- Theme 1:The Early Solar System: Chemistry and Chronology
- Theme 2:Planetary Geochemistry
- Theme 3:Early Earth: From Mantle to Microbes
- Theme 4:Continental Crustal Evolution
- Theme 5:Mantle Dynamics
- Theme 6:Mantle Geochemistry
- Theme 7:Experimental Petrology
- Theme 8:Fluids in the Crust and Mantle
- Theme 9:Subduction Processes
- Theme 10:Magmatic Processes
- Theme 11:Thermochronology
- Theme 12:Resource Geochemistry
- Theme 13:Terrigenous Sediments and Sedimentary Components
- Theme 14:Fluid-solid interaction from the atomic to the global scale
- Theme 15:Marine Geochemistry
- Theme 16:Weathering and Landscape Evolution
- Theme 17:Paleoclimate
- Theme 18:Environmental Geochemistry
- Theme 19:Biogeochemistry
- Theme 20:Techniques
- Theme 21:General Sessions