Abstract
A double-stage multianvil system was developed to conduct in situ X ray diffraction study at high pressures. The system has been used in conjunction with intense synchrotron radiation to study the phase transitions of MgSiO3 and the thermal expansion of MgSiO3 perovskite. At pressures between 20 and 30 GPa, a series of phase transitions from spinel+stishovite through ilmenite to perovskite were observed. The results provide the phase stability relation of MgSiO3 and the thermal equation of state of MgSiO3 perovskite at pressures corresponding to the boundary between the upper and lower mantle. -from Authors
| Original language | English |
|---|---|
| Pages (from-to) | 20,475-20,481 |
| Journal | Journal of Geophysical Research |
| Volume | 100 |
| Issue number | B10 |
| Publication status | Published - Jan 1 1995 |
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All Science Journal Classification (ASJC) codes
- Geophysics
- Forestry
- Oceanography
- Aquatic Science
- Ecology
- Water Science and Technology
- Soil Science
- Geochemistry and Petrology
- Earth-Surface Processes
- Atmospheric Science
- Earth and Planetary Sciences (miscellaneous)
- Space and Planetary Science
- Palaeontology
Cite this
In situ X ray observation of high-pressure phase transitions of MgSiO3 and thermal expansion of MgSiO3 perovskite at 25 GPa by double-stage multianvil system. / Kato, Takumi; Ohtani, Eiji; Morishima, Hideaki; Yamazaki, Daisuke; Suzuki, Akio; Suto, Minoru; Kubo, Tomoaki; Kikegawa, Takumi; Shimomura, Osamu.
In: Journal of Geophysical Research, Vol. 100, No. B10, 01.01.1995, p. 20,475-20,481.Research output: Contribution to journal › Article
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TY - JOUR
T1 - In situ X ray observation of high-pressure phase transitions of MgSiO3 and thermal expansion of MgSiO3 perovskite at 25 GPa by double-stage multianvil system
AU - Kato, Takumi
AU - Ohtani, Eiji
AU - Morishima, Hideaki
AU - Yamazaki, Daisuke
AU - Suzuki, Akio
AU - Suto, Minoru
AU - Kubo, Tomoaki
AU - Kikegawa, Takumi
AU - Shimomura, Osamu
PY - 1995/1/1
Y1 - 1995/1/1
N2 - A double-stage multianvil system was developed to conduct in situ X ray diffraction study at high pressures. The system has been used in conjunction with intense synchrotron radiation to study the phase transitions of MgSiO3 and the thermal expansion of MgSiO3 perovskite. At pressures between 20 and 30 GPa, a series of phase transitions from spinel+stishovite through ilmenite to perovskite were observed. The results provide the phase stability relation of MgSiO3 and the thermal equation of state of MgSiO3 perovskite at pressures corresponding to the boundary between the upper and lower mantle. -from Authors
AB - A double-stage multianvil system was developed to conduct in situ X ray diffraction study at high pressures. The system has been used in conjunction with intense synchrotron radiation to study the phase transitions of MgSiO3 and the thermal expansion of MgSiO3 perovskite. At pressures between 20 and 30 GPa, a series of phase transitions from spinel+stishovite through ilmenite to perovskite were observed. The results provide the phase stability relation of MgSiO3 and the thermal equation of state of MgSiO3 perovskite at pressures corresponding to the boundary between the upper and lower mantle. -from Authors
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UR - http://www.scopus.com/inward/citedby.url?scp=0029542890&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0029542890
VL - 100
SP - 20,475-20,481
JO - Journal of Geophysical Research
JF - Journal of Geophysical Research
SN - 0148-0227
IS - B10
ER -