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submitted 6 months ago by troyunrau@lemmy.ca to c/geology@lemmy.ca

cross-posted from: https://lemmy.ca/post/14740589

high arctic desert. Yes there's water, but no real vegetation.

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[-] niktemadur@lemmy.world 3 points 6 months ago* (last edited 6 months ago)

Check out the Google Earth satellite image, there's a figure-eight, I wonder how it ended up looking like two craters side-by-side, their rims apparently touching.

Here it is.

[-] troyunrau@lemmy.ca 3 points 6 months ago

The lower grey feature is the crater -- the grey rock is impact melt breccia -- the lava pool that flooded the crater after impact. The upper feature is erosional -- river valleys -- that only gives the illusion of a crater due to its roughly circular expression combined with the human eye wanting to see patterns. But the rocks there are definitively not crater rocks.

this post was submitted on 05 Feb 2024
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Geology

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