
Technological Challenge: A great number of numerical codes have been emerging that appear to be fit to model geodynamic problems. The use and purpose of these codes is often confusing. We want to introduce and compare different techniques in a "Hands on" fashion to elucidate their potential, their limitations and their need for future development to solve the solidfluid coupling problem. This technological comparison should be useful beyond the problem discussed. We will discuss:
 Standard Lagrangian Finite Element Approaches
 Arbitrary Lagrange Eulerian Solution
 Finite Difference Schemes
 Variety of CFD Code
 BYO (bring your own code for the discussion)

Slab subduction and mantle phase boundaries (Christiensen)
Topography and folding (Podladchikov) (5Mb)
Folding simulations (Schmalholz) (0.5Mb)
Evolution and structure of mantle plumes (by H. Schmeling)
Delaminating mantle lithosphere (by B. Schott) (4Mb)

