Another Giant Crater Appears on Siberia's Arctic Tundra
Another enormous crater has been found on the Arctic tundra in Siberia. The latest depression, which is 650 feet wide, was found on the Gydan peninsula—a region to the east of the Yamal peninsula, where a 165 foot deep crater was recently discovered.
The latest crater was found by Oleg Shabalin, head of the nearby Gyda village. He reported the find, thinking it may have formed through an explosive release of methane as others like this are known to develop. These funnels of gases are "increasingly common throughout the tundra zone of Russia," he told The Siberian Times.
However, scientists have said this depression, which is about 65 feet deep but filled with sludge, likely formed as a result of warm temperatures, with ice trapped in the permafrost melting and causing the soil to collapse.
Marina Leibman, from the Earth Cryosphere Institute, part of the Russian Academy of Sciences, told the website the formation was a "thermocirque"—a slump that forms through the thawing of ice-rich permafrost.
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