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Dip Slope

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Types of Flows

Fig. 14-24, p.421

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Results of solifluction in Fairbanks, Alaska

Fig. 14-22, p.420

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Complex movement in which Slumping occurs at the head, followed by an Earthflow.

Fig. 14-19, p.418

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March 1995 at La Conchita, California

Mass Wasting

La Conchita Ca 1995

Mass Wasting

La Conchita

Jan 10th, 2005

Show this:

• http://news.bbc.co.uk/2/hi/europe/8517378.stm

• https://www.youtube.com/watch?v=TfvmbDOeo70

• rocky debris flow

• Hawaii mega tsunami

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Fig. 14-21, p.419

Fig. 14-9, p.406

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A Long Run-Out SlideOr

Debris AvalancheThe Frank Slide, Alberta Canada1903. Killed 70 - 90 people. Block of rock 650m high 900m wide, 150m thick, fell for ~103 seconds, at ~70mph. Travelled over 3Km.

Acoustic Fluidization?Air cushion?

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Relative slope-stability map of part of San Clemente, California

Fig. 14-30, p.425 Fig. 14-31, p.426

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Fig. 14-32, p.426

Giant Hawaiian Landslides

Lituya Bay Alaska7 miles long, 2 miles wide

Mega-Tsunami on July 9th, 1958Cause: Giant Rockfall triggered by an earthquake

http://geology.com/records/biggest-tsunami.shtml

Max Height of wave ~1,720 feet (516M)All trees and vegetation were completely stripped away in Gilbert Inlet

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