Publication Date:
1996-08-09
Description:
The statistical characteristics of the local magnetic field of Earth during paleosecular variation, excursions, and reversals are described on the basis of a database that gathers the cleaned mean direction and average remanent intensity of 2741 lava flows that have erupted over the last 20 million years. A model consisting of a normally distributed axial dipole component plus an independent isotropic set of vectors with a Maxwellian distribution that simulates secular variation fits the range of geomagnetic fluctuations, in terms of both direction and intensity. This result suggests that the magnitude of secular variation vectors is independent of the magnitude of Earth's axial dipole moment and that the amplitude of secular variation is unchanged during reversals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Camps -- Prevot -- New York, N.Y. -- Science. 1996 Aug 9;273(5276):776-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire de Tectonique et Geophysique, Unite Associee au CNRS case 060, Universite de Montpellier 2, Place Eugene Bataillon, 34095 Montpellier Cedex 5, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8670413" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
Permalink