Ancient rocks point to an early start for the Great Unconformity—the biggest gap in Earth’s rock record

Two-billion-year-old rocks in China suggest mountain building from Earth’s first supercontinent led to a planetwide burst of erosion

🔗 Read more: https://www.science.org/content/article/ancient-rocks-point-early-start-great-unconformity-biggest-gap-earth-s-rock-record

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