Abstract
Multispectral images obtained during the Galileo probe's second encounter
with the moon reveal the compositional nature of the north polar
regions and the northeastern limb. Mare deposits in these regions
are found to be primarily low to medium titanium lavas and, as on
the western limb, show only slight spectral heterogeneity. The northern
light plains are found to have the spectral characteristics of highlands
materials, show little evidence for the presence of cryptomaria,
and were most likely emplaced by impact processes regardless of their
age.
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