In-situ measurement of viscosity and density of carbonate melts at high pressure

David P. Dobson, Adrian P. Jones, Richard Rabe, Toshimori Sekine, Kei Kurita, Takashi Taniguchi, Tadashi Kondo, Takumi Kato, Osamu Shimomura, Satoru Urakawa

Research output: Contribution to journalArticle

156 Citations (Scopus)

Abstract

We present the first measurements of carbonate melt viscosity and density at mantle pressures and temperatures and provide important data for modelling carbonatite behaviour within the mantle. Synchrotron radiation was used to observe falling spheres with high atomic number in situ, allowing precise determination of high terminal velocities over short fall distances. The measured viscosities of 1.5 (5) × 10-2 to 5 (2.5) × 10-3 Pas are the lowest of any known terrestrial magma types and these measurements extend the region of measurable viscosity at high pressure by at least 2 orders of magnitude. Accurate measurements of K2Ca(CO3)2 melt density were performed at atmospheric pressure: ρ (g/cm3) = 2.39(2) - 3.85(15) × 10-4T(0C) and are in complete agreement with the predictions of Wolff (1995). The high-pressure density measurements also agree well with molecular dynamics predictions of carbonate melt compressibility.

Original languageEnglish
Pages (from-to)207-215
Number of pages9
JournalEarth and Planetary Science Letters
Volume143
Issue number1-4
Publication statusPublished - Sep 1996
Externally publishedYes

Fingerprint

Carbonates
in situ measurement
carbonates
viscosity
melt
Viscosity
carbonate
mantle
Earth mantle
carbonatite
falling spheres
Pressure measurement
prediction
Synchrotron radiation
compressibility
Compressibility
terminal velocity
atmospheric pressure
Atmospheric pressure
Molecular dynamics

Keywords

  • Carbonatites
  • Density
  • Experimental studies
  • Mantle
  • Metasomatism
  • Viscosity

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

Cite this

Dobson, D. P., Jones, A. P., Rabe, R., Sekine, T., Kurita, K., Taniguchi, T., ... Urakawa, S. (1996). In-situ measurement of viscosity and density of carbonate melts at high pressure. Earth and Planetary Science Letters, 143(1-4), 207-215.

In-situ measurement of viscosity and density of carbonate melts at high pressure. / Dobson, David P.; Jones, Adrian P.; Rabe, Richard; Sekine, Toshimori; Kurita, Kei; Taniguchi, Takashi; Kondo, Tadashi; Kato, Takumi; Shimomura, Osamu; Urakawa, Satoru.

In: Earth and Planetary Science Letters, Vol. 143, No. 1-4, 09.1996, p. 207-215.

Research output: Contribution to journalArticle

Dobson, DP, Jones, AP, Rabe, R, Sekine, T, Kurita, K, Taniguchi, T, Kondo, T, Kato, T, Shimomura, O & Urakawa, S 1996, 'In-situ measurement of viscosity and density of carbonate melts at high pressure', Earth and Planetary Science Letters, vol. 143, no. 1-4, pp. 207-215.
Dobson DP, Jones AP, Rabe R, Sekine T, Kurita K, Taniguchi T et al. In-situ measurement of viscosity and density of carbonate melts at high pressure. Earth and Planetary Science Letters. 1996 Sep;143(1-4):207-215.
Dobson, David P. ; Jones, Adrian P. ; Rabe, Richard ; Sekine, Toshimori ; Kurita, Kei ; Taniguchi, Takashi ; Kondo, Tadashi ; Kato, Takumi ; Shimomura, Osamu ; Urakawa, Satoru. / In-situ measurement of viscosity and density of carbonate melts at high pressure. In: Earth and Planetary Science Letters. 1996 ; Vol. 143, No. 1-4. pp. 207-215.
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AU - Taniguchi, Takashi

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