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Arctic coring expedition continues to yield new clues

e chemistry of the organic carbon in the ACEX cores may rule out some earlier theories about what caused the PETM. The diminution of these alternate explanations strongly suggests that an enormous amount of carbon entered the atmosphere at the beginning of the PETM, either from volcanic eruptions, or the melting of oceanic gas hydrates ?mixtures of methane and ice on the seafloor.


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Source:Integrated Ocean Drilling Program Management International


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