Geological History Of The Grand Canyon Country
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Explains that the sedimentary rock layers of the Grand Canyon country represent the five eras of geologic history. Uses animation and life action to indicate the successive rock layers and to interpret them in terms of the ancient landscapes which they represent.
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- 16mm Filmography (legacy record) — title, year, format, sound, description, catalog record
Original permalink · Record added 2023-02-27 02:41:18