TY - JOUR N2 - Nine samples of basic (dolerite, gabbro) intrusions collected at Bellsund, South Spitsbergen, have been K−Ar dated. Three dates, between 87.8 and 102.9 Ma, obtained from dolerite sills which intrude Carboniferous and Permian deposits in Van Keulenfjorden point to a Cretaceous age of intrusive activity (Diabasodden Suite). The K−Ar dates obtained from dolerite and gabbro which intrude Upper Proterozoic metasedimentary terrane of Chamber− lindalen form two groups: the dates between 97.1 and 178.6 Ma point to a Mesozoic age of the intrusions (Diabasodden Suite); the dates from a tectonized gabbroid (280.9–402.0 Ma) might point to a Late Palaeozoic age of the intrusion. No K−Ar dates which would indicate a Proterozoic age of the basic intrusions were obtained L1 - http://www.czasopisma.pan.pl/Content/108309/PDF-MASTER/article-p3.pdf L2 - http://www.czasopisma.pan.pl/Content/108309 PY - 2010 IS - No 1 EP - 16 KW - Arctic KW - Spitsbergen KW - dolerite intrusions KW - Mesozoic KW - Late Palaeozoic KW - K−Ardating A1 - Birkenmajer, Krzysztof A1 - Pécskay, Zoltán A1 - Krajewski, Krzysztof P. A1 - Lorenc, Marek W. PB - Polish Academy of Sciences PB - Committee on Polar Research DA - 2010 T1 - K−Ar dating of basic intrusions at Bellsund, Spitsbergen, Svalbard SP - 3 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/108309 T2 - Polish Polar Research ER -