Everything Totally Explained


Ask & we'll explain, totally!
Landform
Totally Explained


  NEW! All the latest news in the worlds of computer gaming, entertainment, the environment,  
finance, health, politics, science, stocks & shares, technology and much, much, more.  


View this entry using RSS

Everything about Landform totally explained

A landform comprises a geomorphological unit, and is largely defined by its surface form and location in the landscape, as part of the terrain, and as such, is typically an element of topography. Landforms are categorised by features such as elevation, slope, orientation, stratification, rock exposure, and soil type. They include berms, mounds, hills, cliffs, valleys, rivers and numerous other elements. Oceans and continents exemplify the highest-order landforms. Landform elements are parts of a high-order landforms that can be further identified, such as hill-tops, shoulders and backslopes.
   Some generic landform elements are: pits, peaks, channels, ridges, passes, pools, plains; these can be often extracted from a digital elevation model using some automated techniques where the data (various kinds) has been gathered by modern satellites and stereoscopic aerial surveillance cameras. Until recently, compiling the data found in such data sets required time consuming and expensive techniques of "Boots on the ground" at many man-hours. Terrain (or relief) is the third or vertical dimension of land surface. When relief is described underwater, the term bathymetry is used. Topography is a further synonym, and is often illustrated in the form of a contour map.
   Elementary landforms (segments, facets, relief units) are the smallest homogeneous divisions of the land surface, at the given scale/resolution. These are areas with relatively homogenous morphometric properties, bounded by lines of discontinuity. A plateau or a hill can be observed at various scales ranging from few hundred meters to hundreds of kilometers. Hence, the spatial distribution of landforms is often scale-dependent as is the case for soils and geological strata.
   A number of factors, ranging from plate tectonics to erosion and deposition, can generate and affect landforms. Biological factors can also influence landforms— for example, note the role of vegetation in the development of dune systems and salt marshes, and the work of corals and algae in the formation of coral reefs.
   Landforms don't include man-made features, such as canals, ports and many harbors; and geographic features, such as deserts, forests, grasslands, and impact craters.
   Many of the terms are not restricted to refer to features of the planet Earth, and can be used to describe surface features of other planets and similar objects in the Universe.

List of landforms

Landforms produced by erosion and weathering usually occur in coastal or fluvial environments, and many appear under those headings. Some other erosion landforms that don't fall into those categories include:
  • canyon
  • cave
  • cuesta
  • dune (an eolian landform not restricted to coastal environments)
  • erg (an eolian landform not restricted to coastal environments)
  • gulch
  • gully
  • hogback
  • lavaka
  • limestone pavement
  • rock formations
  • tea table

  • ait
  • anabranch
  • arroyo
  • bar
  • bayou
  • braided channel
  • Carolina Bay
  • basin
  • beach
  • cave
  • cliff
  • endorheic basin
  • exhumed river channel
  • foreland basin
  • ice dam
  • island
  • lacustrine plain
  • lake
  • levee
  • marsh
  • meander
  • oasis
  • oxbow lake
  • peneplain
  • pond
  • proglacial lake
  • sedimentary basin
  • pool
  • riffle
  • river
  • spring
  • stream
  • stream terrace
  • swamp
  • valley and vale
  • waterfall
  • watershed

  • arête
  • cirque
  • crevasse
  • corrie or cwm
  • dirt cone
  • drumlin
  • drumlin field
  • esker
  • fjord
  • U-shaped valley
  • glacial horn
  • glacier
  • glacier cave
  • hanging valley
  • inselberg
  • kame
  • kame delta
  • kettle
  • moraine
  • moulin (geology)
  • mountain & mountain range
  • nunatak
  • outwash fan and outwash plain
  • pingo
  • rift valley
  • side valley
  • stream terrace
  • summit
  • tunnel valley
  • valley

  • alas
  • bluff
  • butte
  • cliff
  • cuesta
  • dale
  • dell
  • escarpment (scarp)
  • glen
  • graben
  • gully
  • hill
  • horst
  • knoll
  • mesa
  • mountain
  • plain
  • plateau
  • ravine
  • ridge
  • rock shelter
  • scree
  • strath
  • & terracettes
  • vale
  • valley
  • valley shoulder

  • caldera
  • cinder cone
  • volcanic craters, but not impact craters
  • geyser
  • lava dome
  • lava flow & lava plain
  • maar
  • mid-ocean ridge
  • oceanic trench
  • pit crater
  • tuya
  • vent
  • volcanic island
  • volcano, shield volcano, mud volcano & composite volcano (or stratovolcano)

    Deposition landform

    Landforms produced by deposition of load or sediment (usually coastal or fluvial).
       

    Further Information

    Get more info on 'Landform'.


    External Link Exchanges

    Do you know how hard it is to get a link from a large encyclopaedia? Well we're different and will prove it. To get a link from us just add the following HTML to your site on a relevant page:

      <a href="http://landform.totallyexplained.com">Landform Totally Explained</a>

    Then simply click through this link from your web page. Our crawlers will verify your link, extract the title of your web page and instantly add a link back to it. If you like you can remove the words Totally Explained and embed the link in article text.
       As long as your link remains in place, we'll keep our link to you right here. Please play fair - our crawlers are watching. Your site must be closely related to this one's topic. Any kind of spamming, dubious practises or removing the link will result in your link from us being dropped and, potentially, your whole site being banned.



  • Copyright © 2007-8 totallyexplained.com | Licensed under the GNU Free Documentation License | Site Map
    This article contains text from the Wikipedia article Landform (History) and is released under the GFDL | RSS Version