Modeling Lunar Pyroclasts to Probe the Volatile Content of the Lunar Interior

Abstract

Several models of lunar formation that have recently gained momentum in the planetary science community involve, to an extent, the giant impact theory (e.g., the terrestrial synestia model of Lock et al. (2018)). In this giant impact theory, the Moon is thought to have been formed from the coalescence of debris from a collision between an impactor and a proto-Earth (Canup, 2004), leading to the formation of a lunar magmatic ocean and the large-scale degassing of the Moon (Lucey et al., 2006). The depletion of hydrogen (e.g., in the form of OH/H 2 O, hereafter referred to simply as "water" or H 2 O) in volcanic samples returned from Luna and Apollo missions seemed to support this, but a growing body of research now suggests that the lunar mantle, or at least some parts of the lunar mantle, may not be as severely depleted in water as previously thought (

Repacking in Compacting Mushes at Intermediate Melt Fractions: Constraints from Numerical Modeling and Phase Separation Experiments on Granular Media

“…The Markov chain Monte Carlo is an inversion technique ideally suited for non-linear problems with fast forward solvers (here the finite volume model described in section 3). Its implementation includes computing hundreds of thousands of forward model simulations given a suite of parameters of interest (Allan et al , 2013, Florez et al , 2021. For the calculations in this study, the parameters of interest include φ m and ξ ref .…”

Repacking in Compacting Mushes at Intermediate Melt Fractions: Constraints From Numerical Modeling and Phase Separation Experiments on Granular Media

“…The MCMC is an inversion technique ideally suited for non‐linear problems with fast forward solvers (here the finite volume model described in Section 3). Its implementation includes computing hundreds of thousands of forward model simulations given a suite of parameters of interest (Allan et al., 2013; Florez et al., 2021). For the calculations in this study, the parameters of interest include ϕ m and ξ ref .…”