Environmental geomorphology

12-6-16M vbm 7ram1437H
1 INTRODUCTION TO ENVIRONMENTAL GEOMORPHOLOGY
1.1 Definition of Geomorphology
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#Geomorphology, from the Greek words yfj jiopcpfi X6joq, is a science which aims to study and interpret landforms and especially the causes that create and modify them
#Geomorphology’s main area of study is the contact surface between the lithosphere, on the one hand, and the atmosphere and/or the hydrosphere, on the other hand, that is, the interface between two different physical entities: a solid medium and a liquid and/or aeriform one. It is along this surface that geomorphological processes take place
#Two types of forces are exerted along this interface: endogenetic and exogenetic. The former (internal) originate in the substance of which the Earth is made and produce changes in the lithosphere. They are diastrophic phenomena giving rise to crustal deformation, volcanic activity and the slow transfer of the inner heat of the earth to the surface. Exogenetic (external) forces originate in the solar system and modify the surface of the lithosphere. They are principally the force of gravity and solar energy, which determine vectorial movements, convection and tangential movements of portions of solid, liquid or aeriform masses on the above-mentioned interface

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