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Where would you go to see exposed one of the most complete sequences of rock anywhere, representing a period.........

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Where would you go to see exposed one of the most complete sequences of rock anywhere, representing a period of nearly 2 billion years of the Earth's history?

posted Jan 8 by Puneet Batra

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The Grand Canyon, USA
The major sedimentary rock layers exposed in the Grand Canyon and in the Grand Canyon National Park area range in age from 200 million to nearly 2 billion years old. Most were deposited in warm, shallow seas and near ancient, long-gone sea shores. Both marine and terrestrial sediments are represented, including fossilized sand dunes from an extinct desert.

answer Jan 9 by Pankaj Deshmukh
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