At the ridge axis, \b[$T(z,0)=T_1$ for $0<z<a$] in the intended cooling model. Upwelling and magmatic <heat> supply continually bring hot material into the newly formed plate. The abrupt meeting of this hot interior with the cold upper boundary is an idealized corner discontinuity, resolved diffusively for $t>0$. The printed series fails this <initial condition>, as shown in the parent Solution.

Solution

Past exam of the physics of the Earth as a Planet course of the University of Cambridge / 2013 / Paper 1 / 1 / a / ii / Solution

 Solution (source code)