See section 4.1 [page 909] of this report: https://www.researchgate.net/profile/David_Beaty/publication/268444482_A_new_analysis_of_Mars_Special_Regions_findin

See section 4.1 [page 909] of this report: https://www.researchgate.net/profile/David_Beaty/publication/268444482_A_new_analysis_of_Mars_Special_Regions_findings_of_the_second_MEPAG_Special_Regions_Science_Analysis_Group_SR-SAG2/links/547c9b0b0cf27ed9786229dd.pdf https://www.researchgate.net/profile/David_Beaty/publication... The main driver is that the flows seem to be associated with seasonally higher temperatures, and therefore the flows ("RSL") may be caused by a melting brine. RSLs have been controversial and they have gotten a lot of attention from planetary scientists.