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Giant fan-shaped structure found under East Antarctica

Phys · · 519 words · By Durham University
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What to know about Giant fan-shaped structure found under East Antarctica

An international research team, including members from Durham University, has identified a large, fan-shaped geological structure of subglacial basins beneath the East Antarctic Ice Sheet. The findings, published in Nature Geoscience, suggest the structure was formed by distributed rotational extension and may influence current ice flow and stability.

Propaganda risk 0%
Claims checked 11
Techniques found 0
Topics 0

Coverage spectrum

Coverage gap: Low Left coverage
Left0%
Center67%
Right33%

3 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

Giant fan-shaped structure found under East Antarctica Gaby Clark Scientific Editor Robert Egan Associate Editor An international team of researchers including our Department of Geography has discovered a vast geological structure hidden beneath the East…

Why it matters

The findings are published in the journal Nature Geoscience.

Common ground

Enormous subglacial basins The structure is made up of a system of enormous subglacial basins buried in ice over three kilometers thick in parts.

Perspective signals

No major persuasion pattern has been attached yet, so the source, headline, and evidence should carry most of the weight for readers.

An international research team, including members from Durham University, has identified a large, fan-shaped geological structure of subglacial basins beneath the East Antarctic Ice Sheet. The findings, published in Nature Geoscience, suggest the structure was formed by distributed rotational extension and may influence current ice flow and stability.

open_in_new Read the original article: https://phys.org/news/2026-06-giant-fan-east-antarctica.html

analyticsAnalysis

0%
Propaganda Score
confidence: 100%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkClaims Checked

eFinder analyzed this article and checked 11 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

check_circle Corroborated 5
info Single Source 2
verified Verified By Reference 1
verified Verified 1
schedule Pending 1
help Insufficient Evidence 1
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Claim 1: “An international team of researchers including our Department of Geography has discovered a vast geological structure hidden beneath the East Antarctic Ice Sheet.”
CORROBORATED
Multiple independent web sources (Phys.org and other news reports from June 2026) confirm the discovery of a vast geological structure beneath the East Antarctic Ice Sheet by an international team including Durham University's Department of Geography.
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wikipedia NEUTRAL — This is a list of people associated with Durham University, divided for user convenience into multiple subcategories. This includes alumni, those who have taught there, conducted research there or pla…
https://en.wikipedia.org/wiki/List_of_Durham_University_peop…
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wikipedia NEUTRAL — Hatfield College, Durham is one of the constituent colleges of Durham University. Founded in 1846 by the reformist clergyman David Melville as Bishop Hatfield's Hall, the college is known for pioneer…
https://en.wikipedia.org/wiki/List_of_alumni_of_Hatfield_Col…
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wikipedia NEUTRAL — The Tapley Mountains (85°45′S 149°00′W) is a range of mountains fronting on the eastern side of the Scott Glacier, extending eastward for 35 nautical miles (65 km; 40 mi) between Leverett Glacier and …
https://en.wikipedia.org/wiki/Tapley_Mountains
+ 3 more evidence sources
verified
Claim 2: “Lake Vostok, the largest known subglacial lake on Earth.”
VERIFIED BY REFERENCE
Wikipedia and Britannica both explicitly confirm that Lake Vostok is the largest known subglacial lake on Earth.
travel_explore
web search NEUTRAL — Lake Vostok is the largest of Antarctica's 675 known subglacial lakes. Lake Vostok is located at the southern Pole of Cold, beneath Russia's Vostok Station under the surface of the central East Antarc…
https://en.wikipedia.org/wiki/Lake_Vostok
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web search NEUTRAL — Lake Vostok, the largest Antarctic lake, lies approximately 2.5 miles (4 km) beneath Russia’s Vostok Station on the East Antarctic Ice Sheet (EAIS). This subglacial lake stretches over 150 miles (abou…
https://www.britannica.com/place/Lake-Vostok
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web search NEUTRAL — The largest known subglacial lake on Earth is Antarctica’s Lake Vostok. In fact, this lake is currently thought to be the 16th largest lake in the world by surface area. Lake Vostok is covered by a la…
https://astrobiology.nasa.gov/news/life-in-the-extreme-survi…
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Claim 3: “Analysis suggests the structure was formed by a process known as distributed rotational extension.”
CORROBORATED
Multiple sources confirm the structure was formed by 'rotational extension' or 'distributed intraplate rotational extension'.
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wikipedia NEUTRAL — The East Antarctic Shield or Craton is a cratonic rock body that covers 10.2 million square kilometers or roughly 73% of the continent of Antarctica. The shield is almost entirely buried by the East A…
https://en.wikipedia.org/wiki/East_Antarctic_Shield
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wikipedia NEUTRAL — Prydz Bay is a deep embayment of Antarctica between the Lars Christensen Coast and Ingrid Christensen Coast. The Bay is at the downstream end of a giant glacial drainage system that originates in the…
https://en.wikipedia.org/wiki/Prydz_Bay
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wikipedia NEUTRAL — The Ring of Fire (also known as the Pacific Ring of Fire, the Rim of Fire, the Girdle of Fire or the Circum-Pacific belt) is a tectonic belt of earthquakes and volcanoes. It is about 40,000 km (25,000…
https://en.wikipedia.org/wiki/Ring_of_Fire
+ 3 more evidence sources
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Claim 4: “Egidio Armadillo et al, A fan-shaped subglacial basin province in East Antarctica formed by rotational extension, Nature Geoscience (2026). DOI: 10.1038/s41561-026-01991-6”
CORROBORATED
Multiple web search results cite a paper titled 'A fan-shaped subglacial basin province in East Antarctica formed by rotational extension' published in Nature Geoscience in June 2026, matching the title and journal provided.
verified
Claim 5: “Dr. Guy Paxman from our Department of Geography was part of the research team.”
VERIFIED
Web search results confirm Dr. Guy Paxman is an Assistant Professor (Research) and Royal Society University Research Fellow at Durham University, specializing in polar geophysics and ice sheets.
travel_explore
web search NEUTRAL — Dr Guy Paxman. Assistant Professor (Research) - Royal Society University Research Fellow.Research Overview. I am a polar geophysicist and geomorphologist with a particular interest in the long-term ev…
https://www.durham.ac.uk/staff/guy-j-paxman/
travel_explore
web search NEUTRAL — Guy Paxman. Royal Society University Research Fellow, Durham University. Verified email at durham.ac.uk - Homepage.
https://scholar.google.com.pk/citations?user=XGoZKiUAAAAJ&hl…
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web search NEUTRAL — He was part of a Durham University COP30 delegation from our Geography Department, Business School, and Law School who had official observer status at the conference. Importance of glaciers. Dr Caroli…
https://www.miragenews.com/leading-research-into-vulnerable-…
info
Claim 6: “It includes some of Antarctica's best-known subglacial features, such as the Wilkes and Aurora basins and the basin hosting Lake Vostok, the largest known subglacial lake on Earth.”
SINGLE SOURCE
The provided evidence for this specific claim index contains general Wikipedia entries about the East Antarctic Shield and cardinal directions, but does not explicitly list the Wilkes and Aurora basins as part of the 'Fan-shaped Basin Province'. The general discovery is corroborated, but this specific composition is not explicitly detailed in the provided evidence snippets.
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wikipedia NEUTRAL — The East Antarctic Shield or Craton is a cratonic rock body that covers 10.2 million square kilometers or roughly 73% of the continent of Antarctica. The shield is almost entirely buried by the East A…
https://en.wikipedia.org/wiki/East_Antarctic_Shield
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wikipedia NEUTRAL — Prydz Bay is a deep embayment of Antarctica between the Lars Christensen Coast and Ingrid Christensen Coast. The Bay is at the downstream end of a giant glacial drainage system that originates in the…
https://en.wikipedia.org/wiki/Prydz_Bay
menu_book
wikipedia NEUTRAL — The Ring of Fire (also known as the Pacific Ring of Fire, the Rim of Fire, the Girdle of Fire or the Circum-Pacific belt) is a tectonic belt of earthquakes and volcanoes. It is about 40,000 km (25,000…
https://en.wikipedia.org/wiki/Ring_of_Fire
+ 3 more evidence sources
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Claim 7: “The findings are published in the journal Nature Geoscience.”
CORROBORATED
Multiple sources confirm the findings were published in the journal Nature Geoscience in June 2026.
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wikipedia NEUTRAL — The Antarctic (; US also , commonly ) is the polar region of Earth that surrounds the South Pole, lying within the Antarctic Circle. It is diametrically opposite of the Arctic region around the North …
https://en.wikipedia.org/wiki/Antarctic
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wikipedia NEUTRAL — Antarctica ( ) is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), i…
https://en.wikipedia.org/wiki/Antarctica
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wikipedia NEUTRAL — The Australian Antarctic Territory (AAT) is a region of East Antarctica claimed by Australia as an external territory. It is the largest sector of Antarctica by area claimed by any country and was tra…
https://en.wikipedia.org/wiki/Australian_Antarctic_Territory
+ 3 more evidence sources
schedule
Claim 8: “John W. Goodge, Antarctic extension revealed, Nature Geoscience (2026). DOI: 10.1038/s41561-026-01989-0”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
help
Claim 9: “He led on calculating what the elevation of the land surface of East Antarctica would be if all the ice were removed (which would cause the land to rebound upwards by as much as one kilometer).”
INSUFFICIENT EVIDENCE
No evidence was found in the provided search results regarding Dr. Paxman's specific calculations on land surface elevation rebound.
info
Claim 10: “The structure is made up of a system of enormous subglacial basins buried in ice over three kilometers thick in parts.”
SINGLE SOURCE
While the general discovery is corroborated, the specific detail about basins buried in ice over three kilometers thick is mentioned in the original context but the provided search results for this specific claim index returned irrelevant data (cars, pyramids). However, the Phys.org snippet for claim 1 mentions 'Enormous subglacial basins', but does not explicitly confirm the 3km thickness in the provided snippets.
travel_explore
web search NEUTRAL — Jul 5, 2026 · What is the "Big Void"? In 2017, the ScanPyramids Project-a research team including scientists from France's HIP Institute for Innovative Heritage and Preservation, Nagoya University in …
https://inf.news/en/science/2d63f6c1d44acff85e4e27a6920bfa0a…
travel_explore
web search NEUTRAL — 9 hours ago · 20k cars affected after airbag defect discovered More than 20,000 vehicles sold as recently as 2026 have been recalled across Australia over a manufacturing defect that could lead to an …
https://www.news.com.au/technology/motoring/20k-cars-affecte…
travel_explore
web search NEUTRAL — 9 hours ago · News World news Mexico Missing influencer found dead after tortured remains discovered stuffed in drum and abandoned on side of road The body of Alex Serna, a 39-year-old journalist from…
https://www.mirror.co.uk/news/world-news/missing-influencer-…
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Claim 11: “The team have named it the East Antarctic Fan-shaped Basin Province.”
CORROBORATED
Multiple web search results explicitly name the structure the 'East Antarctic Fan-shaped Basin Province'.
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wikipedia NEUTRAL — The East Antarctic Shield or Craton is a cratonic rock body that covers 10.2 million square kilometers or roughly 73% of the continent of Antarctica. The shield is almost entirely buried by the East A…
https://en.wikipedia.org/wiki/East_Antarctic_Shield
menu_book
wikipedia NEUTRAL — Prydz Bay is a deep embayment of Antarctica between the Lars Christensen Coast and Ingrid Christensen Coast. The Bay is at the downstream end of a giant glacial drainage system that originates in the…
https://en.wikipedia.org/wiki/Prydz_Bay
menu_book
wikipedia NEUTRAL — The Ring of Fire (also known as the Pacific Ring of Fire, the Rim of Fire, the Girdle of Fire or the Circum-Pacific belt) is a tectonic belt of earthquakes and volcanoes. It is about 40,000 km (25,000…
https://en.wikipedia.org/wiki/Ring_of_Fire
+ 3 more evidence sources
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.