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Interactive map. Earth’s Crust in Motion. Section 5-1. Earthquake. Shaking that results from rock movement below Earth’s surface. Stress. Stress. Force that acts on Earth’s crust to change its shape or volume. Shearing. One rock, Two directions. 3 kinds of stress. Tension.
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Earth’s Crust in Motion Section 5-1
Earthquake • Shaking that results from rock movement below Earth’s surface
Stress • Force that acts on Earth’s crust to change its shape or volume
Shearing One rock, Two directions. 3 kinds of stress
Tension Stretches rock 3 kinds of stress
Compression Squeezes rock 3 kinds of stress
Fault • Break in rock • Caused by stress • Slabs of crust slip past each other • Usually occur at plate boundaries
Shearing →Strike-slip faults Slip past sideways, no vertical motion “Transform boundary” at plate boundaries 3 kinds of FAULTS
Tension →Normal faults At an angle Above fault = Hanging Wall (slips down↓↓) Below Fault = Footwall 3 kinds of FAULTS
Compression →Reverse faults At an angle Hanging Wall (slips up↑↑↑) 3 kinds of FAULTS
Let’s Review • What kind of fault? • What kind of stress?
Let’s Review • What kind of fault? • What kind of stress?
Let’s Review • What kind of fault? What kind of stress?