2014
Ultralow viscosity of carbonate melts at high pressures
Nature Communications
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- Volume
- 5
- Number
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1038/ncomms6091
- Publisher
- NATURE PUBLISHING GROUP
Knowledge of the occurrence and mobility of carbonate-rich melts in the Earth's mantle is important for understanding the deep carbon cycle and related geochemical and geophysical processes. However, our understanding of the mobility of carbonate-rich melts remains poor. Here we report viscosities of carbonate melts up to 6.2 GPa using a newly developed technique of ultrafast synchrotron X-ray imaging. These carbonate melts display ultralow viscosities, much lower than previously thought, in the range of 0.006-0.010 Pa s, which are similar to 2 to 3 orders of magnitude lower than those of basaltic melts in the upper mantle. As a result, the mobility of carbonate melts (defined as the ratio of melt-solid density contrast to melt viscosity) is similar to 2 to 3 orders of magnitude higher than that of basaltic melts. Such high mobility has significant influence on several magmatic processes, such as fast melt migration and effective melt extraction beneath mid-ocean ridges.
- Link information
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- DOI
- https://doi.org/10.1038/ncomms6091
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000343978000008&DestApp=WOS_CPL
- Scopus Url
- http://www.scopus.com/inward/record.url?eid=2-s2.0-84919910219&partnerID=MN8TOARS Open access
- URL
- http://orcid.org/0000-0001-5916-7524
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84919910219&origin=inward
- ID information
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- DOI : 10.1038/ncomms6091
- ISSN : 2041-1723
- eISSN : 2041-1723
- ORCID - Put Code : 34976327
- SCOPUS ID : 84919910219
- Web of Science ID : WOS:000343978000008