Scientists have solved the mystery of a giant volcanic eruption that occurred almost 200 years ago, causing a global cooling effect. By analyzing ash traces preserved in ice cores from Greenland, they identified the volcano as Simushir, located on a remote island in the Kuril Islands, disputed territory between Russia and Japan.
The mystery location of a giant volcanic eruption that occurred almost 200 years ago has finally been solved thanks to ash traces preserved in ice cores.
While scientists knew it was a major event, the identity of the volcano responsible remained unknown and fiercely debated, until now. "We analyzed the chemistry of the ice at a very high temporal resolution. This allowed us to pinpoint the precise timing of the eruption to spring-summer 1831, confirm that it was highly explosive, and then extract the tiny shards of ash. Finding the match took a long time and required extensive collaboration with colleagues from Japan and Russia, who sent us samples collected from these remote volcanoes decades ago.
Volcanic Eruption Climate Change Ice Cores Simushir Kuril Islands
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