Abstrakt
Six sequences are identified in the Upper Jurassic and lowermost Cretaceous Flyvbjerg-, Børglum- and Frederikshavn Formations of the Danish Subbasin. Sequence boundaries and maximum flooding surfaces are interpreted on the basis of log analysis, biostratigraphy and lithology of core samples. Parasequences and parasequence sets are mainly recognized in shallow marine sediments. The gamma ray and SP logs of the sequences have an overall cyclic character, indicating the presence of upward fining deposits overlain by upward coarsening deposits. A blocky log pattern or an upward decreasing trend lowermost in the sequence represents sanddominated sediments, and it is interpreted as lowstand deposits caused by forced regression. The overlying interval with upward fining deposits comprise transgressive deposits. The interval between maximum flooding surface and the upper sequence boundary has an upward coarsening trend, and it probably includes the highstand deposits.
Originalsprog | Engelsk |
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Titel | Proceedings of the 2nd Symposium on Marine Geology |
Undertitel | Geology of the North Sea and Skagerrak, Aarhus University, 1993 |
Redaktører | Olaf Michelsen |
Forlag | Danmarks Geologiske Undersøgelse |
Sider | 125-136 |
Antal sider | 11 |
DOI | |
Status | Udgivet - 1995 |
Udgivet eksternt | Ja |
Begivenhed | 2nd Symposium on Marine Geology: Geology of the North Sea and Skagerrak - Aarhus Universitet, Aarhus, Danmark Varighed: 7 okt. 1993 → 8 okt. 1993 Konferencens nummer: 2 |
Publikationsserier
Navn | Danmarks Geologiske Undersøgelse, Serie C |
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Forlag | Geological Survey of Denmark and Greenland |
Vol/bind | 12 |
Andet
Andet | 2nd Symposium on Marine Geology |
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Land/Område | Danmark |
By | Aarhus |
Periode | 7/10/93 → 8/10/93 |
Programområde
- Programområde 3: Energiressourcer