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Electromagnetic images of the deep structure of the Trans-European Suture Zone beneath Polish Pomerania
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2008 (English)In: Geophysical Research Letters, ISSN 0094-8276, Vol. 35, no 15, L15307- p.Article in journal (Refereed) Published
Abstract [en]

A large-scale international electromagnetic experiment has been carried out in northwest Poland and northeast Germany. The main goal was to study the deep conductivity structure across the Trans-European Suture Zone, which is the most prominent tectonic structure of Phanerozoic age in Europe. Electromagnetic measurements were carried out mainly along seismic profiles P2, LT-7, and LT-2 crossing the suture zone and running in the northeastern direction. Strike and dimensionality analyses indicate that a geoelectrical strike of N60 degrees W common to both profiles LT-7 and P2 can be estimated. This strike direction was used to project and rotate all transfer functions and both profiles were subjected to 2D inversion using three different approaches. The results show the presence of highly conductive Cenozoic-Mesozoic sedimentary cover reaching depths up to 3 km. A significant conductivity anomaly beneath the central part of the TESZ, called the Central Polish Anticlinorium, has been well resolved at midcrustal depths. The upper mantle of the Precambrian East European Craton is more resistive than, adjacent to the West, the younger Paleozoic Platform.

Place, publisher, year, edition, pages
2008. Vol. 35, no 15, L15307- p.
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:uu:diva-109128DOI: 10.1029/2008GL034610ISI: 000258509800005OAI: oai:DiVA.org:uu-109128DiVA: diva2:248933
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2009-10-09Bibliographically approved

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