Character of basal and intraformational unconformities in the Calypsostranda Group (late Palaeogene)

• Main Authors: Bellsund Spitsbergen, Krzysztof Birkenmajer
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Arctic; Bellsund; Calypsostranda; Skilvika; Spitsbergen
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.624.1200; http://www.polar.pan.pl/ppr27/ppr27-107.pdf

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 pro− vides evidence for its primary sedimentary character. The second one is an intraformational erosional disconformity/discontinuity expressed by rapid replacement of coal−bearing ter− restrial strata (Skilvika Formation) by shallow−marine strata (Renarddodden Formation). Key words: Arctic, Spitsbergen, late Palaeogene terrestrial and marine strata, basal and intraformational unconformities.