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Supervolcanoes Blasted Ancient Mars

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#1 ILikePluto

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Posted 02 October 2013 - 12:42 PM

Colossal eruptions rocked the red planet's youth

by Ken Croswell

Gigantic volcanic eruptions, far greater than the worst in human history, wracked Mars during its first billion years, say planetary scientists. These "supervolcanoes" spewed enormous quantities of carbon dioxide, water vapor, and sulfur dioxide into the atmosphere, affecting the climate—for good or for ill—at a time when life may have been struggling to arise.

Full story at ScienceNOW.

#2 GregLee1

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Posted 02 October 2013 - 01:36 PM

That's an interesting phrase: "when life may have been struggling to arise".

#3 Jay_Bird

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Posted 02 October 2013 - 02:44 PM

It's on BBC science now too. Would these have been widespread enough that supervolcano heat loss could be new added reason why Mars cooled internally much faster compared to larger Earth, and lost magnetic dynamo, and missed out out on extensive plate tectonics?

#4 llanitedave

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Posted 02 October 2013 - 07:44 PM

I'm sure Earth's early volcanoes were at least as active, if not more so.






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