A geomorphic system has internal and external variables. The internal
variables are related to endogenous processes and external variables are related to
exogenous process. Endogenous processes have their origin below the surface of earth
and exogenous processes take place on the surface of earth. The main endogenous
forms are neotectonic and volcanic forms whereas the main exogenous forms are
denudational, karsts, fluvial, glacial, coastal, aeolian, anthropogenic and various
organic forms (Subramanian)99. Exogenic processes mainly involve denudation which
results in the removal of material and leads to a reduction in elevation and relief of a
land form (Summerfield, 1991)100. Geomorphology is primarily concerned with
exogenous processes as they play a major role in shaping of the earth’s surface but at
the same time the internal forces are also necessary to be considered so that the origin
of a particular landform can be better studied. These internal forces cause the land to
rise and as they do so they are eventually subjected to the external agents such as the
effect of temperature, air, water, ice, gravity and other natural as well as artificial
agents that brings about weathering of the rock. They are no longer in equilibrium with
the environment under which they were formed and thus start to decompose and a
completely different landform is evolved. Thus in a given environment the composition
of rocks will decide how they will decompose and which form they will take (Leopold
et al. 1995)45 and (Anderson and Anderson, 2010)3.
Endogenous Forces
Exogenous Forces
Landforms of the Earth
Landforms of the Earth 1
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Source Link:
Geomorphology:a brief account
variables are related to endogenous processes and external variables are related to
exogenous process. Endogenous processes have their origin below the surface of earth
and exogenous processes take place on the surface of earth. The main endogenous
forms are neotectonic and volcanic forms whereas the main exogenous forms are
denudational, karsts, fluvial, glacial, coastal, aeolian, anthropogenic and various
organic forms (Subramanian)99. Exogenic processes mainly involve denudation which
results in the removal of material and leads to a reduction in elevation and relief of a
land form (Summerfield, 1991)100. Geomorphology is primarily concerned with
exogenous processes as they play a major role in shaping of the earth’s surface but at
the same time the internal forces are also necessary to be considered so that the origin
of a particular landform can be better studied. These internal forces cause the land to
rise and as they do so they are eventually subjected to the external agents such as the
effect of temperature, air, water, ice, gravity and other natural as well as artificial
agents that brings about weathering of the rock. They are no longer in equilibrium with
the environment under which they were formed and thus start to decompose and a
completely different landform is evolved. Thus in a given environment the composition
of rocks will decide how they will decompose and which form they will take (Leopold
et al. 1995)45 and (Anderson and Anderson, 2010)3.
Endogenous Forces
Exogenous Forces
Landforms of the Earth
Landforms of the Earth 1
________________________________________________________________
Source Link:
Geomorphology:a brief account
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