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Zoology and wildlife conservation

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Temperatures in the Earth's core from melting-point measurements of iron at high static pressures

Article Abstract:

Melting-point measurements of iron at high static pressures were conducted to estimate temperatures in the core of the earth. Extrapolation of the results from 2 Mbar pressure to 3 Mbar yielded a temperature of 4,850 +/- 200 degrees Kelvin at the boundary of the inner core. On the other hand, the outer core was found to have a temperature of 850 degrees Kelvin. From this value, core-mantle boundary measurements were also estimated.

Author: Boehler, R.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1993
Earth temperature, Earth's temperature

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Carbon solubility in olivine and the mode of carbon storage in the earth's mantle

Article Abstract:

The measurements of carbon solubility in olivine, the major constituent of the upper mantle, at pressures up to 3.5 Gpa are reported. The measurements imply that most carbon must be present as a separate phase in the deeper parts of the upper mantle, probably as carbonate phase.

Author: Keppler, Hans, Wiedenbeck, Michael, Shcheka, Svyatoslav S.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
United States, Composition, Carbon

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High-pressure polymorphs of olivine and the 660-km seismic discontinuity

Article Abstract:

Research examining diamond-anvil laser-heated cell seismic measurements to verify the stability of the Mg2SiO4 in the seismic activity of the Earth's mantle is presented. Particular attention is given to thermal pressure accuracy.

Author: Chudinovskikh, L., Boehler, R.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2001
Measurement, Geophysical research, Seismology, Magnesium compounds

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Subjects list: Research, Earth, Mantle (Geology)
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