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Q2W6 Mountains V
Mountains Vocab
| Term | Definition |
|---|---|
| deformation | A change in the shape of rock due to stress. |
| tension | Strain that occurs when forces stretch an object. |
| fault | A break in a body of rock due to stress |
| compression | Strain that occurs when forces squeeze an object. |
| shear stress | One end is pushed one way and the other end goes the other way |
| Tension | occurs at divergent plate boundaries where plates are pulling away from each other. |
| Compression | occurs when rocks are pushed toward each other. This is common at convergent plate boundaries. |
| Shear | occurs when sections of rock are pushed in parallel but opposite directions. This occurs commonly at transform boundaries. |
| Normal Fault | A break in rock formed as rocks are being pulled away from each other. These types of faults will most commonly occur at divergent plate boundaries. |
| Reverse Fault | A break in rock formed as rocks are being pushed toward each other. These types of faults will most commonly occur at convergent plate boundaries. |
| Strike Slip Fault | Shearing stress causes this type of fault to form as plates move horizontally past each other. These faults are commonly found at transform boundaries. |
| anticline | a fold in the rock that involves up arched layers. This causes the older rocks to be found in the center of the arch |
| syncline | a fold in the rock that involves down arched layers. This causes the younger rocks to be found in the center of the arch |
| mountain | A landform that extends above its surrounding terrain and has a pointed top, called a peak. Almost always formed at plate boundaries |
| Folded Mountains | found at convergent boundaries. Plates at convergent boundaries push toward each other causing the rocks to buckle and fold. This causes the rocks to be pushed upward (Appalachian Mountains, Rockies) |
| Fault-block Mountains | form along divergent plate boundaries as blocks of rock shift up and down along normal faults. As plates pull apart from each other, huge blocks of rock tilt and shift forming mountains |
| Volcanic Mountains | formed when molten material reaches the Earth's surface through cracks in the crust. New materials form layers until a cone-shaped landform. Volcanoes can be formed on land or in the ocean. |
Created by:
MsLW
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