUNCTION OF PRESSURE AND TEMPERATURE [J].

MCSKIMIN, HJ ;

ANDREATC.P .

JOURNAL OF APPLIED PHYSICS, 1972, 43 (07) :2944-+

← 1 2 3 →