Asymmetric Phase Effects and Mantle Convection Patterns

Details Asymmetric Phase Effects and Mantle Convection Patterns Asymmetric Phase Effects and Mantle Convection Patterns

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994sci...264.1904l&link_type=abstract

Science, Volume 264, Issue 5167, pp. 1904-1907

Physics

9

Scientific paper

Recent high-pressure experiments and thermodynamic calculations have shown that the Clapeyron slope of the spinel-perovskite phase transition at a depth of 660 kilometers in the Earth's mantle changes from negative to positive at temperatures above 1700^circ to 2000^circC. In numerical experiments that account for this phase behavior, cold downwelling flows were impeded at the phase boundary, but hot plumes ascended to the upper mantle with ease. The resultant mantle convection was partially layered and strongly time-dependent. Mantle layering was weaker when the mantle was hotter and when the Rayleigh number was larger.

Affiliated with

Also associated with

No associations

Rating

Asymmetric Phase Effects and Mantle Convection Patterns does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Asymmetric Phase Effects and Mantle Convection Patterns, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Asymmetric Phase Effects and Mantle Convection Patterns will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1508421