| Author(s) | Session |
| Uahengo, Collen-Issia | 08.d) Supercontinents through space and time |
| Ufer, Kristian | Poster social |
| Uhl, Dieter | 02.c) Sedimentary basins across time: exploring sedimentary strata and their depositional environments 15.a) Young Scientist Session 08.a) Magmatism, volcanism, and related processes Session Chair |
| Ulfers, Arne | Poster social Presenter Poster social Presenter |
| Ulrich, Marc | 03.a) Mineral Exploration, Economic and Ore Deposit Geology |
| Ulrich, Thomas | Poster social |
| Urlaub, Morelia | Poster social |
| Ustaszewski, Kamil | 08.e) Tectonic Systems - TSK Open Session Poster social |