@sharponlooker
Jezero daily temperature differences appear to be less than 100°C. Are such differences enough to fracture seemingly hard solid rocks in a dry environment? Probably not, but we still don't know the composition of those rocks and their physical properties. Maybe there are other parameters that need to be considered for their fracturing, besides generic 'thermal stress', which means that a story/theory needs to be developed to explain what happened and what we see today.