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Sandbox analog models:

Sandbox analog models: Sketch a cross section of the ‘mountain’ through the middle, normal to the plate boundary. Which one has higher basal coefficient of friction ?. A. B. B’. A’. Critical taper equation The relationship of the topographic slope ( α ) to

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Sandbox analog models:

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  1. Sandbox analog models: Sketch a cross section of the ‘mountain’ through the middle, normal to the plate boundary. Which one has higher basal coefficient of friction? A B B’ A’

  2. Critical taper equation • The relationship of the topographic slope (α) to • the material properties (angles of internal and basal frictions) • For cohesionless material, (Koons, 1990)

  3. Sandbox analog models: Construct ‘beachball ‘ diagrams showing the seismogenic instantaneous strain and fault motion.

  4. Sandbox analog models: Construct beachball diagrams. Where beachball diagrams show the predominantly strike-slip nature?

  5. Shear strain rate of weak base (φb = 15˚ ) model

  6. Shear strain rate of strong base (φb = 45˚ ) model

  7. Horizontal velocity of weak base (φb = 15˚ ) model

  8. Vertical velocity of weak base (φb = 15˚ ) model

  9. Horizontal velocity of strong base (φb = 45˚ ) model

  10. Vertical velocity of strong base (φb = 45˚ ) model

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