One thing that AIG doesn’t mention in that piece is Baumgardners model isn’t used by NASA with the time scales he uses when writing for creationist tabloids. But AIG conveniently overlooks that little tidbit. Some unsuspecting dupe may be led to believe that NASA believes as he does. Also, if Baumgardner is a young earth creationist then why does he publish in science journals using 100s of million year time frames with his model?
Abstract:
TIME SCALES AND HETEROGENEOUS STRUCTURE IN GEODYNAMIC EARTH MODELS
Bunge, H.-P., Richards, M.A., Lithgow-Bertelloni, C., Baumgardner, J.R., Grand, S.P., and Romanowicz, B., 1998, Science, 280, 91-95
Computer models of mantle convection constrained by the history of Cenozoic and Mesozoic plate motions explain some deep mantle heterogeneity structures imaged by seismic tomography, especially those related to subduction. They also reveal a 150 million year time scale for generating thermal heterogeneity in the mantle, comparable to the record of plate motion reconstructions, so that the problem of unknown initial conditions can be overcome. The pattern of lowermost mantle structure at the core-mantle boundary is controlled by subduction history, although seismic tomography reveals intense large-scale hot (low-velocity) upwelling features not explicitly predicted by the models.
So it seems his model can be used for anything from a few days or weeks up to hundreds of millions of years.