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Ancient alluvial plains at Oxia Planum, Mars
Fawdon, Peter; Thomas, Nicolas; Grindrod, Peter M. +4 more
The geologic origin of the ancient, phyllosilicate-bearing bedrock at Oxia Planum, Mars, the ExoMars rover landing site, is unknown. The phyllosilicates record ancient aqueous processes, but the processes that formed the host bedrock remain elusive. Here, we use high-resolution orbital and topographic datasets from the HiRISE, CaSSIS and CTX instr…
The evolution of Martian fissure eruptions and their plumbing systems
Pieterek, Bartosz; Jones, Thomas J.
On Earth, the investigation of fissure eruptions and their deposits provide fundamental insights into the evolution of the subsurface volcanic plumbing system. On Mars, we have limited evidence of the spatiotemporal evolution of fissure-fed volcanic systems, and thus the processes operating within their subsurface-feeding dykes remain poorly under…