Geologic Journey: The Canadian Shield The Nature of Things : Season 46 Episode 27
CBC Television 1h 00m
Aired: April 6th, 2008 @ 8:00 PM EST on CBC Television
Tells the tale of the birth of the immovable Canadian Shield, the oldest rock formation on earth. Also, how the actual mineral content of earth's has been altered through constant pounding from molten rocks from space.
