My 7 year old would like to know what are these cracks?
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My 7 year old son would like to know whether these lines are cracks in the ice?
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by
DannyU
more like tunnels, carved by carbon dioxide gas trapped under the surface. dark dust is deposited when the gas erupts, a bit like a geyser
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by
mschwamb
scientist, translator
Following up on what DannyU said you learn more about that process here and here.
Cheers,
~Meg
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