click below
click below
Normal Size Small Size show me how
chaptereleven
mountains
| Question | Answer |
|---|---|
| isostasy | the balancing of gravity and buoyancy |
| compression | stress which squeezes and shortens |
| tension | stress which stretches and pulls apart |
| shear | stress which twists, bends, or breaks by pushing in opposite directions |
| anticline | A-shaped fold in which the older rock layers are in the center |
| syncline | U-shaped fold in which younger rock layers are in the center |
| monocline | fold in which both limbs of the fold are horizontal |
| normal fault | fault in which the hanging wall moves downward |
| reverse fault | fault in which the hanging wall moves upward |
| strike-slip fault | fault in which the hanging and footwalls move horizontally past each other |
| thrust fault | a low angle reverse fault |
| limb | the sloping sides of a fold |
| axial plane | plane that slices the fold into two symmetrical halves |
| strike | the direction of intersection along the surface of the fault or fold |
| dip | the angle the fault or fold plunges into the ground |
| Japan, Phillipines, Aleutians, Indonesia | examples of island arcs |
| Himalayas, Alps, Appalachians | examples of folded mountain ranges |
| Cascades, Andes | examples of volcanic mountain ranges |
| Galapagos, Hawaii, Yellowstone | examples of hot spots |
| East Pacific Rise, Mid-Atlantic Ridge | examples of mid-ocean ridges |
| Sierra-Nevada Mts, Basin and Range Mts. | examples of fault-block mountains |
| Adironacks, Black Hills | examples of dome mountains |