image: In the root-t model, mantle flow is assumed to cool parallel to the plate spreading direction. This image relates to an article that appeared in the April 2, 2010, issue of Science, published by AAAS. The Perspective Paper, by Dr. Maya Tolstoy of The Lamont-Doherty Earth Observatory, Columbia University, in Palisades, NY, was titled, "What Lies Beneath." view more
Credit: P. Huey/<i>Science</i>