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ILikePluto
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Reged: 02/17/09

Supervolcanoes Blasted Ancient Mars new
      #6113187 - 10/02/13 01:42 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.


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GregLee1
professor emeritus


Reged: 07/21/13

Loc: Waimanalo, HI
Re: Supervolcanoes Blasted Ancient Mars new [Re: ILikePluto]
      #6113293 - 10/02/13 02:36 PM

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

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Jay_Bird
Carpal Tunnel
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Reged: 01/04/06

Loc: USA
Re: Supervolcanoes Blasted Ancient Mars new [Re: GregLee1]
      #6113411 - 10/02/13 03:44 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?

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llanitedave
Humble Megalomaniac
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Reged: 09/26/05

Loc: Amargosa Valley, NV, USA
Re: Supervolcanoes Blasted Ancient Mars [Re: Jay_Bird]
      #6113993 - 10/02/13 08:44 PM

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

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