Image:Brunhes geomagnetism western US.png

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Approximate times of some of the most commonly reported geomagnetic excursions of the Brunhes Normal Polarity Chron.

  • Highlighted excursions are those most likely to be found in the western U.S.
  • Possible correlations of these to a sketch of the relative paleointensity curve of Guyodo and Valet (1999) are suggested.
  • VADM = virtual axial dipole moment.
  • Vertical dashed line is the critical value of intensity below which Guyodo and Valet (1999) consider several directional excursions to have occurred.


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This image is a work of a United States Geological Survey employee, taken or made during the course of the person's official duties. As a work of the United States Government, the image is in the public domain. For more information, see the USGS copyright policy.

Source: U.S. Geological Survey Open-File Report 03-187 http://geopubs.wr.usgs.gov/open-file/of03-187/

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  • (del) (cur) 12:36, 10 August 2005 . . Nova77 (Talk | contribs) . . 863×1074 (121,376 bytes) (Approximate times of some of the most commonly reported geomagnetic excursions of the Brunhes Normal Polarity Chron. * Highlighted excursions are those most likely to be found in the western U.S. * Possible correlations of these to a sketch of)
  • (del) (rev) 07:33, 14 March 2005 . . SEWilco (Talk | contribs) . . 440×540 (18,904 bytes) ( {{PD-USGov-Interior-USGS}} Source: U.S. Geological Survey Open-File Report 03-187 http://geopubs.wr.usgs.gov/open-file/of03-187/)

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