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Ancient Earth

galgot

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Ancient Earth globe :
 

sferrin

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200 million year old Earth looks like an interesting place to live geographically.
 

CJGibson

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200 million year old Earth looks like an interesting place to live geographically.
Geographically maybe, atmospherically maybe not - 15% oxygen and 0.4% Carbon dioxide - so you might not have enough puff to outrun a hungry warmed-up Saurosuchus.

Chris
 

sferrin

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200 million year old Earth looks like an interesting place to live geographically.
Geographically maybe, atmospherically maybe not - 15% oxygen and 0.4% Carbon dioxide - so you might not have enough puff to outrun a hungry warmed-up Saurosuchus.

Chris
Just move down to sea level. (I live at 4,200 feet. Don't know if that would be enough to make a difference though.)
 

Hood

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That is a neat little site, been looking for something like that for a while.
 

CJGibson

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Chris
Just move down to sea level. (I live at 4,200 feet. Don't know if that would be enough to make a difference though.)

15% oxygen at sea level is the 'equivalent' of 21% at 9,000ft, so you're probably OK at sea level.

Chris
 
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Nik

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I'm still wondering why the North Atlantic failed to fully un-zip *West* of what is now Greenland. It left that arm as an Aulacogen, switched to the East and spawned what became Iceland...

With Greenland close to Norway / Finland, the Storegga slides would not have an abyssal plunge. Perhaps their tsunamis would not have swamped the rump of Doggerland, which might have endured into historical times, overturning UK history...
 

CJGibson

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All down to trilete junctions and thermal doming.

Chris
 

Hood

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I've sometimes pondered Doggerland and its effects had it not sunk beneath the waves (which seems a tall order given the sinking crust and rising sea levels).
Northern European history would have been quite different in many ways.

Whatever the tribulations of life on this planet, its the movement of the crust that deals the cards. Everything else adapts to that.
Novopangea will be an interesting place too.
 
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