@ARTICLE{Birkenmajer_Krzysztof_Character_2006,
 author={Birkenmajer, Krzysztof},
 volume={vol. 27},
 number={No 2},
 journal={Polish Polar Research},
 pages={107-118},
 howpublished={online},
 year={2006},
 publisher={Polish Academy of Sciences},
 publisher={Committee on Polar Research},
 abstract={There are two important unconformities in the Calypsostranda Group (late Palaeogene) at Bellsund, Spitsbergen. The first one is the basal angular unconformity of the Skilvika Formation against folded and planated Proterozoic metasediments: the author provides evidence for its primary sedimentary character. The second one is an intraformational erosional disconformity/discontinuity expressed by rapid replacement of coal-bearing terrestrial strata (Skilvika Formation) by shallow-marine strata (Renarddodden Formation).},
 type={Article},
 title={Character of basal and intraformational unconformities in the Calypsostranda Group (late Palaeogene), Bellsund, Spitsbergen},
 URL={http://journals.pan.pl/Content/110610/PDF-MASTER/ppr27-107.pdf},
 keywords={Arctic, Spitsbergen, late Palaeogene terrestrial and marine strata, basal and intraformational unconformities},
}