| 2019 | Theme |
| 2018 | The Chemistry of the Ocean Microbiomes! |
| 2017 | Ocean Ridges & Mantle Dynamics! |
| 2016 | Ice-Ocean Interaction! |
| 2015 | Dynamics of Continental and Seafloor Hydrothermal Systems |
| 2014 | The Anthropocene - From Land to the Ocean |
| 2013 | EXPERIMENTS: Simulating the Earth In The Lab |
| 2012 | GRAVITY: The Dominant Force in the Universe |
| 2011 | RIVERS: The Cascading Limb of the Geologic Cycle |
| 2010 | CRUST: Planetary, Continental and Oceanic |
| 2009 | Climate Change: Forcing, Responses and Geo-engineering |
| 2008 | Subduction - From Trench To Arc |
| 2007 | Dynamics of Continental Margins |
| 2006 | ICE! |
| 2005 | The Early Earth |
| 2004 | Plumes vs. Plates |
| 2003 | Catastrophic Events |
| 2002 | Fluid Flow in the Earth |
| 2001 | Plume Ridge Interactions |
| 2000 | The Making and Breaking of Continents |
| 1999 | Fluid Flow, Permeability, and Chemical Kinetics: From the Sediment-Water Interface to the Earth's Deep Interior |
| 1998 | Tectonics and Global Change |
| 1997 | The Geological and Biological Evolution of the Oceanic Lithosphere |
| 1996 | Mantle Plumes and The New Global Geodynamic |
| 1995 | Active Margins - Earthquakes, Tsunamis, and Volcanic Hazards |
| 1994 | Dynamics of Rifting and Breakup of Continents |
| 1993 | Interaction of the Ocean with the Crust and Mantle |