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Water erosion, mostly by streams and rivers that have a high gradient and discharge.
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How does release of pressure affect mechanical weathering?
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.
What chemical weathering process occurs when chemicals combine with water in a chemical reaction to change the physical properties of the rock?
Since igneous rocks form at high temperatures, and under pressure conditions ranging from one to several atmospheres. However, the conditions at the Earth's surface are somewhat different than the conditions at which most rocks and minerals form. Therefore, the materials are no longer at equilibrium when they are exposed to surface conditions. Under these conditions, there is a tendency for all ordered systems to seek lower levels of energy or order. This is all done through weathering. Weathering - the disintegration and decomposition of rock at or near the surface of the earth. It affects the rocks in place and no transport is involved. This distinguishes weathering from erosion.Mechanical/physical weathering - physical disintegration of a rock into smaller fragments, each with the same properties as the original. Occurs mainly by temperature and pressure changes.Chemical weathering - process by which the internal structure of a mineral is altered by the addition or removal of elements. Change in phase (mineral type) and composition are due to the action of chemical agents. Chemical weathering is dependent on available surface for reaction temperature and presence of chemically active fluids. Smaller particle sizes weather by chemical means more rapidly than large particles due to an increase of surface area. Look at the diagram below and you will see that as the particles get smaller, the total surface area available for chemical weathering increases.
What are signs a physical change has occured?
change in the form -in general can be indicated for the physical form. The substance may dissolve or its stage may change. If the change is physical, it should be reversable.
Are weathered rocks only components needed to form soil?
Yes, weathering slowly does break down rocks and makes them pebbles and then soil, but it takes years.
A change in matter from one form to another is?
A change in the physical state of matter is a physical change.
What is the most common form of physical weathering at high elevations?
Abrasion of rocks by wind
What is the most common form of weathering?
rain.
Which type of physical weathering occurs when water seeps into into cracks of rocks and freezes?
It is a form of weathering known as frost wedging.
What is it called when you alter the form of rocks by physical or chemical processs?
This process is called weathering.
How does climate effect weathering?
Mechanical weathering refers to weathering that causes physical erosion of exposed rock without changing its chemical composition. Climate helps promote or prevent things like frost and wind that create this form of weathering.
How climate effects weathering?
Mechanical weathering refers to weathering that causes physical erosion of exposed rock without changing its chemical composition. Climate helps promote or prevent things like frost and wind that create this form of weathering.
What is the common form of weathering at high latitude and high altitude locations?
Frost action
How does climate effect mechanical weathering?
Mechanical weathering refers to weathering that causes physical erosion of exposed rock without changing its chemical composition. Climate helps promote or prevent things like frost and wind that create this form of weathering.
How did new Yorks finger lake form?
movement of glaciers
What is the most common form of weathering at high latitude and high altitude location?
Frost action
Are stalactites a form chemical weathering?
Stalactites are a result of the processes of chemical weathering, not a form of chemical weathering.
What kind of rocks are caused by weathering?
The most common rock that experiences weathering, is sedimentary rocks. Metamorphic and Igneous are unlikey to.
