File:Brunhes Geomagnetism Western US.png
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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Source: U.S. Geological Survey Open-File Report 03-187, "Preliminary Paleomagnetic Results from the Coyote Creek Outdoor Classroom Drill Hole, Santa Clara Valley, California" by Edward A. Mankinen and Carl M. Wentworth. http://pubs.usgs.gov/of/2003/of03-187/of03-187.pdf
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