https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/mud-cracks
mud-cracks See desiccation cracks. Source for information on mud-cracks: A Dictionary of Ecology dictionary.
mud cracksencyclopediacom
https://www.astronomy.com/space-exploration/curiosity-examines-possible-mud-cracks-on-mars/
Evidence of mud means previous evidence of water on the Red Planet
mud crackscuriosityexaminespossiblemars