Journal
AMERICAN MINERALOGIST
Volume 96, Issue 5-6, Pages 864-868Publisher
MINERALOGICAL SOC AMER
DOI: 10.2138/am.2011.3616
Keywords
X-ray absorption method; liquid FeS; density; high pressure; equation of state
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Funding
- Ministry of Education, Culture, Sports, Science, and Technology of the Japanese Government [18104009, 22000002, 13440163, 16340170]
- Global Education and Research Center for Earth and Planetary Dynamics
- Japan Society for the Promotion of Science for Young Scientists
- Grants-in-Aid for Scientific Research [16340170, 23340159, 22000002, 23654181, 20103003, 13440163, 23340129, 09J04192, 21684032] Funding Source: KAKEN
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The density of liquid iron sulfide (FeS) was measured up to 3.8 GPa and 1800 K using an X-ray absorption method. The compression curve of liquid FeS was fitted using the Vinet equation of state. The isothermal bulk modulus and its temperature and pressure derivatives were determined using a nonlinear least-squares fit. The parameter sets determined were: K(0T) = 2.5 +/- 0.3 GPa at T = 1500 K, (dK(0)/dT)(P) = 0.0036 +/- 0.0003 GPa/K, and (dK(0)/dP)(T) = 24 +/- 2. These results suggest that liquid FeS is more compressible than Fe-rich liquid Fe-S.
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