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Composition of toxic ancient ocean gives clues for the future

from Nature World News

By analyzing seafloor mud samples, a research team from University of California, Riverside has quantified the toxic conditions of the oceans about 94 million years ago, correcting data yielded by previous research and providing a clearer picture of the chemical composition of the oceans. Along with the first major proliferation of animal life on Earth about 600 million years ago, the levels of oxygen in the ocean and atmosphere rose dramatically. more


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