A late Quaternary geomagnetic secular variation record from Lake Waiau, Hawaii, and the question of the Pacific nondipole low
Date of Original Version
A continuous paleomagnetic record for the last 13 000 yrs was obtained from the sediments of Lake Waiau, located near the summit of Mauna Kea Volcano of the island of Hawaii. The spectrum obtained from spectral analysis shows major inclination peaks at periodicities of approximately 3600 and 7900 yrs and major declination peaks at periodicities of approximately 1100, 2000, 3300 and 7800 yrs. The results support the hypothesis that an anomalously low secular variation is a characteristic feature of the central Pacific. Furthermore, this geomagnetic behaviour persists on time scales of 104 yrs. Regional anomalies in temperature, topography or electrical conductivity at the core-mantle boundary are inferred to cause the low SV. -from Authors
Publication Title, e.g., Journal
Journal of Geophysical Research
Peng, Lei, and J. W. King. "A late Quaternary geomagnetic secular variation record from Lake Waiau, Hawaii, and the question of the Pacific nondipole low." Journal of Geophysical Research 97, B4 (1992). doi: 10.1029/91jb03074.