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Vocabulary for Land Forms

Vocabulary of different Land Forms

Kathy Barringer

on 7 January 2011

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Transcript of Vocabulary for Land Forms

Vocabulary for Landforms Bay a body of water forming an indentation of the shoreline, larger than a cove but smaller than a gulf. Canyon a deep valley with steep sides, often with a stream flowing through it. River a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. Crevasse a fissure, or deep cleft, in glacial ice, the earth's surface, etc. River Basin the area of land drained by a river and its branches. Plains An extensive, relatively level area of land. Plateau a land area having a relatively level surface considerably raised above adjoining land on at least one side, and often cut by deep canyons. Fault a place where sections of the crust of the Earth move relative to each other. Desert a region so arid because of little rainfall that it supports only sparse and widely spaced vegetation or no vegetation at all: Gulf a portion of an ocean or sea partly enclosed by land. Delta a nearly flat plain of alluvial deposit between diverging branches of the mouth of a river, often, though not necessarily, triangular Tributary a stream that flows to a larger stream or other body of water. Glacier an extended mass of ice formed from snow falling and accumulating over the years and moving very slowly Volcano a vent in the earth's crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals. Valley an elongated depression between uplands, hills, or mountains, esp. one following the course of a stream. Dunes A hill or ridge of wind-blown sand Sea/Ocean the salt waters that cover the greater part of the earth's surface. Island a tract of land completely surrounded by water, and not large enough to be called a continent. Reef a ridge of rocks or sand, often of coral debris, at or near the surface of the water. Meander formed when the moving water in a stream erodes the outer banks and widens its valley. Floodplains land that is covered by water when a river over flows Topographic Map shows the height or elevation of land Contour Lines Countour lines are labeled with the elevation. Where lines are closer together, the surface is steep. Where the lines are far apart, the elevation does not change as much. Oxbow Lake U-shaped body of water formed when a wide meander from the main stem of a river is cut off to create a lake. Sea Arch Cavern a natural geological formation where a rock arch forms, with an opening underneath, due to erosion caves form in rock that is soluble, such as limestone, but can also form in other rocks, including chalk, dolomite, marble, salt, and gypsum. The largest and most abundant solutional caves are located in limestone. Limestone dissolves under the action of rainwater and groundwater charged with H2CO3 (carbonic acid) and naturally occurring organic acids. Limestone caves are often adorned with calcium carbonate formations produced through slow precipitation. These include flowstones, stalactites, stalagmites, helictites, soda straws and columns.
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