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- W2019823218 abstract "Abstract Recent studies have indicated that a significant amount of iron in MgSiO 3 perovskite (Pv) is Fe 3+ (Fe 3+ /ΣFe = 10–60%) due to crystal chemistry effects at high pressure ( P ) and that Fe 3+ is more likely than Fe 2+ to undergo a high-spin (HS) to low-spin (LS) transition in Pv in the mantle. We have measured synchrotron Mossbauer spectroscopy (SMS), X-ray emission spectroscopy (XES), and X-ray diffraction (XRD) of Pv with all iron in Fe 3+ in the laser-heated diamond-anvil cell to over 100 GPa. Fe 3+ increases the anisotropy of the Pv unit cell, whereas Fe 2+ decreases it. In Pv synthesized above 50 GPa, Fe 3+ enters into both the dodecahedral (A) and octahedral (B) sites approximately equally, suggesting charge coupled substitution. Combining SMS and XES, we found that the LS population in the B site gradually increases with pressure up to 50–60 GPa where all Fe 3+ in the B site becomes LS, while Fe 3+ in the A site remains HS to at least 136 GPa. Fe 3+ makes Pv more compressible than Mg-endmember below 50 GPa because of the gradual spin transition in the B site together with lattice compression. The completion of the spin transition at 50–60 GPa increases bulk modulus with no associated change in density. This elasticity change can be a useful seismic probe for investigating compositional heterogeneities associated with Fe 3+ ." @default.
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- W2019823218 date "2010-01-01" @default.
- W2019823218 modified "2023-10-10" @default.
- W2019823218 title "Spin state of ferric iron in MgSiO3 perovskite and its effect on elastic properties" @default.
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- W2019823218 cites W1538706632 @default.
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- W2019823218 cites W1597888302 @default.
- W2019823218 cites W1625368129 @default.
- W2019823218 cites W1666831820 @default.
- W2019823218 cites W1670046718 @default.
- W2019823218 cites W1965565308 @default.
- W2019823218 cites W1969830532 @default.
- W2019823218 cites W1970101802 @default.
- W2019823218 cites W1973804869 @default.
- W2019823218 cites W1980515401 @default.
- W2019823218 cites W1982618410 @default.
- W2019823218 cites W1982970766 @default.
- W2019823218 cites W1984800782 @default.
- W2019823218 cites W1989712816 @default.
- W2019823218 cites W1996781327 @default.
- W2019823218 cites W1997126459 @default.
- W2019823218 cites W1997704409 @default.
- W2019823218 cites W1998409266 @default.
- W2019823218 cites W1998718818 @default.
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- W2019823218 cites W2007297634 @default.
- W2019823218 cites W2009589779 @default.
- W2019823218 cites W2012356325 @default.
- W2019823218 cites W2019921753 @default.
- W2019823218 cites W2023391438 @default.
- W2019823218 cites W2024713960 @default.
- W2019823218 cites W2030551383 @default.
- W2019823218 cites W2033669547 @default.
- W2019823218 cites W2035183680 @default.
- W2019823218 cites W2038640942 @default.
- W2019823218 cites W2039235095 @default.
- W2019823218 cites W2045432532 @default.
- W2019823218 cites W2050897884 @default.
- W2019823218 cites W2053369274 @default.
- W2019823218 cites W2057367003 @default.
- W2019823218 cites W2059617812 @default.
- W2019823218 cites W2062221814 @default.
- W2019823218 cites W2072508661 @default.
- W2019823218 cites W2076775144 @default.
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- W2019823218 cites W2087287429 @default.
- W2019823218 cites W2088959060 @default.
- W2019823218 cites W2091930269 @default.
- W2019823218 cites W2117672659 @default.
- W2019823218 cites W2122321283 @default.
- W2019823218 cites W2122961179 @default.
- W2019823218 cites W2128014252 @default.
- W2019823218 cites W2132814927 @default.
- W2019823218 cites W2134540631 @default.
- W2019823218 cites W2136581539 @default.
- W2019823218 cites W2146814700 @default.
- W2019823218 cites W2159665554 @default.
- W2019823218 cites W2160352379 @default.
- W2019823218 cites W2166394902 @default.
- W2019823218 cites W2167471676 @default.
- W2019823218 cites W2167590372 @default.
- W2019823218 cites W2169195033 @default.
- W2019823218 cites W2289855070 @default.
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- W2019823218 doi "https://doi.org/10.1016/j.epsl.2009.10.029" @default.
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