Wednesday, April 10, 2013

Re: [Geology2] Samara, the Russian city being ‘eaten alive’ by giant sinkholes



Lin and others

I wondered how Russia could have one of its biggest cities in such a crisis. Why build on such dangerous ground? 

Unprecedented warming could explain how this happened.

From time to time I have wasted time watching "Ice Road Truckers" on the Discovery Channel. It hasn't escaped my attention that they too require a reliable refreezing of the top layers of parma frost for this transportation scheme to work. 

Has anyone contemplated the impact on the far north regions if this doesn't happen or if there is an unprecedented accelerated thaw? 

That lives are at stake is an understatement.


On Apr 10, 2013, at 4:37 PM, Lin Kerns <linkerns@gmail.com> wrote:

I'm so glad that someone here initiated this conversation, as you'll notice that some of the bedding below those sinkholes is composed of sandy sediments instead of an organically based bedrock. The type of sinkholes generated from permafrost thaw will only continue to worsen, given the melting that is occurring due to global warming.


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