Thermodynamic properties of at super-Earth mantle conditions
Abstract
Recent discoveries of terrestrial exoplanets distant from our solar system motivate laboratory experiments that provide insight into their formation and thermal evolution. Using laser-driven shock wave experiments, we constrain high-temperature and high-pressure adiabats and the equation of state of MgSiO3 ,a dominant mantle constituent of terrestrial exoplanets. Critical to the development of a habitable exoplanet is the early thermal history, specifically the formation and freezing of the magma ocean and its role in enabling convection in the mantle and core. We measure the adiabatic sound speed and constrain the melt transition along the Hugoniot and find that the adiabats and melt boundary of silicate magmas are shallower than predicted. In conclusion, this suggests that small changes in the temperature of a super-Earth mantle would result in rapid melting and solidification of nearly the entire mantle.
- Authors:
-
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Univ. of California, Davis, CA (United States)
- Univ. of Rochester, NY (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1548350
- Alternate Identifier(s):
- OSTI ID: 1456271
- Report Number(s):
- LLNL-JRNL-782899
Journal ID: ISSN 2469-9950; PRBMDO; 973808
- Grant/Contract Number:
- AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 97; Journal Issue: 21; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Fratanduono, D. E., Millot, M., Kraus, R. G., Spaulding, D. K., Collins, G. W., Celliers, P. M., and Eggert, J. H. Thermodynamic properties of MgSiO3 at super-Earth mantle conditions. United States: N. p., 2018.
Web. doi:10.1103/PhysRevB.97.214105.
Fratanduono, D. E., Millot, M., Kraus, R. G., Spaulding, D. K., Collins, G. W., Celliers, P. M., & Eggert, J. H. Thermodynamic properties of MgSiO3 at super-Earth mantle conditions. United States. https://doi.org/10.1103/PhysRevB.97.214105
Fratanduono, D. E., Millot, M., Kraus, R. G., Spaulding, D. K., Collins, G. W., Celliers, P. M., and Eggert, J. H. Thu .
"Thermodynamic properties of MgSiO3 at super-Earth mantle conditions". United States. https://doi.org/10.1103/PhysRevB.97.214105. https://www.osti.gov/servlets/purl/1548350.
@article{osti_1548350,
title = {Thermodynamic properties of MgSiO3 at super-Earth mantle conditions},
author = {Fratanduono, D. E. and Millot, M. and Kraus, R. G. and Spaulding, D. K. and Collins, G. W. and Celliers, P. M. and Eggert, J. H.},
abstractNote = {Recent discoveries of terrestrial exoplanets distant from our solar system motivate laboratory experiments that provide insight into their formation and thermal evolution. Using laser-driven shock wave experiments, we constrain high-temperature and high-pressure adiabats and the equation of state of MgSiO3 ,a dominant mantle constituent of terrestrial exoplanets. Critical to the development of a habitable exoplanet is the early thermal history, specifically the formation and freezing of the magma ocean and its role in enabling convection in the mantle and core. We measure the adiabatic sound speed and constrain the melt transition along the Hugoniot and find that the adiabats and melt boundary of silicate magmas are shallower than predicted. In conclusion, this suggests that small changes in the temperature of a super-Earth mantle would result in rapid melting and solidification of nearly the entire mantle.},
doi = {10.1103/PhysRevB.97.214105},
journal = {Physical Review B},
number = 21,
volume = 97,
place = {United States},
year = {Thu Jun 21 00:00:00 EDT 2018},
month = {Thu Jun 21 00:00:00 EDT 2018}
}
Web of Science
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Works referencing / citing this record:
Measurement of the sound speed in dense fluid deuterium along the cryogenic liquid Hugoniot
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