Earth:Summit accordance
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300px|thumb|The highest of hills in this picture show fairly similar heights making up a summit accordance. Aerial photograph from the Altai region of Russia. A summit accordance (sometimes also known by the German loan word gipfelflur) exists when hills and mountaintops, and eventually also plateaux, have such a disposition that they form a geometric plane that may be either horizontal or tilted. Summit accordances can be the vestiges of former continuous erosion surfaces that were uplifted and eroded.[1] Other proposed explanations include:[2]
- the possibility that erosion becomes more effective at height, tearing down mountains that stand out
- that isostasy regulates the height of individual mountain masses meaning that small mountains might be uplifted and large mountains dragged down
- that landscape dissection by uniformly spaced streams eventually reach a state in which summits attain similar heights
- that summit accordance is derivative of structural planes exposed by erosion
See also
References
- ↑ Lidmar-Bergström, Karna. "Toppkonstans" (in sv). Cydonia Development. http://www.ne.se/uppslagsverk/encyklopedi/l%C3%A5ng/toppkonstans.
- ↑ Beckinsale, Robert P.; Chorley, Richard J. (2003). "Chapter Seven: American Polycyclic Geomorphology". The History of the Study of Landforms. Three. Taylor & Francis e-Library. pp. 235–236.
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