flotation of diamond in mantle melt at high pressure diamondsnet

Flotation of Diamond in Mantle Melt at High Pressure

1995-7-14  Experiments show that diamond floats in a primitive mantle melt at around 20 gigapascals and 2360°C and in a melt formed by partial melting of the transition zone at about 16 gigapascals and 2270°C. These observations constrain magma densities at high pressure. Diamond precipitated or trapped in a silicate melt at the base of the transition zone or the lower mantle floats and has been ...

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Flotation of diamond in mantle melt at high pressure.

1995-7-14  Flotation of diamond in mantle melt at high pressure. Suzuki A, Ohtani E, Kato T. Experiments show that diamond floats in a primitive mantle melt at around 20 gigapascals and 2360 degrees C and in a melt formed by partial melting of the transition zone

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Flotation of Diamond in Mantle Melt at High Pressure ...

1995-7-1  Experiments show that diamond floats in a primitive mantle melt at around 20 gigapascals and 2360^circC and in a melt formed by partial melting of the transition zone at about 16 gigapascals and 2270^circC. These observations constrain magma densities at high pressure. Diamond precipitated or trapped in a silicate melt at the base of the transition zone or the lower mantle floats and has been ...

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Flotation of olivine and diamond in mantle melt at

The density of the three ultramafic melts, PHN1611, IT8720, and MA at high pressure was determined by the sink-float method using olivine and diamond as density markers. Using these data, we obtain K and K' of the Birch-Murnaghan equation of state for the compression curves of the silicate melts. The density relation between the mantle minerals and the partial melt provides a possible ...

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Flotation of Olivine and Diamond in Mantle Melt at

Flotation of Olivine and Diamond in Mantle Melt at High Pressure: Implications for Fractionation in the Deep Mantle and Ultradeep Origin of Diamond Eiji Ohtani Institute of Mineralogy, Petrology, and Economic Geology, Tohoku University, Sendai, Japan

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Flotation of olivine and diamond in mantle melt at

Flotation of olivine and diamond in mantle melt at high pressure: Implications for fractionation in the deep mantle and ultradeep origin of diamond. In M. H. Manghnani, T. Yagi (Eds.), Properties of Earth and Planetary Materials at High Pressure and Temperature, 1998 (pp. 227-239). (Geophysical Monograph Series; Vol. 101).

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Flotation of olivine and diamond in mantle melt at

Flotation of olivine and diamond in mantle melt at high pressure: Implications for fractionation in the deep mantle and ultradeep origin of diamond. In M. H. Manghnani, T. Yagi (Eds.), Properties of Earth and Planetary Materials at High Pressure and(pp. 227

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Density and thermal expansion of a peridotite melt at

1998-4-15  PHN1611 in Table 2 indicates a composition of a fertile garnet lherzolite sampled from Matsoku kimberlite pipe in Lesotho (Nixon and Boyd, 1973).IT8720 indicates a composition of the partial melt from PHN1611 at 20 GPa and 2200°C (Ito and Takahashi, 1987).Suzuki et al. (1995)measured the density of these melts by flotation of diamond at high pressure.

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Density of basaltic melt at high pressure and stability

2001-11-30  E. Ohtani, A. Suzuki, T. Kato, Flotation of olivine and diamond in mantle melt at high pressure: Implications for fractionation in deep mantle and ultradeep origin of diamond, in: M.H. Manghnani, T. Yagi (Eds.), High Pressure Research: Properties of Earth and Planetary Materials at High Pressure and Temperature, Geophys.

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【前沿报道】Science:岩浆海的氧化还原环境对地球早期 ...

2019-10-29  An experimental determination of the effect of pressure on the Fe 3+ /∑Fe ratio of an anhydrous silicate melt to 3.0 GPa[J]. American Mineralogist, 2006, 91(2-3): 404-412. ( 链接 ) Suzuki A, Ohtani E, Kato T. Flotation of diamond in mantle melt at high

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