Weathering and Erosion
Deposition
occurs when agents of erosion drop the sediments they are carrying.
Chemical Weathering
occurs when chemicals react to dissolve the minerals or change them into different minerals
Mechanical Weathering
occurs when rocks are broken down by physical processes
Frost Action (Ice Wedging)
the force of freezing water which splits rocks apart. Type of mechanical weathering.
Weathering
the process that breaks down rocks and helps to form soil
Erosion
the process that moves sediments from one place to another
Abrasion
wearing away of rocks by wind or water. Type of mechanical weathering.
Plant Acids
Acids formed by the decay of plants and animals eat away rocks. Type of chemical weathering.
Sulfuric Acid (acid rain)
Acids from factories or volcanoes dissolve in rainwater and eat away at rocks and buildings. Type of chemical weathering.
Gravity
As rocks fall, they collide with each other and break apart. Type of mechanical weathering.
Carbonation
Carbonic acids dissolve rocks and form caves underground. Type of chemical weathering.
Oxidation
The chemical reaction of oxygen with other substances producing rust. Type of chemical weathering.
Hydrolysis
The chemical reaction of water with other substances. Type of chemical weathering.
Wetting & Drying
The constant swelling and shrinking caused by rain drying up which makes rocks crack. Type of mechanical weathering.
Joint Sheeting
The removal or addition of large masses of rock causes rocks to expand & crack. Type of mechanical weathering.
Organic activity
When roots grow or animals dig holes, rocks split apart. Type of mechanical weathering.