CintalitaStoriellP CintalitaStoriellP
  • 03-11-2016
  • Biology
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how do rocks record changes in Earth's magnetic field

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SemolinaIsAmazing
SemolinaIsAmazing SemolinaIsAmazing
  • 08-11-2016
When magnetic materials are erupted in a molten magma, the magnetic materials align with the magnetic field and then cool in that direction.  It has been shown that the magnetic field reverses periodically and systematically, as determined with this method.
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