The
idea to look for reversal records on Kauai came to Rob one
idyllic day at Kalalau beach on the Napali coast (photo
on Geodynamo page). Scott Bogue liked the idea, and found
records of two reversals during his Ph.D. research in thick
sections of 4-5 million year old lava flows along the coast
and in the interior. These yielded information about how
both the magnetic field direction and intensity changed
in the course of polarity reversal. Since then we've carried
out similar work on Maui and Oahu.
Scott
Bogue at the end of a long hot day on Kauai.