Tuesday, April 1, 2014

Re: [Geology2] Topography of Plate Tectonics



Hi Allison,

There are roughly 36 volcanoes/volcanic fields in Antarctica with only one at the moment in a state of eruption (Mt. Erebus). Most of these volcanoes' last eruptive period occurred during the Holocene, so the potential for future activity is there for many of them. McMurdo Station (manned by the US) lies near the foot of Mt Erebus so the opportunity for further research on Antarctic vulcanology is ongoing.

As for the Arctic end of things, there are actually two North Poles: one is the geographical North Pole or the northernmost point of the earth where the axis of rotation of the earth meets the surface, and then there's the magnetic North Pole that is the point on earth where a compass would point straight downward.  The very stable, geographic North Pole is located in the Arctic Ocean and beneath shifting sea ice, and also is not near any plate boundaries or hot spots. The magnetic North Pole is also not near any plate boundaries, but is on the move away from Canadian territory and heading towards Russia.

Hope this helps,
Lin





On Tue, Apr 1, 2014 at 10:51 AM, Allison Maricelli-Loukanis <allison.ann@att.net> wrote:
 

Great map! Wonder why there is not much activity in either Antarctica or the other pole.. sorry I am having a senior moment..allison




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