Ashtar Command - Spiritual Community Network

Scientists uncover largest volcanic region on Earth under West Antarctica

deception island volcano antarctica


deception island volcano antarctica

Posted by TW on August 14, 2017 in categories Arctic & Antarctic, Featured articles, Research

Scientists uncover largest volcanic region on Earth under West Antarctica

A remote survey suggested by third-year university student discovered 91 volcanoes in a massive region known as the West Antarctic Rift System. The volcanoes range in height from 100 m to 3 850 m (328 to 12 631 feet).

A study conceived by a third-year student at the University of Edinburgh's School of Geo-Sciences, Max Van Wyk de Vries, has revealed that West Antarctica’s vast ice sheet conceals almost 100 newly discovered volcanoes. Max came up with the idea by analyzing publically available radar mapping data of Antarctica.

He proposed his study to researchers in the School, who were impressed by the quality of Max’s work and used their expertise to verify the presence of the volcanoes.

Geologists and ice experts say the range has many similarities to East Africa’s volcanic ridge, which is currently acknowledged to be the densest concentration of volcanoes in the world.

They analyzed the shape of the land beneath the ice using measurements from ice-penetrating radar, and compared the findings with satellite and database records, as well as geological information from aerial surveys.

As a result, they found 91 previously unknown volcanoes, ranging in height from 100 m to 3 850 m (328 to 12 631 feet).

The peaks are concentrated in a region known as the West Antarctic Rift System, spanning 3 500 km (2 147 miles) from Antarctica’s Ross Ice Shelf to the Antarctic Peninsula.

"Antarctica remains among the least studied areas of the globe, and as a young scientist, I was excited to learn about something new and not well understood. After examining existing data on West Antarctica, I began discovering traces of volcanism. Naturally, I looked into it further, which led to this discovery of almost 100 volcanoes under the ice sheet," de Vries said.

Results from the study, which is the first of its kind, will help scientists understand how volcanoes can influence long-term fluctuations in the ice sheet. They could also help improve understanding of how the continent has changed during past climates.

The team's results do not indicate whether the volcanoes are active, but should inform ongoing research into seismic monitoring in the area.

Antarctica Map

Image credit: Landsat, Image Mosaic of Antarctica (LIMA) Project.

It is interesting to note, that a study published in 2014 in the Proceedings of the National Academy of Sciences found that Thwaites Glacier, the large, rapidly changing outlet of the West Antarctic Ice Sheet located in the Amundsen Sea, is not only being eroded by the ocean, it's being melted from below by geothermal heat.

The study suggested that the cause of the heat is the movement of magma and associated volcanic activity arising from the rifting of the Earth's crust beneath the West Antarctic Ice Sheet.

The findings significantly changed the understanding of conditions beneath the West Antarctic Ice Sheet where accurate information has previously been unobtainable.

In 2009, Eric Steig, a climate researcher at the University of Washington in Seattle, used a novel combination of historical temperature data from ground-based weather stations and more recent data from satellites and reconstructed a 50-year history of surface temperatures across Antarctica.

West Antarctica warming

Red represents areas where temperatures have increased the most during the last 50 years, particularly in West Antarctica, while dark blue represents areas with a lesser degree of warming. Temperature changes are measured in degrees Celsius. Image credit: NASA/GSFC Scientific Visualization Studio

As reported by NASA in 2009, his analysis shows that Antarctic surface temperatures increased an average of 0.12 °C (0.22 °F) per decade between 1957 and 2006. That's a rise of more than 0.5 °C (1 °F) in the last half century. West Antarctica warmed at a higher rate, rising 0.17 °C (0.31 °F) per decade.

The results of Steig's study were published January 22, 2009 in Nature. They confirm earlier findings based on limited weather station data and ice cores.

Learn more:

Researchers find surprisingly high geothermal heating beneath West Antarctic Ice Sheet

West Antarctic Ice Sheet breaking apart from the inside out

Featured image: Ring-shaped Deception Island, one of Antarctica's most well-known volcanoes, contains a 7-km-wide caldera flooded by the sea. A narrow passageway named Neptunes Bellows (left) cuts through the caldera wall and provides entrance to a natural harbor that was utilized as an Antarctic whaling station. Numerous vents located along caldera ring fractures circling the low, 14-km-wide island have been active during historical time. Photo by Juan Bastias (published in González-Ferrán, 1995).
Tags: antarctica, antarctica volcanoes
More things that might interest you
NASA study claims Antarctica gains ice, not contributing to sea level rise

A new study led by NASA's glaciologists Jay Zwally, says that an increase in Antarctic snow accumulation that began 10 000 years ago is currently adding enough ice to the continent to outweigh the increased losses from its thinning glaciers. The research...

November 02, 2015
Significant eruptions of Mount Erebus reported, Antarctica

One of the larger eruptions of Antarctica's Mount Erebus this year occurred at 09:12 UTC on December 4, 2014 and ejected bombs onto the summit cone of Erebus, Mount Erebus Volcano Observatory (MEVO) reports.Mount Erebus is one of several volcanoes in the McMurdo Vol

December 07, 2014
Huge Antarctic iceberg finally breaks free

After months of ‘hanging by a thread’, a vast iceberg the size of Norfolk has finally broken off Antarctica’s Larsen C Ice Shelf. Around 30 m (98 feet) of this 190 m (623 feet) thick block of ice sits above the sea surface. Scientists now have...

July 12, 2017
West Antarctic Ice Sheet breaking apart from the inside out

A new study has found the glacier bounding the West Antarctic Ice Sheet is breaking apart from the inside out. The Pine Island Glacier, one of the glaciers which will probably rapidly retreat, forms an important part of the ice shelf of the West Antarctic Ice Sheet....

Views: 31

Reply to This



Latest Activity

Krishna Kalki posted discussions
5 hours ago
"Blank Spots on the Map: The view from above - all the U.S. Army’s secret military bases…"
5 hours ago
Krishna Kalki replied to the discussion 'Why Was Secret Service at School in FL Months Before Shooting, “Training Teachers”'
"Can someone in America please tell Your president that it was a false flag"
6 hours ago
amparo alvarez posted a blog post


6 hours ago
Stick replied to the discussion 'Crisis Actor Exposed: Not A Registered Student, Father in the FBI, Rehearsing Scripted Lines on Camera, Witness in 2 Mass Shootings So Far'
7 hours ago
Steve Hutchinson posted a discussion
8 hours ago
Pet Rock posted discussions
16 hours ago
Saša Žervanov joined a group

Connect With Angels

For all that have seen and work with Angels. Others that would love to know more. How does one…See More

© 2018  

About Cookies | Read Community Guidelines | Contact Us | Community Sponsorship

  Powered by

   |  Report an Issue  |  Terms of Service