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Thread: Geomagnetic Reversal

  1. #1 Geomagnetic Reversal 
    Forum Freshman
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    Saw some documentary that regards Earth will reversing polarity and changing magnetic field within a period pattern.
    Basically they found some evidences abt tis frm stone or rock tat previously form from lava.

    So, how true ist abt this statement? Anybody have any recently findings abt tis evidences?


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  3. #2  
    exchemist
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    Quote Originally Posted by squallvalentine View Post
    Saw some documentary that regards Earth will reversing polarity and changing magnetic field within a period pattern.
    Basically they found some evidences abt tis frm stone or rock tat previously form from lava.

    So, how true ist abt this statement? Anybody have any recently findings abt tis evidences?
    This was firmly established many years ago. There are matching stripes of magnetic polarisation on either side of the mid-ocean ridges, showing the direction of the Earth's magnetic field at the time the lava from the spreading centres cooled. It is one of the key findings that supports the theory of continental drift and plate tectonics.


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