Relief (geology)

from Wikipedia, the free encyclopedia

For further meanings of the term see relief (disambiguation)

Relief of the Schaumberg near Tholey

Under Relief ( fr. For "the Highlighted") refers to the geology and geography , the surface shape of the earth, d. H. the shape of the terrain . It arises from the effect of internal (endogenous) and external (exogenous) forces on the earth.

Endogenous forces

Forces that act from the interior of the earth (internal forces) : According to the theory of plate tectonics, the earth's crust is composed of a number of larger and smaller plates that change their position due to magma flows (convection currents) and are responsible for mountain formation , volcanism and earthquakes . Where plates meet, large mountains of folds and deep sea channels arise . Through compensatory movements, individual parts of the mountain are raised up in blocks to form clumps. Other parts, in turn, sink. This creates trenches and basins.

Exogenous powers

Forces that act on the surface of the earth from the outside (external forces): The rock formations created by endogenous forces are steadily degraded ( weathering ), removed ( erosion ) and deposited ( sedimentation ) by the exogenous forces . External forces include water , wind , ice or living beings, especially plants. Humans, too, have now become a relief-forming factor by performing large-scale terrain modeling , influencing erosion or reclaiming land .

Large landscapes - relief forms

They are the result of endogenous forces. The crust parts that protrude above the water surface are subject to the influences of exogenous forces.

Web links

Commons : Landscapes  - collection of images, videos, and audio files
Wiktionary: Relief  - explanations of meanings, word origins, synonyms, translations