Law of Superposition
Law of Crosscutting
Law of Inclusion
Check out this great video
June 1991, Mount Unzen in Japan erupts and releases a pyroclastic flow that kills French volcanologists Katia and Maurice Krafft.
May 1980, Mount St Helens erupts causing the largest landslide in recorded history.
OPTIONAL: What more @ https://www.youtube.com/watch?v=0KNqUwgqbZw
Watch on Speed 1.25
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