posted on Apr, 16 2010 @ 11:10 PM
reply to post by Watcher-In-The-Shadows
This is hardly a stretch at all. In fact, I would go so far as to say that it sounds... *GASP* logical! This is not some new concept made in the
deep, dark "Climate Change Laboratory of Doom", it's pretty much taking scientific knowledge (which a decent number of the posters on this thread
lack) and putting 2 and 2 together.
In fact, this phenomenon would be known by the name of glacial rebound. Look it up, really, it's not hocus-pocus. Try to imagine the immense amount
of weight a kilometers thick sheet of ice extending for thousands of miles would have. Not getting much of anywhere? Don't worry, I can't really
fathom it either. But the gist of it is that this has so much weight it actually depresses the surface of the earth!
Now this would also, by
default, compact the earth below it (we're talking lithosphere here).
Ok, now what happens when the huge ice sheets start shedding some of that weight and melting? The wieght is gone, and the earth actually rises
This is known as glacial rebound. Now since the ground was compacted under all that weight, it has expanded, leaving gaps and cracks.
Molten rock, which is quite viscous, has a knack for finding it's way into these. This will also open up the lava tunnels more so they can flow
Now that you have the basic scientific knowledge required to understand this (trust me there is a ton more behind it), you can do the putting 2 and 2
together thing now. Open up the lava tunnels, and you get more lava flow, which results in more eruptions. Now consider that the weight of ice
sheets pressing down and restricting flow could also have caused more pressure build-up in the lava, and you have a delightful recipe for an increase
in volcanic activity.
That's all for this thread folks! Look around for my avatar in other threads to find more delightful bits of wisdom and clarity! Thanks for