Mais uma bonita citação da história da geologia
21/06/2011 Deixe um comentário
Such changes in the superficial parts of the globe seemed to me unlikely to happen if the earth were solid to the center. I therefore imagined that the internal parts might be a fluid more dense, and of greater specific gravity than any of the solids we are acquainted with, which therefore might swim in or upon that fluid. Thus the surface of the earth would be a shell, capable of being broken and disordered by the violent movements of the fluid on which it rested.
Benjamin Franklin, em 1782, uns 170 anos antes da revolução da tectónica de placas!