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Geomagnetic paleointensity determinations from radiocarbon-dated lava flows on the island of Hawaii provide an estimate of broad trends in paleointensity for Holocene time and offer a glimpse of intensity variations near the end of the last glacial period. When the data from Hawaii are compared with others worldwide, the intensity of the gemagnetic field seems to have been reduced from the Holocene average by about Jt, percent between 45,000 and 10,000 years ago. A long-term reduction of this magnitude is compatible with reported increases in the production rate of cosmogonic nuclides during the same interval.
Additional Publication Details
Latest pleistocene and holocene geomagnetic paleointensity on Hawaii