Stability of carbonated magmas at the base of the Earth's upper mantle

We measured the density of carbonated basaltic melt containing 5.0 wt.% CO2 at 2573 K and in the pressure range from 16.0 to 20.0 GPa by using the sink/float method with single crystal diamond as a density marker. We observed sinking of diamond at 19.0 GPa and flotation of diamond at 20.0 GPa and 25...

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Veröffentlicht in:	Geophysical research letters 2007-11, Vol.34 (22), p.n/a
Hauptverfasser:	Ghosh, Sujoy, Ohtani, Eiji, Litasov, Konstantin, Suzuki, Akio, Sakamaki, Tatsuya
Format:	Artikel
Sprache:	eng
Schlagworte:	410 km discontinuity density Earth sciences Earth, ocean, space Exact sciences and technology magma
Online-Zugang:	Volltext
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