It is mechanical as pressure is very much a mechanical element.
Chemical Weathering
Mechanical
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
Mechanical (physical) weathering is the breakdown of rock into smaller particles due to such factors as freezing and thawing, release of pressure, water absorption, salt crystal formation, landmass uplift, expansion and contraction from the sun or fire, plant root growth, actions of animals, abrasion, or other means that do not directly affect the rock's chemistry.
There are 5 ways Mechanical Weathering acts: 1. Freezing and Thawing 2. Release of pressure 3. Plant growth 4. Actions of Animals 5. Abrasion
Freezing and Thawing, Release of pressure. Growth of plants, actions of animals & 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.
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.
Chemical Weathering
Mechanical
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
to be honest in mechanical weathering plants grow their roots in the cracks of rocks. In chemical weathering plants grow their roots in the cracks of rocks, and the roots release acid that weathers away the rock.
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.
Mechanical weathering breaks rock into pieces by freezing and thawing,release of pressure, growth of plants, action of animals, and abrasion
ice wedging pressure release plant root growth and abrasion
ice wedging/frost wedging, pressure release, plant root growth, abrasion.
Mechanical (physical) weathering is the breakdown of rock into smaller particles due to such factors as freezing and thawing, release of pressure, water absorption, salt crystal formation, landmass uplift, expansion and contraction from the sun or fire, plant root growth, actions of animals, abrasion, or other means that do not directly affect the rock's chemistry.