On the moon? Surely the word geology only makes sense in reference to Earth.
What about calling it lunology instead?
High resolution images sent back by ESA's SMART-1 lunar probe are helping scientists piece together the geological and volcanic history of the Moon. SMART-1 AMIE image mosaic of the edge of Mare Humorum SMART-1 AMIE image mosaic of the edge of Mare Humorum. The pictures, combined with data from the US's Clementine …
Shouldn't have any bearing on the theories of lunar formation whatsoever. Geological features occur as a result of surface processes, whatever the moon's formation process was, what we are seeing now on the surface is as a result of processes which occured once the surface was there to be acted upon. So whatever happened before the surface cooled sufficiently for geological processes to take place, we can't see.
All we know is small iron core, weird angular momentum, isotopic composition similarities to the earth. So any theory of lunar formation has to take into account the facts as we observe them, and the collision / glancing blow theory covers all the bases well.
Selenology, aerology etc sound cool and distinct from plain old earth geology ... but how far are you going to take it ? Plutology (Hadeology ?) Titanology ? Encladiology ? Ioology ? After a point it just gets silly, like english collective nouns. I say we stick with "lunar geology", "martian geology" etc.
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