The science rationale for this observation was to look at stratigraphic relationships in amongst chaos blocks and adjacent geological units. HiRISE resolution can also help us to examine fine-scale layers and a digital terrain model can be used to constrain those stratigraphic relationships. The scene is located in Hydaspis Chaos, where many large, ancient river valleys are found, along with collapsed features that form what we call “chaotic terrain.”

ID: ESP_074852_1825
date: 15 July 2022
altitude: 273 km

https://uahirise.org/hipod/ESP_074852_1825
NASA/JPL-Caltech/UArizona
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