Crust formation and outgassing on early Earth and Mars (C06)

• Subject Area: Mineralogy, Petrology and Geochemistry
• Term: since 2018
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 263649064

We will investigate the coupled evolution of early crust formation and interior outgassing on Earth and Mars under changing mantle redox states. Volcanic outgassing and volatile speciation in rising magma bodies will be treated simultaneously in our coupled, self-consistent model using mantle chemistry and volatile bulk composition as input and data from the geological record as constraints. To trace the evolution of volatiles in interior and surface over time, we will calculate the melt redox state from ultramafic to felsic compositions with respect to ambient temperature, dissolved volatiles, SiO2 and alkali content. We will furthermore extend our speciation analyses (so far in C-O-H system) to other volcanic gas phases such as halogens and sulfur species.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 170: Late Accretion onto Terrestrial Planets
• Applicant Institution: Universität Münster
• Project Heads: Professorin Dr. Lena Noack; Dr. Frank Sohl