Parts of the Earth's Original Crust Remain in Place Today (VIDEO)

American Association for the Advancement of Science (AAAS)

Caption

Professor Jonathan O'Neil, Department of Earth and Environmental Sciences, University of Ottawa, explains how his team found evidence that the core of our stable continents was produced by the remelting of the Earth's primordial crust, believed to be more than 4.2 billion years old. This material relates to a paper that appeared in the March 17, 2017, issue of Science, published by AAAS. The paper, by J. O'Neil at University of Ottawa in Ottawa, ON, Canada, and colleagues was titled, "Building Archean cratons from Hadean mafic crust."

Credit

Dave Weatherall, University of Ottawa

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