Tectonic plate movements over millions of years have lifted and tilted the layers, with records of ancient earthquakes in the rocks ...
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Galápagos deep-sea corals vanished for more than 1,000 years. Scientists think they know why
5,000 years ago, deep-water corals disappeared from the waters around the Pacific Ocean islands, study finds.
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How fossils tell Earth's timeless story
From rock layers to radioactive decay, scientists use a blend of dating techniques to piece together Earth's history. Relative dating reads the sequence of layers, while absolute dating measures time ...
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