Abstract
The principle, that the rate of internal viscous dissipation is at a minimum, is incorrect when temperature and velocity fields are linked through temperature-dependent viscosity or density. This makes it inappropriate for the study of spreading ridge - transform fault systems or other plate-tectonic problems with large viscosity stratification resulting from large temperature gradients. Corrections to the principle are noted for cases without heat advection but with boundary tractions or non-linear materials.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 214-217 |
| Number of pages | 4 |
| Journal | Earth and Planetary Science Letters |
| Volume | 45 |
| Issue number | 1 |
| DOIs | |
| State | Published - Oct 1979 |
Bibliographical note
Funding Information:We thank F Busse, R Chin, R Geller, and S Stem for sttmulatlng conversations This research was supported by the Earth Sciences Section, National Science Foundation, under grants EAR-77-15198 and EAR-78-22753