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Tsurugi Wrote:
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>
Quote

More than half the bedrock of Antarctica is
> below current sea level, and the more the ice
> shelves melt, the higher the percentage of bedrock
> that will be below sea level...
>
> Not necessarily true. All that ice is
> heavy. Isostatic depression is likely to be
> the reason so much bedrock is below sea level.
> Isostatic rebound would push the entire continent
> far above its current level should the ice melt.
>
> For example, the portion of North America that sat
> beneath the Laurentide and Cordilleran ice sheets
> has risen hundreds of meters since deglaciation
> and will possibly continue to rise ever more
> slowly for the next 10k years.
>
> Glacial Isostacy


Tectonic plates : magma = iceberg : ocean.

Thanks.

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Subject Views Written By Posted
Mans Origins South America & Migration To North America 337 coffee2ful 03-Nov-17 15:33
Re: Mans Origins South America & Migration To North America 86 Origyptian 08-Nov-17 18:30
Re: Mans Origins South America & Migration To North America 69 Tsurugi 09-Nov-17 05:47
Re: Mans Origins South America & Migration To North America 102 Origyptian 10-Nov-17 01:09


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