 |
Symposium Schedule >
James Jackson
Abstract: The Cambridge View
A re-assessment of continental strength profiles, based on earthquake depth distributions and gravity anomalies, suggests that the seismogenic layer may be the only significant source of strength in the continental lithosphere, and that the upper mantle beneath the continents is relatively weak. This is in contrast to the laminated, or 'jelly-sandwich' view of continental strength profiles, in which significant strength resides also (perhaps mainly) in the mantle lithosphere, and which I now believe to be incorrect. This new point of view, if it is correct, has many implications for continental tectonics and mechanics.
|
