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Detailed Reference Information |
Lu Lin, J., Verosub, K.L. and Roberts, A.P. (1994). Decay of the virtual dipole moment during polarity transitions and geomagnetic excursions. Geophysical Research Letters 21: doi: 10.1029/94GL00397. issn: 0094-8276. |
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We have analyzed paleointensity data from five polarity transitions and geomagnetic excursions recorded by lava flows. We find a significant correlation between the logarithm of the virtual dipole moment and the angle between the virtual geomagnetic pole and the Earth's rotation axis. This correlation implies that any physical model for geomagnetic field behavior during transitions and excursions must address the question of how changes in direction are linked to changes in intensity. In addition, large changes in paleointensity may occur even when the virtual geomagnetic pole is still at high latitude so the concept of transitional direction must be redefined. ¿ American Geophysical Union 1994 |
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Abstract |
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Keywords
Geomagnetism and Paleomagnetism, Dynamo theories, Geomagnetism and Paleomagnetism, Reversals (process, time scale, magnetostratigraphy), Geomagnetism and Paleomagnetism, Time variations, secular and long term |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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