Other
Scientific paper
Jul 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995e%26psl.133..507d&link_type=abstract
Earth and Planetary Science Letters, vol. 133, Issue 3-4, pp.507-516
Other
70
Scientific paper
Reliable evaluations of whether a phase transformation boundary with a negative Clapeyron slope will cause mantle convection to be stratified will require models to include good simulations of plates and plumes. Here numerical models of mantle convection are presented that incorporate reasonable simulations of subducting lithospheric plates and good simulations of rising low-viscosity mantle plumes, as well as being carefully scaled to other first-order parameters of the mantle. The models show that subducting plates and plume heads penetrate a phase transformation barrier more readily than does flow in constant viscosity convection models in which plates and plumes are poorly simulated. Plates can penetrate a larger magnitude of the Clapeyron slope than plume heads, with plume tails the least able to penetrate. These results, together with recent laboratory results on Clapeyron slopes and observational evidence that even weak plume tails reach the surface, suggest that subducting plates usually are not strongly resisted by this mechanism, and that putative episodes of mantle overturn would be much less dramatic than in some recent constant-viscosity models.
No associations
LandOfFree
Penetration of plates and plumes through the mantle transition zone 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 Penetration of plates and plumes through the mantle transition zone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Penetration of plates and plumes through the mantle transition zone will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1170974