Direction and relative paleointensity of the geomagnetic field in the middle and later pleistocene from paleomagnetic data of the Roxolany section (Ukraine)

Authors: Pilipenko, O.; Sharonova, Z.; Trubikhin, V.

Source: Izvestiya, Physics of the Solid Earth, Volume 43, Number 5, May 2007 , pp. 430-441(12)

Publisher: MAIK Nauka/Interperiodica

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Abstract:

The lower part of the Roxolany section (Ukraine) is studied, and paleomagnetic and petromagnetic characteristics of rock samples are obtained for the time interval 300-75 ka. Detailed curves of variations in angular parameters of the geomagnetic field are constructed in the entire time interval, and curves of variations in the relative paleointensity are obtained for the interval 300-180 ka. Using the values of the angular parameters and the deviations of the virtual geomagnetic pole from the position of the stationary field, anomalous directions compatible with the Jamaica excursion are identified in the intervals 250-249 and 221-220 ka. The geomagnetic field evolution is studied by methods of wavelet analysis, and the field generation process is shown to vary in the interval 300-180 ka.

Keywords: 91.25.Ng

Document Type: Research article

DOI: http://dx.doi.org/10.1134/S1069351307050084

Publication date: 2007-05-01