(Login DEPREM) Forum Owner Posted Mar 27, 2005 9:52 AM
Please find the Q & A for Buleid's presentation.
Q.1 What do you mean by seismically fast mantle?
Cold Dense mantle, as it is dense therefore velocities will be fast in that.
Q.2 In the megaplume area, would you expect high velocities or low velocities?
Low velocities, as due to temperature, the material will become less denser to raise upward and the velocities will be decreased in that zone.
Q.3 Why don't the thermal and mechanical models offer a good explanation for tilting of Arabia?
As these models are largely concerned with flank uplift within a few hundred kilometers of the rift basin, therefore, these models don't provide a good explanation for Arabian tilt.
Q.4 What does thermal model say about the rift-flank uplift?
According to thermal model, uplift can result from depth-dependent stretching or from the heating of flanks by small-scale convection.