Anomalía de la inclinación en registros magnetoestratigráficos¿un artefacto del campo reciente?

  1. Josep M. Parés 1
  2. Rob Van der Voo 2
  1. 1 Centro Nacional de Investigación sobre la Evolución Humana
    info

    Centro Nacional de Investigación sobre la Evolución Humana

    Burgos, España

    ROR https://ror.org/01nse6g27

  2. 2 University of Michigan–Ann Arbor
    info

    University of Michigan–Ann Arbor

    Ann Arbor, Estados Unidos

    ROR https://ror.org/00jmfr291

Journal:
Geotemas (Madrid)

ISSN: 1576-5172

Year of publication: 2012

Issue Title: VIII Congreso Geológico de España, Oviedo, 17-19 de julio, 2012.

Issue: 13

Pages: 1164-1167

Type: Article

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More publications in: Geotemas (Madrid)

Abstract

Paleomagnetic records show very often that the directions of normal and reverse polarity are not quite antipodal, as one would expect for an axial geocentric dipole model. Specifically, in magnetostratigraphic studies of Tertiary sediments, which include large data sets of paleomagnetic directions of both polarities, it is commonly observed that reverse polarity inclinations are shallower than those of normal polarity. Such an inclination disparity has important implications for both paleomagnetism and paleogeographic reconstructions. We investigate the conventional explanation for such asymmetry, which involves the presence of a persistent, partially unremoved present day field magnetization in the studied rocks.

Data source: Dialnet