Magnetotelluric and deep geomagnetic induction data in the Bohemian Massif

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V. Cerv
J. Pek
O. Praus
A. Zaja
A. Manzella

Abstract

Manifestations of the increased tectonic activity (seismic activity, remnants of Tertiary volcanism and riftogenesis) in the Bohemian Massif are bound to geologically extremely complicated regions with a system of discordant structures and a mosaic of fault zones. The presented results concern the deep geoelectrical features of the tectonic transition between the Saxothuringian and Moldanubian tectonoblocks on the territory of West Bohemia, in close vicinity to the German deep drilling experiment KTB (Kontinentale Tiefbohrung der BRD). Three first-order tectonic lines demarcate the region under study í the Litomerice deep fault to the north, the West Bohemian deep fault zone to the east, and the Central Bohemian fault to the south. As a whole, the region involved is characterized by a regionally increased seismic activity with the most active zone just beyond the northern end-point of the profile investigated. The contribution can be considered an example of possible interpretation of MT/MV/AMT data in geologically extremely complicated conditions with evidently discordant structures affecting the geoelectrical data.

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1.
Cerv V, Pek J, Praus O, Zaja A, Manzella A. Magnetotelluric and deep geomagnetic induction data in the Bohemian Massif. Ann. Geophys. [Internet]. 1997Nov.25 [cited 2021Jun.24];40(2). Available from: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3921
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