Volcanism and igneous processes in small icy satellites

  title={Volcanism and igneous processes in small icy satellites},
  author={D. J. Stevenson},
The small saturnian satellites exhibit a remarkable diversity of surficial features1–3 including many which appear to be a consequence of internal activity: ‘wispy’ terrain, linear troughs, and terrains displaying large gradations in crater density. I argue here that the most likely cause of endogenic processes in these bodies is the igneous activity associated with a low melting point NH3–H2O magma, a possibility first pointed out by Lewis4. Radiogenic heating probably suffices to provide the… CONTINUE READING