Secular variation of the geomagnetic field over the past 4000 years recorded in the lavas and pyroclastics of the Northern Group of Kamchatka volcanoes: New data |
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| Authors: | A V Latyshev D O Kushlevich V V Ponomareva M M Pevzner I V Fedyukin |
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| Institution: | 1.Faculty of Geology,Moscow State University,Moscow,Russia;2.Schmidt Institute of Physics of the Earth,Russian Academy of Sciences,Moscow,Russia;3.Institute of Volcanology and Seismology, Far Eastern Branch,Russian Academy of Sciences,Petropavlovsk-Kamchatskii,Russia;4.Geological Institute,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | New paleomagnetic determinations satisfying the up-to-date methodical and instrumental standards of paleomagnetic studies are obtained from the lava flows and volcanic ash of the Northern Group of Kamchatka volcanoes. In the past 4000 years, 12 stratigraphic levels with tephrostratigraphic ages are explored. The obtained directions of the geomagnetic field fill a gap in the data on the secular variation for northeastern Asia and can be used for developing global models. Besides, a promising outlook for the use of the variations of the geomagnetic field for the regional correlation of volcanic events is demonstrated. |
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