Calculate the net flux for the section of mantle asthenosphere in a case where the plate velocity is 8 cm/yr moving away from a MOR (on the left) toward a subduction zone (on the right), the asthenosphere thickness is 580 km, the mantle viscosity is 5e19 Pas, and the pressure gradient is +2.26 Pa/m. Moving from the MOR to the subduction is in the positive x direction. A. Draw a picture of this scenario.
B. By hand, calculate the velocity in the asthenosphere at a position equivalent to y=400 km (400 km above the base of the asthenosphere). Give the result in both m/s and cm/yr. Include an analysis of the units.
C. Make a matlab script to calculate the velocity profile from the base of the asthenosphere to the top of the asthenosphere. Include the plot and the script.
D. What is the net flux in this case? Show your work.