Dating from the Eocene Epoch, the crater is likely less than 50 million years old, but the impact bored into Proterozoic sandstones well over 500 million years old.
它形成于始新世，距今可能不到5000万年，但是撞击钻入的原生代砂岩都已经超过5亿年。
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No doubt the cultural impact of the Internet epoch plays an important role in fostering integration with the global economy and ushering in the epoch of knowledge economy.