Stixrude, L;
Bukowinski, MST;
(1992)
Stability of (Mg,Fe)SiO3 perovskite and the structure of the lowermost mantle.
Geophysical Research Letters
, 19
(10)
1057 - 1060.
10.1029/92GL01066.
![[thumbnail of 92GL01066.pdf]](https://discovery.ucl.ac.uk/style/images/fileicons/application_pdf.png) Preview |
PDF
92GL01066.pdf Available under License : See the attached licence file. Download (403kB) |
Abstract
Thermodynamic analysis shows that (Mg,Fe)SiO3 perovskite is stable throughout the likely pressure, temperature and compositional regime of the Earth's mantle. The breakdown of perovskite to its constituent oxides appears unlikely, even under the extreme conditions of the core-mantle boundary. This reaction had been proposed to reconcile estimates of silicate melting with seismic observation and proposed geotherms.
| Type: | Article |
|---|---|
| Title: | Stability of (Mg,Fe)SiO3 perovskite and the structure of the lowermost mantle |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1029/92GL01066 |
| Publisher version: | http://dx.doi.org/10.1029/92GL01066 |
| Language: | English |
| Additional information: | Copyright 1992 by the American Geophysical Union |
| Keywords: | Phase-transitions, Core, Iron, Gigapascals, Boundary, State, Model, MgO, CaO |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/82951 |
Archive Staff Only
 |
View Item |
