Stack #107869
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| word |
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| definition |
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| shoreline |
the boundary between land and a body of water. |
| surf |
a group of waves that break as they reach the shoreline. |
| beach |
any area of the shoreline made up of material deposited by waves. |
| longshore current |
a water current that moves the sand in a zigzag pattern along the beach. |
| sandbar |
an underwater or exposed ridge of sand, gravel, or shell material found in open water. |
| barrier spit |
an exposed sandbar found in open water that is connected to the shoreline. |
| saltation |
the movement of sand or other sediments by short jumps and bounces caused by the wind or |
| deflation |
a form of wind erosion in which fine, dry soil particles are blown away. |
| loess |
very fine sediments deposited by the wind. |
| dunes |
a mound of wind- deposited sand that keeps its shape even though it moves. |
| slip face |
the steeply sloped side of a dune. |
| glacier |
a large mass of moving ice. |
| glacial drift |
the rock material carried and deposited by glaciers. |
| till |
unsorted rock material that is deposited directly by a melting glacier. |
| moraines |
the most common type of till that form ridges along the edges of glaciers. |
| stratified drift |
a glacial deposit that has been sorted and layered by the action of streams or meltwater. |
| mass movement |
the movement of a section of land down a slope. |
| rock fall |
a group of loose rocks that fall down a slope. |
| landslide |
the sudden movement of rock and soil down a slope. |
| mudflow |
the flow of a mass of mud or rock and soil mixed with a large amount of water down a slope. |
| lahars |
a mudflow caused by heavy rains mixed with volcanic ash. |
| creep |
the slow downhill movement of weathered rock material. |
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