Robuta

https://www.geosociety.org/GSA/About/awards/GSA/Awards/2025/penrose.aspx Penrose Medal - 2025 penrose medal 2025 https://www.geosociety.org/awards/15speeches/penrose.htm Geological Society of America - 2015 Penrose Medal - James W. Head geological society of america penrose medal james w 2015 head