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Seashell record verified vs ice core bubble record over 800,000 years

A formaminifera fossil record gathered during the Integrated Ocean Drilling Program Expedition in the western tropical Pacific was verified existing records from bubbles trapped in Antarctic ice cores that stretch back 800,000 years.

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Seashell record verified vs ice core bubble record over 800,000 years
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Antarctic ice core bubbles record atmospheric composition precisely
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Records matching over 800,000 years will match over 20 million years
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