Three‐dimensional mantle dynamics with an endothermic phase transition

S. Honda, S. Balachandar, David A Yuen, D. Reuteler

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Three‐dimensional convection for the spinel to perovskite phase change has been simulated numerically. Results for Rayleigh (Ra) numbers of 0(106) show intermittent layering with a strong robust plume rising through the phase boundary. Many descending instabilities are deflected but merging cold sheets come together at a junction. A pool of cold material accumulates underneath in the phase‐transition zone. A strong gravitational instability results, which precipitates a rapid and massive discharge of upper‐mantle material.

Original languageEnglish (US)
Pages (from-to)221-224
Number of pages4
JournalGeophysical Research Letters
Volume20
Issue number3
DOIs
StatePublished - Feb 5 1993

Fingerprint

Dive into the research topics of 'Three‐dimensional mantle dynamics with an endothermic phase transition'. Together they form a unique fingerprint.

Cite this