<prompt> Bhala okuqhubekayo kwalesi sigaba - Ngo-1965, wanikezwa i - Penrose Medal ye - Geological Society of America ne - Distinguished Service Medal yoMnyango Wezangaphakathi wase - U.S. Wakhethwa ukuba abe yilungu le-American Academy of Arts and Sciences ngo-1966. Wayebambe iqhaza emhlanganweni we-International Geological Congress ePrague ngo-August, 1968, lapho amaSoviet ehlasela  <response>: ; wathunyelwa eNuremberg. 