ISSN:
1365-246X
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Geosciences
Notes:
The investigated material comprises rocks of the Palaeozoic ophiolitic assemblage exposed around the Sowie Góry Mountains Massif in the Sudetes in the form of the three units: ślza, Zαbkowice and Nowa Ruda. The radiometric age (U-Pb) of the rocks, stated as 420 ± 20 Ma, places them in the Silurian. A palaeomagnetic study reveals the presence of four groups of palaeomagnetic poles. One of these is derived from an isolated component representing Permian overprinting. The second remanence component fits with the Silurian results from Baltica and may therefore be regarded as being of Silurian age. According to this interpretation, the ophiolitic complex would not have been involved in tectonic action after Silurian times. On the other hand, this component does not agree with the results of the neighbouring Bohemian Massif but is consistent with Late Carboniferous data of the European Variscans. In this case the other two components should be interpreted as Early- to Mid-Carboniferous overprints. This interpretation implies important strike-slip movements. In order to exclude one of these hypotheses, more data are still needed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-246X.1995.tb07018.x
