Types of Mass Movement.

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Presentation transcript:

Types of Mass Movement

Rock Fall

Slide 2.-Rockfall deposition, Yosemite National Park, California-On July 11, 1996, at 6:52 p.m. (Pacific Daylight Time), two large rock blocks, with a combined volume of between 23,000 and 38,000 m3 broke away from Glacier Point, near Happy Isles, a popular trailhead and concession stand. The rock disintegrated when it landed, creating an air blast that was so powerful that it flattened as many as 2,000 trees in the area. One person was killed at the concession stand, and 14 people were seriously injured. Rockfall hazard is a continuing problem at Yosemite National Park

La Conchita California

Point Fermin, California

Slow Flows: Creep

Mt. St. Helens Mud Flow (Lahar)

Before Eruption After Eruption

Turbidity Current