Thursday, August 30, 2012

Peltier Diagram *AS*

Peltier Diagrams


Physical Weathering

      Frost shattering is important in a climate where temperatures fluctuate at around 0oC but if a climate is too cold, or too warm, or too dry, or too wet (covered by vegetation) it will not operate.

Chemical Weathering
       
This increases as temperature and rainfall totals increase. The rate of chemical weathering (around about) doubles (Increase by about 2 1/2 times) with every 100C temperature increase.
       Recent theories suggest that in humid tropical areas, direct removal by solution may be a major factor in the lowering of landscape, due to the continuous flow of water through the soil.
       Chemical weathering is strong in warm moist climates e.g. rainforests.

Weathering Regions

·      Peltier constructed this diagram as an attempt to predict weathering at a place in the world by the mean annual rainfall and mean annual temperature. Physical and chemical weathering operates together at the same time and at the same place, but usually one process is more significant than the other. 

10 comments:

  1. It is a software to create automaticaly Peltier Diagrams?

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  2. What locations are affected most by biological weathering?

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    Replies
    1. Normally areas with much vegetation as there ae more organisms to weather the rocks

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    2. areas with dense vegetation cover for humus and high temperature to increase the rate of decomposition as well moisture hence that region can be the humid tropics or sub humid tropics

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  3. overpopulated areas are usually affected by biological weathering because of lack of habitats and also mining activities ,borehole drilling,road constructions do cause biological weathering

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  4. HW can l explain the regions affected by physical and chemical weathering

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  5. U didn't have main ideas of Peltier

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