View Full Version : Seething volcano buried under Antarctica's ice

2013-Nov-18, 03:09 AM
New Scientist wins the extreme headline competition:
Seething volcano buried under Antarctica's ice (http://www.newscientist.com/article/dn24589-seething-volcano-buried-under-antarcticas-ice.html#.Uol93I2j2WY)

It's a land of ice and fire. For the first time, an active volcano has been spotted rumbling away under the ice sheet of west Antarctica. It's further evidence that the frozen continent is anything but still.
LA Times: Volcano discovery hints at fire below ice in Antarctica (http://www.latimes.com/science/sciencenow/la-sci-sn-volcano-ice-antarctica-20131115,0,6645564.story#axzz2kxdU0flY)
AAAS: Magma Boils Beneath Antarctic Ice (http://news.sciencemag.org/earth/2013/11/magma-boils-beneath-antarctic-ice)
Phys Org: Volcano discovered smoldering under a kilometer of ice in West Antarctica (http://phys.org/news/2013-11-volcano-smoldering-kilometer-ice-west.html)

The inspiration for all this fiery rhetoric is a humble letter to Nature Geoscience: Seismic detection of an active subglacial magmatic complex in Marie Byrd Land, Antarctica (http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo1992.html)

Evidence includes two swarms of seismic activity in 2010-2011 at 2540 km depth beneath a hill buried by 1/2 a km of ice. The hill is covered with an 8,000 year old ash deposit, apparently derived from a nearby dormant volcano.
It seems volcanic activity continues in West Antarctica's Executive Committee mountain range, but contrary to some reports I've seen, there are no new magmatic heat sources melting the bottom of the ice cover and speeding its flow into the southern oceans.

2013-Nov-22, 06:58 PM
It is easy to just think of that land as just a flat ice-sheet--but it is a continent like any other--with all types of things going on.

2013-Nov-23, 01:10 AM
Much humor intended, but seething volcano seems to imply that they are not as hot or explosive as they can be at times, Maybe they should of titled the article 600degre magma may de-ice Antarctica, and flood oceans by 80 meters! Now that would of be dramatic:D

2013-Nov-27, 10:16 PM
I don't see flood basalt coming from there, but Erebus might throw some readings off, degassing there.