Geology of the Grand Canyon area
The geology of the Grand Canyon area includes one of the most complete and studied sequences of rock on Earth. The nearly 40 major sedimentary rock layers exposed in the Grand Canyon and in the Grand Canyon National Park area range in age from about 200 million to nearly 2 billion years old. Most were deposited in warm, shallow seas and near ancient, long-gone sea shores in western North America. Both marine and terrestrial sediments are represented, including fossilized sand dunes from an extinct desert. There are at least 14 known unconformities in the geologic record found in the Grand Canyon.
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Geology of the Grand Canyon area
The geology of the Grand Canyon area includes one of the most complete and studied sequences of rock on Earth. The nearly 40 major sedimentary rock layers exposed in the Grand Canyon and in the Grand Canyon National Park area range in age from about 200 million to nearly 2 billion years old. Most were deposited in warm, shallow seas and near ancient, long-gone sea shores in western North America. Both marine and terrestrial sediments are represented, including fossilized sand dunes from an extinct desert. There are at least 14 known unconformities in the geologic record found in the Grand Canyon.
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Article principal : Grand Cany ...... affectent toujours la région.
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Die Geologie des Grand Canyon ...... n Gesteinsfolgen der Welt dar.
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La geologia della zona del Gra ...... roccia più studiate del mondo.
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La geología del área del Gran ...... ecuencias rocosas en el mundo.
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The geology of the Grand Canyo ...... vents still affect the region.
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جيولوجيا الجراند كانيون هي أحد ...... ات لصخور تغير من شكل الاخدود .
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Article principal : Grand Cany ...... de la région du Grand Canyon.
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Die Geologie des Grand Canyon ...... marinen Ursprungs finden sich
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La geologia della zona del Gra ...... rivanti da un deserto estinto.
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La geología del área del Gran ...... de un desierto ahora extinto.
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The geology of the Grand Canyo ...... ord found in the Grand Canyon.
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جيولوجيا الجراند كانيون هي أحد ...... بقا للتسلسل الجيولوجي الزمني .
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Geologia della zona del Grand Canyon
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Geologie des Grand Canyon
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Geology of the Grand Canyon area
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Geología del área del Gran Cañón
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Géologie de la région du Grand Canyon
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جيولوجيا جراند كانيون
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