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Just reading up on Triton's geology .. man its complex .. cryovolcanism, cantaloupe terrain, ridges, valleys, circular walls, pits, polar caps, tectonic plates …
Its been warming up recently, also … lots of theories for this including surface ice albedo changes resulting in heat retention, frost pattern changes ..
Its got one of the highest 'Bond albedos' (fraction of EM power scattered back into space), in the solar system .. sensitive to small variations in spectral albedo.
The surface is 55% frozen Nitrogen, water ice 15-35%, dry ice (CO2) forming the remaining 10-20%. Trace ices are 0.1% methane (Accounts for the red surface colour), 0.05% CO possibly ammonia on the surface, too.
It seems the frozen methanol behaviour might be more relevant to the internals of the moon, rather than the surface geology, though .. ie: in helping to explain the eruptions of the geysers/cryovolcanos ..
Cheers
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