Terrain level

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Stratification level that is also offset at a fault ( Lookout Mountain , USA)
Hall of Fame and Bavaria on the western edge of the Theresienwiese , laid out using a stepped area that runs through half of Munich .

In geomorphology , geology and cartography, a clear change in the inclination of the slope is referred to as a terrain step , terrain edge or terrain step (English fault scarp ) when its edges are approximately linear.

The dimensions can be between a few meters and several kilometers. The longest terrain levels include those of the southern German layered landscape (Franconian and Swabian Alb), which include deep geological faults and rift systems with large differences in altitude , which are often still tectonically active.

In English, a distinction is also made between the fault scarp and the fault-line scarp . The fault scarp traces the actual fault, whereby the fault-line scarp coincides with the fault, but has already been topographically shaped by erosion.

causes

Natural causes of terrain levels can include: a. be:

Also glaciers with their typical erosion forms of Übertiefungen and thresholds are the cause of steep steps, even at Glacier crashes, high alpine Karen or Talschultern over longitudinal valleys.

Narrow but elongated steps are often related to sedimentation boundaries or fault lines, for example the Wagram along the Danube in Lower Austria or parts of the Diendorf fault in the Bohemian Massif. Typical phenomena of some mountain edges are steep terrain at the base of the slope, which are often cut through by short valleys. Examples of this are the Reculée near Arbois (French Jura) and the steps near Ruppoldingen (Switzerland).

See also

Individual evidence

  1. Glacial erosion form ( Memento of the original from May 2, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / quaternary-science.publiss.net