Erosion and Deposition Assignment

Erosion and deposition
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Erosion and deposition
Erosion is described as the geographical process by which materials like sediments, soil, rocks,
fragments and regolith are removed and transported by wind, water or ice. Erosion is responsible
for removal of materials and sediments from areas that were once covered by ice, carries
sediments downslopes and is also responsible of shaping lakes shorelines and coastal lines
(Welivitiya, Willgoose, & Hancock 2019).Erosion can be physical where the rocks change their
physical properties like shape and texture without changing the chemical composition. Chemical
erosion or weathering occurs when rocks and other geographical structures decay and breaks
down through a chemical process which can be a man- made activity or a natural process when
the water is flowing on the rock surface ( Roth 1999). .Erosion can be caused by water in form of
floods, rain, rivers and ocean when they carry away sediments, soil and sand gradually or ice
movement. Erosion is influenced by topography, climate, vegetation, tectonic activity and human
activities.
Water erosion causes the formation of sea stacks when erosion causes isolated column rocks
detach from mainland. Sea caves are formed when sea waves cuts massive holes in weak
coastline rocks. Ice erosion forms horns which can be described as peaks with a pyramid shape
and v-shaped or u-shaped valleys or depressions which are left behind after ice melts away.
Wind erosion on the other hand forms ripples which are sand waves that are always on the move
and appear and disappear in various locations at different times. Sand dunes forms when wind
leaves behind sand masses in form of a hill especially in desert areas when the sand is obstructed
by a objects like vegetation.
Deposition is the process by which the eroded materials are laid down after transportation by
wind, ice or water. The transportation of these sediments depends largely on the balance of