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Late Pleistocene geomagnetic field recorded in sediments from the depocenter of Pluvial Lake Chewaucan, Lake County, OR
The main topic of this thesis focuses on geomagnetic excursions. The exact definition of an excursion is problematic and over time a number of conventions have been used. The traditional excursion is defined by VGPs that travel more than 40° to 45° away from the average magnetic north pole for that time period. A more recent and far more lax definition of an excursion has been proposed labeling any magnetic field behavior other than “normal” field behavior as an excursion.
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