Guide to Magellan Image
Interpretation
Figure 9-20. Sapas Mons is located on
a topographic rise in Atla Regio. The summit area consists of two
mesas with smooth tops that appear radar dark, surrounding collapsed
areas are radar bright. The sides of the volcano show numerous bright
overlapping flows that provide the edifice with a roughly radial
outline. Note radial fractures to the east and south. Darker flows in
the southeast quadrant are probably smoother than the bright flows
closer to the eruptive center. An impact crater located in the
northeast quadrant (20 km in diameter) is partially buried by lava
flows. Illumination is from the left at an incidence angle of 46
deg.
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