Chemical Weathering
Mechanical
It is mechanical as pressure is very much a mechanical element.
Physical weathering is: frost, crystallization, exfoliation,, biological and pressure release. Chemcal weathering: anything with chemicals in it like carbonation, hydrolysis, solution, oxidation and hydration.
they both shape the earths surface and so in that way it shapes rocks. Mechanical weathering has release of pressure freezing and thawing and so on and so on
Chemical Weathering
onion-skin weathering
Mechanical
It is mechanical as pressure is very much a mechanical element.
There are two main types of weathering: mechanical (also called 'physical') and chemical. Pressure release is a form of mechanical weathering. Pressure release usually occurs when rock that has been deeply buried, rises toward the surface due to the erosion of the mass of rock above it. Pressure release causes fractures and exfoliation in the depressurizing rock body. These fractures in the rock make it more susceptible to, and accelerate, other modes of mechanical weathering attack, such as freeze/thaw hydraulics and plant root growth.
Physical weathering is: frost, crystallization, exfoliation,, biological and pressure release. Chemcal weathering: anything with chemicals in it like carbonation, hydrolysis, solution, oxidation and hydration.
ice wedging pressure release plant root growth and abrasion
In mechanical weathering, rocks are broken down into smaller pieces without changing their composition. Mechanical weathering is caused by freezing and thawing, release of pressure, plant growth, action of animals, and abrasion.
Pressure on them is released, which can cause pressure-release mechanical weathering. Exposure of an uplifted rock to the surface will fully expose the rock to the effects of mechanical and chemical weathering--basically a rock rot.
Freezing and Thawing, Release of pressure. Growth of plants, actions of animals & Abrasion.
Some types are thermal stress, frost wedging, abrasion, pressure fractures (pressure release), hydraulic action, and salt crystal expansion.
they both shape the earths surface and so in that way it shapes rocks. Mechanical weathering has release of pressure freezing and thawing and so on and so on