Evidence for widespread glaciation in Arcadia Planitia, Mars

Viscous flow features, including lobate debris aprons and lineated valley fill, are common ice-related features found across the mid-latitudes of Mars. These commonly along dichotomy boundary around massifs where snow ice can accumulate to topographic lows during periods higher obliquity. We have identified mapped glacial-related reminiscent fill in lower Arcadia Planitia based on morphology, albedo, thermal infrared reflectance, inertia, subsurface radar reflections. Three sinuous show surface morphologies supporting spectral properties indicative massive buried ice, distinct boundaries, arcuate linear banding, deep reflections, dielectric constants similar water-ice, expanded secondary craters, proximity aprons. interpret be debris-covered glaciers formed obliquity Mars' recent past. appear channelized that once flowed but currently reside a flat-lying region. Although their origin is unclear, we consider an interpretation analogous stagnated terrestrial streams due lack obvious dependence. The abundant evidence widespread near-surface mid-latitude region Mars makes potentially favorable site for future missions high potential situ resource utilization.