Map of tectonic shortening structures in Chryse Planitia and Arabia Terra, Mars

Savana Z. Woodley, Peter Fawdon, Matthew R. Balme and David A. Rothery

Journal of Maps, 2023, vol. 19, issue 1, 2251514

Abstract: We present a 1:4,000,000 scale map of tectonic landforms in Chryse Planitia and Arabia Terra, on either side of Mars’ dichotomy. Our study area is a ∼3 million km2 region, transitional between Mars’ highlands and lowlands including Oxia Planum, the landing site of the ExoMars rover. Using a structural mapping approach, we digitised all kilometre-scale tectonic structures at a scale of 1:50,000 using high-resolution data (∼6 m/pixel). Although this region is represented as sparsely tectonised on global tectonic maps, we find evidence of widespread tectonic shortening structures across the region. The shortening structures have a dominant N-S orientation and occur in all globally identified geological units. The structural map contributes to a broader understanding of the geological history of the region and Mars’ wider tectonic history.

Date: 2023
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DOI: 10.1080/17445647.2023.2251514

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