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Topic: Climate & Pollution     Department: News

Images from Acidifying oceans

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by Courtesy James Zachos, Uc-Berkeley

Core samples from the South Atlantic show the typical pale-colored sediment indicative of a healthy carbonate-rich seafloor, interrupted by a dark-colored band of clay, representing a blip in geologic time of 100,000 years, when the ocean was highly acidic, about 55 million years ago.

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