title: The paleomagnetic field from equatorial deep-sea sediments: axial symmetry and polarity asymmetry.
abstract: Paleomagnetic data from 89 equatorial deep-sea sediment cores indicate that the configuration of the time-averaged geomagnetic field depends strongly on polarity state but that it remains within 1 degree of axial symmery throughout the Pliocene and Pleistocene (last 5 million years). The relative magnitude of the nondipole field was greater by almost a factor of 2 during reverse than during normal polarity intervals. These results thus support earlier suggestions that there may be a standing (nonreversing) component of the geomagnetic dynamo.
authors.forename: D A
authors.initials: DA
authors.lastname: Schneider
authors.forename: D V
authors.initials: DV
authors.lastname: Kent