Originally posted by Essan
However, there is no direct evidence that this happened, and in any case the raised land would have been a mix of volcanic rock and sea floor mud,
totally devoid of life.
No, there's no direct evidence of it happening. As for whether or not life might have found a foothold, I think that could be up for debate.
Volcanic soil is a good place for plants to sprout. I don't know about sea floor mud. I can imagine it being rather nutrient-rich, what with all
the little dead things in it.
A lot would depend on when the bulge would have first pushed Atlantis to the surface. The last European glaciation ended about 10,000 years ago,
which puts the concurrent rise in the crust at just about the 12,000 year figure for the destruction. So the timing is about right.
The last general glaciation (including the Devensian glaciation) began, however, approximately 70,000 years ago. More than enough time for a raised
part of the Mid-Atlantic ridge to have grown a nice little ecosystem.
Taking a quick look at the bathymetric data...
... depending on how much coastline it ended up with, it looks like Atlantis could have been a relatively nice place. If the Gulf Stream was chugging
away, looks like it would have warmed up some nice northern plains, good for crops like wheat. The mountain areas in the middle would catch a lot of
rain and filter it down as fresh water into the Central and Eastern Plains, where it looks like there would be lots of large fresh water lakes. There
might also be some microclimates in the mountain areas, warmed by volcanic hot springs. Might even get some tropical fruit and stuff there.
The really bad thing, though -- and this might be how they lost the capitol city -- is that the south-central plain may have been pretty close to sea
level, with only a small ridge keeping the water out to the south. A combination of rapid sea level rise with a corresponding drop in the southern
sea wall would have flooded the entire south-central plain. Which is where I imagine they might have put the capitol. Along the banks of the large
river coming off the mountains, good for river travel. Also close enough to the sea to be a good port to sail out to Africa and points East, swinging
down into South America, and up again, maybe even along the coast of North America.
Anyway, like you said. No evidence of it. And after sitting at the bottom of the Atlantic for 12,000 years, there might not be much left of anything
anyone might have built. Unless they used really huge rocks.
Still, like I said. Could have been a very nice place.
[edit on 28-2-2006 by Enkidu]