Assertion: hailstone's surface | /r/AtLocation | false color
Facets:
value: beneath a layer
type: LOCATION
value: than the higher plateaus
type: LOCATION
Source sentences:
text: Compositional data also show that the surface of Piri Planitia is more enriched in water ice (shown in false color as blue) than the higher plateaus, which may indicate that Piri Planitia's surface is made of water ice bedrock, just beneath a layer of retreating methane ice.