First terrestrial geomagnetic record of the Norwegian-Greenland Sea excursion in the Kaupo ow, Koolau volcano, Oahu, Hawaii: Insights from 40Ar/39Ar, NRM and absolute paleointensity determinations
First terrestrial geomagnetic record of the Norwegian-Greenland Sea excursion in the Kaupo ow, Koolau volcano, Oahu, Hawaii: Insights from 40Ar/39Ar, NRM and absolute paleointensity determinations