@ARTICLE{Majka_Jarosław_Neoproterozoic_2012, author={Majka, Jarosław and Larionov, Alexander N. and Gee, David G. and Czerny, Jerzy and Pršek, Jaroslav}, number={No 1}, journal={Polish Polar Research}, pages={1-17}, howpublished={online}, year={2012}, publisher={Polish Academy of Sciences}, publisher={Committee on Polar Research}, abstract={Neoproterozoic ( c. 640 Ma) amphibolite facies metamorphism and deformation have been shown recently to have affected the Isbj ø rnhamna and Eimfjellet Complex of Wedel Jarlsberg Land in southwestern Spitsbergen. New SHRIMP zircon U−Pb and in situ electron microprobe monazite and uraninite U−Th−total Pb ages are presented here on a pegmatite occurring within the Isbj ø rnhamna metasedimentary rocks. Although the dated zircons are full of inclusions, have high−U contents and are metamict and hence have experienced notable Pb−loss, the new Cryogenian ages are consistent with the age of regional metamorphism of the host metasediments, providing additional evidence for a clear distinction of the Southwestern Province from the other parts of the Svalbard Caledonides.}, type={Artykuły / Articles}, title={Neoproterozoic pegmatite from Skoddefjellet, Wedel Jarlsberg Land, Spitsbergen: Additional evidence for c. 640 Ma tectonothermal event in the Caledonides of Svalbard}, URL={http://www.journals.pan.pl/Content/99511/PDF/10183_Volume33_Issue1_01_paper.pdf}, doi={10.2478/v10183−012−0003−6}, keywords={Arctic, Svalbard, zircon, monazite, uraninite, geochronology}, }