New research provides further evidence that rocks representing up to a billion years of geological time were carved away by ancient glaciers during the planet’s “Snowball Earth” period, according to a study published in Proceedings of the National Academy of Sciences.
The research presents the latest findings in a debate over what caused the Earth’s “Great Unconformity”—a time gap in the geological record associated with the erosion of rock up to 3 miles thick in areas across the globe.
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