Evidence for an increase in cosmogenic 10Be during a geomagnetic reversal

@article{Raisbeck1985EvidenceFA,
  title={Evidence for an increase in cosmogenic 10Be during a geomagnetic reversal},
  author={G. Raisbeck and F. Yiou and D. Bourl{\`e}s and D. Kent},
  journal={Nature},
  year={1985},
  volume={315},
  pages={315-317}
}
Reversals in the geomagnetic field, which occur every few hundred thousand years, represent a dramatic change in the Earth's environment. Although there is no satisfactory theory for such reversals, it is generally accepted that the dipole field intensity decreases to <20% of its ‘normal’ value for a few thousand years during the change in direction1. Because the galactic and solar cosmic rays which impinge on the Earth's atmosphere are charged, a significant fraction (about half) of them are… Expand

Figures from this paper

Time variations in geomagnetic intensity
Deciphering records of geomagnetic reversals
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