Skyler Ware is a freelance science journalist covering chemistry, biology, paleontology and Earth science. She was a 2023 AAAS Mass Media Science and Engineering Fellow at Science News. Her work has also appeared in Science News Explores, ZME Science and Chembites, among others. Skyler has a Ph.D. in chemistry from Caltech.
Massive volcanic eruptions have reshaped Earth and its climate at several points in history. New research suggests that long after these surface eruptions ceased, carbon dioxide dissolved in underground magmas could have slowly escaped to the surface. This"cryptic carbon" may have contributed to prolonged periods of warming, slow climate recovery, and mass extinctions.
"The scale of these volcanic provinces, I think, is very difficult for humans to comprehend," said Ben Black, the study's lead author, a volcanologist at Rutgers University in New Jersey."We're talking about volcanic events that can mobilize enough magma to cover the continental U.S. half a kilometer deep.
By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over.In the new study, published in Nature Geoscience, Black and his colleagues proposed another explanation — that carbon continued to leak from the volcanoes after their eruptions ceased. Their simulations showed that initially, pressure in a magma chamber builds until cracks in the crust form, allowing the magma to seep out onto Earth's surface. But over time, the magma warms the crust enough that the surrounding rock flows more easily, making it harder to build up enough pressure for a surface eruption.
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