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Thread: A very serious problem.

  1. #1 A very serious problem. 
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    How the erode of river cause the riverbank?


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    Administrator KALSTER's Avatar
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    Build a ramp with moist soil and empty a glass of water onto the top.


    Disclaimer: I do not declare myself to be an expert on ANY subject. If I state something as fact that is obviously wrong, please don't hesitate to correct me. I welcome such corrections in an attempt to be as truthful and accurate as possible.

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    Universal Mind John Galt's Avatar
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    Kalster has given the perfect practical answer. Here is the theoretical one.

    You answered your question, in your question. Erosion. Flowing water erodes the soil below it, cutting a path, or river bed in the ground.
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    James, if this is not a homework question, can you expand a bit?

    Are you wanting to understand the formation of particular types of riverbanks?

    .......



    Ophiolite, I'd be tempted to include deposition as well as erosion to cover riverbank formation ...
    Nature abhors perfection; cats abhor a vacuum.

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    well of course as Ophiolite said erosion is the main and the only cause!
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    Universal Mind John Galt's Avatar
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    Quote Originally Posted by kakarot
    well of course as Ophiolite said erosion is the main and the only cause!
    On reflection I was only about half right. River banks are also produced by deposition - think of the levees on the Mississippi.
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    Quote Originally Posted by Ophiolite
    Quote Originally Posted by kakarot
    well of course as Ophiolite said erosion is the main and the only cause!
    On reflection I was only about half right. River banks are also produced by deposition - think of the levees on the Mississippi.
    and braided streams ... and meanders ... even deltas ...

    generally upstream - higher gradient, fast flow; erosion dominates
    generally midstream - low gradient, flow varies across stream; erosion and deposition both occur
    generally downstream - near zero gradient, slow flow; deposition dominates
    Nature abhors perfection; cats abhor a vacuum.

    "I don't know; I'm making it up as I go ..." Dr H Jones (Jr).
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