We really don't know much about the current and ancient volcanism on Antarctica, but researchers from British Antarctic Survey claim they have found evidence of subglacial eruptions in western Antarctica, mostly in the form of ash and volcanic debris intercalated with the ice. It would not be surprising if there was active volcanism underneath the ice sheets of the continent. However, they then take it one (or multiple) step(s) further by saying that this subglacial volcanism might explain the warming seen on the western side of the continent. Now, that would be very surprising as the commentary on the news report details. Antarctica is definitely a big black hole in terms of what sort of volcanism to expect beyond Erebus.
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Two tidbits from New Zealand:
- A recent survey of volcanoes in the Kermadec Arc north of New Zealand suggest that there is abundant - and recent - undersea volcanism. Scientists from University of Washington (one of my former homes) and Southhampton University (UK) explored a number of submarines…
The next up in my Volcano Profiles Series, is one of the most remote volcanoes on the planet, yet also one of the more closely studied and monitored (albeit from afar). Joining Vesuvius, Hood and Rabaul is Mt. Erebus, an active volcano on Ross Island in Antarctica and it definitely has some unique…
Did you ever leave your freezer door slightly open on a humid day only to find chunks of new ice formed at the gap? When that happens, did you conclude "Oh, my freezer is colder than usual, I wonder how that happened?" No. You concluded that you had left the door slightly open, some cold got out…
The amount of ice lost to the sea from Antarctica has increased by 75 percent in the last 10 years. This is the result of an increase in glacial flow. It had previously been thought, and perhas was the case, that Greenland ice loss outpaced the Antarctica. This is no longer the case.
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Hi Erik, this is fascinating. When I have the time I check out about 25 different science sites in addition to my core staple of volcano and earthquake reading. In them, I've seen reports of a large volcanic chain under the Arctic. I've also come across a report of a believed volcano (or warm spot) under Greenland in spot where rapid ice movement originates.
Geologists are in a unique position to understand earth's history and read the records of the past.
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