Isothermal compression of molten Fe 2 SiO 4 | Zendy

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Isothermal compression of molten Fe 2 SiO 4

Author(s) -

Agee Carl B.

Publication year - 1992

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/92gl01064

Subject(s) - materials science , isothermal process , buoyancy , bulk modulus , mineralogy , compression (physics) , thermodynamics , analytical chemistry (journal) , composite material , geology , chemistry , physics , chromatography

Isothermal compressions of molten Fe 2 SiO 4 have been measured between 1.0 and 5.5 GPa in a piston‐cylinder apparatus by observing sinking and floating of ruby and garnet buoyancy markers of known composition and density. For liquid Fe 2 SiO 4 , (dρ/dP) 1773K is 0.080 g cm −3 GPa −1 in the pressure range investigated. The static compression sink/float density measurements, when combined with the 10 5 Pa reference density from Shiraishi et al. [1978], yield a third order Birch‐Murnaghan bulk modulus for molten Fe 2 SiO 4 of K 1773K =24.4 GPa with a pressure derivative dK/dP=10.1.

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