"There's gonna be lot's of pretty pictures." K.S. Martin-Wells, J. Partee, and J. Nebel-Crosson
This LPI is from the last series of Crater Consortium lectures. It focuses on melt structures on Luna and whereas it is unrelated to Artemis, spotting the melt-zones in Artemis craters will be a handy thing to be able to do, since when you see half a melt covered by shadow or maybe ice, you can guess what's under it.
Tycho crater is always visible when the lower half of the moon is. It is well defined, under Mare Nubium, the southernmost Mare. (The bright yellow splat in the map below.)
- 3:50. The craterlets from Tycho's ejecta will sometimes end up in crater walls that face Tycho. Good rule to keep in mind.
- At 6:10 you see an image that maybe was a melted piece of ejecta that came in at a low angle and smeared itself across the surface.
- The image at 6:35 looks much like a flow of Andesite that broke up at the margins leaving big boulders and cracks perpendicular to the flow direction. Typical igneous stuff.
With the pictures seen you see how to spot a small crater in a big crater wall, and get a sense of a flow. Some of these slides are especially good because one cannot easily tell uphill from downhill looking from straight down, but the speaker demonstrates how she can quickly do it. Exposing ourselves now may help pick out Artemis South-Pole features later.
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