Storage and Migration of Volatiles in the Interior of Earth and Other Planetary Bodies

Dear Colleagues,

The volatile cycle (C–O–H–N–S) is of fundamental importance to Earth processes over geologic time, such as accretion, plate tectonics, subduction, magmatism, volcanism, and ultimately climate variability. Nevertheless, estimations of volatile fluxes between the Earth’s interior (core and mantle) and the exosphere remain highly controversial. Like Earth, other planets show evidence of volatile-driven processes that have helped to establish diverse stratified inner structures, and a range of atmospheric compositions likely depending on the composition of the accreting planetary bodies. How the volatile budget of planets and the inner mineralogy would result from the chemistry of the building blocks, accretion processes, differentiation, and/or geological evolution is still an open question.

This Special Issue aims to promote the latest multidisciplinary research in carbon–water–nitrogen–hydrogen–sulfur science focusing on several topics. These include (1) solubility, storage, and speciation of volatile species (C-O-H-N-S) within planetary interiors through experiments on diffusion and solubility both in minerals and melts; (2) origin and migration of C–O–H–N–S-rich fluids and melts and their impact on redox processes, diamond formation, mantle metasomatism, and associated (alkaline) magmatism; (3) isotope compositions of reservoirs, fractionations, volatile tracking; (4) effect of volatiles on physical properties of mantle minerals; and (5) global volatile release to the exosphere through magmatic transfer.

We invite contributions from volcanology, natural and experimental rock/fluid geochemistry and petrology, mineral physics, and theoretical and computational studies.

Dr. Vincenzo Stagno
Dr. Steeve Gréaux
Dr. Jabrane Labidi
Guest Editors

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• volatiles
• accretion
• melting
• isotopes
• diamond
• atmosphere
• high pressure
• ferric iron
• phase equilibria