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The oldest rocks on Earth

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Summary
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75% Informative

The Jack Hills , in Western Australia , contains zircons dating to 4.4 billion years old .

The Nuvvuagittuq Greenstone Belt in northern Quebec may hold the world's oldest preserved rock.

Rocks in the Acasta Gneiss Complex in northern Canada have been dated to 4 billion years ago .

Anshan area in northeastern China holds the country's oldest rocks and some of the most ancient rocks in the world.

Apollo 14 astronauts collected the roughly 4 billion-year-old rock, nicknamed Big Bertha , from the moon's surface in 1971 .

The finding suggests it formed on Earth but was knocked away from our planet by a giant asteroid impact.

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89

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95

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43

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formal

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English

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long-living

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