DENSITY OF PERIDOTITE MELTS AT HIGH PRESSURE

dc.contributor.author	Suzuki A.
dc.contributor.author	Ohtani E.
dc.date.accessioned	2022-02-13T04:46:08Z
dc.date.available	2022-02-13T04:46:08Z
dc.date.issued	2003
dc.identifier	https://elibrary.ru/item.asp?id=5108130
dc.identifier.citation	Physics and Chemistry of Minerals, 2003, 30, 8, 449-456
dc.identifier.issn	0342-1791
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/35271
dc.description.abstract	Densities of ultramafic melts were determined up to 22 GPa by relative buoyancy experiments. Olivine and diamond were used as buoyancy markers. We confirmed that the density crossover of PHN 1611 melt and its equilibrium olivine (Fo94) occurs at around 13.5 GPa and 2030 °C and that olivine floats from deeper regions in the magma ocean of the primordial terrestrial mantle. The comparison of the compression curves of basic and ultrabasic melts implies that the basic melt is more compressible. This can be explained by the difference in the amount of compressible linkage of SiOn and AlOn polyhedra. The interstitial melt trapped by the density crossover can be the cause of the impedance anomaly of the seismic wave in the deep upper mantle.
dc.subject	DENSITY
dc.subject	MAGMA
dc.subject	MAGMA OCEAN
dc.subject	HIGH PRESSURE
dc.subject	DIFFERENTIATION
dc.subject	MANTLE
dc.subject	SILICATE MELT
dc.title	DENSITY OF PERIDOTITE MELTS AT HIGH PRESSURE
dc.type	Статья

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