Very rapid geomagnetic field change recorded by the partial remagnetization of a lava flow

@article{Bogue2010VeryRG,
  title={Very rapid geomagnetic field change recorded by the partial remagnetization of a lava flow},
  author={S. Bogue and J. Glen},
  journal={Geophysical Research Letters},
  year={2010},
  volume={37}
}
  • S. Bogue, J. Glen
  • Published 2010
  • Geology
  • Geophysical Research Letters
  • [1] A new paleomagnetic result from a lava flow with a distinctive, two-part remanence reinforces the controversial hypothesis that geomagnetic change during a polarity reversal can be much faster than normal. The 3.9-m-thick lava (“Flow 20”) is exposed in the Sheep Creek Range (north central Nevada) and was erupted during a reverse-to-normal (R-N) geomagnetic polarity switch at 15.6 Ma. Flow 20 began to acquire a primary thermoremanence while the field was pointing east and down but was soon… CONTINUE READING

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