Weathering, Erosion, & Deposition

By: Spencer Petrick

Weathering

Weathering is the process in which the rock material is broken down by chemical or physical means. There are two types of weathering chemical and physical.chemical is when any of the various weathering processes that cause exposed rock to undergo chemical decomposition, changing the chemical and mineralogical composition of the rock. The types of chemical weathering are carbonation, oxidation , and corbonic acid. An example of chemical weathering is rust. Physical weathering is the breakdown of rocks into smaller rocks.Agents of physical weathering are ice, wind, water, gravity, and living things.An example of physical weathering is the repeated process of ice wedging.

Erosion

The five main agents of erosion are wind, water, ice, gravity, and living things. Wind would pick up sediment and deposit it somewhere else. Water would carry sediment in fast running water and deposit it somewhere else forming a delta. Ice would be a glacier moving big rocks and depositing them somewhere else. Gravity would make rocks fall down a cliff and depositing them at the foot of the cliff. Living things like you and me would get small rocks stuck on them eventually depositing them where the animal left it.

Weathering, erosion, and depostion

Deposition

The main agents of deposition are ice, water, wind, gravity, and living things. Ice would pluck out grass by water freezing over it them moving as the ice melts the grass is laid down. Water can form delta's and fans. Wind can move large amounts of soil and sand eventually depositing when the wind dies down. Gravity would make rocks fall down a cliff them depositing the rocks at the foot of the cliff. Living things would get stuff stuck on them then the debris would fall off depositing it somewhere.