Radiolysis of macromolecular organic material in Mars-relevant mineral matrices

A.C. Fox, J.L. Eigenbrode & C. Herrera
The fate of organic material on Mars after deposition is crucial to interpreting the source of these molecules. Previous work has addressed how various organic compounds at millimeter depths in sediments respond to ultraviolet (UV) radiation. In contrast, this study addressed how high-energy particle radiation (200-MeV protons, simulating the effect of galactic cosmic rays at depths of < 4-5 cm) influences organic macromolecules in sediments. Specifically, we report the generation of organic-acid radiolysis products after...
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