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Ch.2 section 1
Question | Answer |
---|---|
Stress | A force acting on to rock change its shape or volume. |
Shearing | Stress that pushes masses of rock opposite directions |
Compression | Stress that squeezes rock or folds it till breaks |
Tension | Stress that stretches rock so that it becomes thinner in the middle |
Strike-slip fault | A fault where rocks on either side move past each other sideways with lhs A change in the volume or shape of Earth’s crusittle up-or-down motion |
Normal fault | A fault where the hanging wall slides downward; caused by the tension in the crust |
Hanging wall | The block of rock that lies above a fault line |
Footwall | The block of rock that lies below the fault line |
Reverse fault | A type of fault where the hanging wall slides upward |
Fold | A bend in rock that forms where part of Earth's crust is compressed |
Anticline | An upward fold in rock formed by compression of Earths crust |
Syncline | A downward fold in rock formed by comprehension in Earth's crust. |
Plateu | A large area of flat land elevated high above sea level |
Fault | a break in Earth's crust where slabs of rock slip past each other |
fault-block mountain | A mountain that forms where a normal fault uplifts a block of rock |
deformation | A change in the volume or shape of Earth’s crust |