Asimow, Paul D. and Sun, D and Akins, J. A. and Luo, S. N. and Ahrens, T. J. (2004) Petrology of the lowermost mantle. Geochimica et Cosmochimica Acta, 68 (11). A561. ISSN 0016-7037. https://resolver.caltech.edu/CaltechAUTHORS:20120830-153419650
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Abstract
Seismic observations of the thermal boundary layer above the core-mantle boundary (CMB), including Ultra-Low Velocity Zones and D" discontinuities with velocity jumps of either sign, suggest that the bottom of the mantle may be compositionally distinct and, in places, partially molten[1]. Our new shock-wave data constrain the melting curve and liquid equation of state (EOS) of the key lower mantle component MgSiO_3 perovskite and suggest neutral or negative buoyancy of this melt at CMB pressure.
| Item Type: | Article | ||||||
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| Additional Information: | © 2004 Pergamon-Elsevier Science Ltd. | ||||||
| Issue or Number: | 11 | ||||||
| Record Number: | CaltechAUTHORS:20120830-153419650 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20120830-153419650 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 33728 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Tony Diaz | ||||||
| Deposited On: | 30 Aug 2012 22:40 | ||||||
| Last Modified: | 03 Oct 2019 04:12 |
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