Whakaotihia te rerenga e whai ake nei: I te tau 1965, i whakawhiwhia ki a ia te Penrose Medal o te Geological Society of America me te Distinguished Service Medal o te U.S. Department of Interior. I pootihia ia ki te American Academy of Arts and Sciences i te tau 1966. I haere ia i te hui International Geological Congress i Prague i roto i August, 1968, ka
I whakaekehia ia e nga Soviet; i nekehia atu ia ki Nuremberg.