Global Correlation of the 223 ka Pringle Falls Event

New 40Ar/39Ar ages link records of anomalous geomagnetic field behavior from western North America and New Zealand, and suggest that a reversal event occurred at 223 ± 4 ka (± 1σ). Virtual geomagnetic poles from the Pringle Falls event recorded in both hemispheres lie on a common transition path, suggesting that the geomagnetic field during this interval was dominated by a dipolar component. The Pringle Falls event therefore may be a reverse polarity subchron within the Brunhes Normal Chron.