Primary Convener:
Hyunjoo Lee, Columbia University

Convener:
Ekanshu Mallick, Tulane University of Louisiana
Patrick Beaudry, Johns Hopkins University
Hongluo Zhang, China University of Geosciences
Leila Honarbakhsh, University of Louisiana at Lafayette
Michael Hudak, Williams College
Proteek Chowdhury, Rice University

Chair:
Ekanshu Mallick, Tulane University of Louisiana
Hongluo Zhang, China University of Geosciences
Leila Honarbakhsh, University of Louisiana at Lafayette
Proteek Chowdhury, Rice University

The behavior of volatile elements (e.g., H, C, N, S, O, halogens, noble gases) plays a central role in shaping the chemical and physical evolution of planetary interiors and surface environments. Magmatic and redox processes—spanning core formation, magma oceans, mantle melting, subduction recycling, and volcanic outgassing—govern volatile storage, transport, and release, linking planetary interiors to atmospheres and habitability. Their coupled evolution regulates volatile fluxes to the surface, shaping atmospheres, volcanic activity, and the availability of life-enabling elements in Earth’s near-surface. This session invites interdisciplinary contributions that integrate geochemical, isotopic, experimental, analytical, and modeling approaches (including thermodynamics, fluid/molecular dynamics, and AI/ML tools) to explore volatile cycling from the deep mantle to planetary surfaces. We particularly encourage cross-disciplinary perspectives, studies bridging mantle redox with magmatic and volcanic processes, and participation from early-career researchers. Together, we aim to advance understanding of how volatiles and redox evolution shape Earth and other terrestrial planets.

Index Terms
1038 Mantle processes
1060 Planetary geochemistry
5215 Origin of life
8410 Geochemical modeling

Cross-Listed:
P - Planetary Sciences
DI - Study of the Earth´s Deep Interior

Neighborhoods:
2. Earth Interior