A preliminary geoelectrical model of the Karelian megablock of the Baltic shield

Details A preliminary geoelectrical model of the Karelian megablock of the Baltic shield A preliminary geoelectrical model of the Karelian megablock of the Baltic shield

Jul 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pepi...32..301k&link_type=abstract

Physics of the Earth and Planetary Interiors, Volume 32, Issue 4, p. 301-305.

Physics

10

Scientific paper

Three groups of electromagnetic data have been considered in order to construct a preliminary geoelectrical depth model of the old basement of the Baltic shield: (i) audiomagnetotelluric data in the period range 1/3700-1/8 s; (ii) magnetotelluric data in the period range 25-1000 s; and (iii) global magnetovariation-sounding data in the period range >6 h.
These data sets fit together on a common apparent-resistivity curve, indicating the existence of a unified geoelectrical model. This model does not support the existence of conducting crustal or asthenospheric layers.

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