The University of Southampton
University of Southampton Institutional Repository

Decay of the virtual dipole moment during polarity transitions and geomagnetic excursions Decay of the virtual dipole moment during polarity transitions and geomagnetic excursions

Decay of the virtual dipole moment during polarity transitions and geomagnetic excursions Decay of the virtual dipole moment during polarity transitions and geomagnetic excursions
Decay of the virtual dipole moment during polarity transitions and geomagnetic excursions Decay of the virtual dipole moment during polarity transitions and geomagnetic excursions
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.

0094-8276
525-528
Lin, Jin Lu
7f1dd892-ace7-45b9-9285-e36d78cefb3e
Verosub, Kenneth L.
396d0f22-35c1-42b9-8581-96fbb6df597d
Roberts, A.P.
4497b436-ef02-428d-a46e-65a22094ba52
Lin, Jin Lu
7f1dd892-ace7-45b9-9285-e36d78cefb3e
Verosub, Kenneth L.
396d0f22-35c1-42b9-8581-96fbb6df597d
Roberts, A.P.
4497b436-ef02-428d-a46e-65a22094ba52

Lin, Jin Lu, Verosub, Kenneth L. and Roberts, A.P. (1994) Decay of the virtual dipole moment during polarity transitions and geomagnetic excursions Decay of the virtual dipole moment during polarity transitions and geomagnetic excursions. Geophysical Research Letters, 21 (7), 525-528.

Record type: Article

Abstract

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.

This record has no associated files available for download.

More information

Published date: 1994
Organisations: Ocean and Earth Science

Identifiers

Local EPrints ID: 66145
URI: http://eprints.soton.ac.uk/id/eprint/66145
ISSN: 0094-8276
PURE UUID: 21bdd77f-74e3-4b6d-9bf9-5ef05113e837

Catalogue record

Date deposited: 05 May 2009
Last modified: 10 Dec 2021 16:06

Export record

Contributors

Author: Jin Lu Lin
Author: Kenneth L. Verosub
Author: A.P. Roberts

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×