CO2-SO2 clathrate hydrate formation on early Mars E. Chassefière, E. Dartois, J.-M Herri, F. Tian, F. Schmidt, O. Mousis and A. Lakhlifi BIO Web of Conferences, 2 (2014) 01004 Published online: 18 February 2014 DOI: 10.1051/bioconf/20140201004