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LD ES - Ch 5
LD Earth Science - Chapter 5 - Glaciers, Oceans & Landscapes
Term | Definition |
---|---|
Alpine Glacier | Glaciers that forms in high mountains & flows through valleys, giving them a U-shape |
Arid | dry; a climate in which there is little precipitation |
Annular | Stream pattern of concentric circles formed on a mountain whose rocks have differing ability to resist weathering |
Continental glacier | A glacier that spreads over a "wide" geographic area |
Dendritic | Drainage pattern resembling a tree an its branches |
Drainage pattern | Arrangement of adjoining streams as seen from above |
Drumlin | Oval-shaped mound of unsorted glacial till |
Erratic | Large boulder dropped by a glacier |
Escarpment | Steep slope or cliff where resistant layers of rock overlie weaker layers |
Esker | Winding ridge of sand & gravel deposited by a steam confined to a tunnel under a glacier |
Finger Lakes | Lakes created in western New York State as the advancing ice deeply scoured former north-south river valleys |
Glacial Polish | Bedrock surface smoothed by the passage of a glacier |
Kame | Delta deposited by a stream at the end of a glacier |
Kettle | A depression that may be the result of the melting of a buried block of ice |
Kettle Lake | Lake formed when a block of glacial ice melts |
Landform | Unit of rock of uniform age or composition |
Landscape | General shape of a region on Earth's surface |
Moraine | Unsorted mound of sediment deposited directly by moving ice |
Mountain | Landscape region characterized by non-horizontal rock structure & great topographic relief landscape feature usually characterized by high elevation & steep slopes |
Outwash Plain | Layered deposits left by water from a glacier |
Plain | Landscape region characterized by horizontal rock structure & low topographic relief |
Plateau | Landscape region characterized by horizontal rock structure & high topographic relief (a plateau is usually a relatively flat or rolling uplands area deeply cut by stream valleys) |
Radical | Stream pattern in which streams radiate like spokes of a wheel down the sides of a central mountain such as a volcano |
Relief | Change in elevation from one place to another |
Topography | Shape of the land surface |
Trellis | Drainage pattern in which most of the streams occupy parallel valleys pattern usually develops on folded strata of rocks with differing resistance to erosion |