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Geology Kitchen #6 - Weathering

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Key Questions

  • Answer:

    The breaking down of rocks without changing their chemical makeup.


    There are two types of weathering:

    Physical Weathering (also called Mechanical Weathering) is caused by things like wind or water. These break down the rock without changing its chemical structure. With physical weathering, rocks tend to crumble as they erode.

    Chemical Weathering is caused by acids and dissolves rocks.

    Read more here.

  • Answer:

    The erosion of a rock by chemical reactions within the rock. Some examples are hydrolysis, carbonation, and oxidation.


    Hydrolysis: the hydration (with H2O) of minerals within a rock to change the chemical structure.
    Carbonation: the mixture of water with carbon dioxide to make carbonic acid.
    Oxidation: the reaction of a rock/mineral when it comes in contact with oxygen.

  • Both are geological processes that influence the earth but weathering occurs in place and is when rocks/minerals break down due to wind, water, or other natural processes whereas erosion is when wind, water, and gravity move rocks and minerals to other locations. In both instances, the solid material breaks down, but when that breakdown is due to weathering, the materials remain in place whereas in erosion they are displaced.

    Here's a really great website I found that explains the differences well: weathering vs. erosion .


  • Double-check the answer
    BEE answered · 1 year ago

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Weathering and Formation of Soil