Paleomagnetic field intensity derived from meteorite magnetization |
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| Authors: | Takesi Nagata Naoji Sugiura |
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| Affiliation: | 1. National Institute of Polar Research, Tokyo, Japan;2. Geophysical Institute, University of Tokyo, Tokyo, Japan |
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| Abstract: | The paleomagnetic field intensity is estimated with the aid of the Koenigsberger-Thellier method for four ordinary chondrites and one carbonaceous chondrite by assuming that the stable NRM component of these meteorites is attributable to the TRM acquired in a low-temperature range (lower than about 400°C) during their extremely-slow cooling process. The results are summarized in Table IV, where the paleomagnetic field intensity ranges from 0.10 to 0.97 Oe.Possible effects of the extremely-slow cooling rate of meteorites and the secondary TRM acquisition of the surface fusion crust upon the original NRM of the meteorite interior are discussed. |
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