The Jurassic of Denmark and Greenland: Lower Jurassic (Pliensbachian) ammonites from Bornholm, Baltic Sea, Denmark
The Jurassic succession of the island of Bornholm in the Baltic Sea includes the Hettangian – lowermost Pliensbachian Rønne Formation, the Lower Pliensbachian Hasle Formation, the Upper Pliensbachian – (?)Lower Aalenian Sorthat Formation and the (?)Upper Aalenian – Bathonian Bagå Formation. Ammonite...
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Geological Survey of Denmark and Greenland
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ftdoajarticles:oai:doaj.org/article:22b46557f4cf401e915f90bb9787543f 2023-05-15T16:29:30+02:00 The Jurassic of Denmark and Greenland: Lower Jurassic (Pliensbachian) ammonites from Bornholm, Baltic Sea, Denmark Surlyk, Finn Donovan, Desmond T. 2003-10-01T00:00:00Z https://doaj.org/article/22b46557f4cf401e915f90bb9787543f EN eng Geological Survey of Denmark and Greenland http://www.geus.dk/publications/bull/nr1_p555-583.pdf https://doaj.org/toc/1604-8156 1604-8156 https://doaj.org/article/22b46557f4cf401e915f90bb9787543f Geological Survey of Denmark and Greenland Bulletin, Vol 01, Pp 555-583 (2003) Bornholm Baltic Sea Lower Jurassic ammonite fauna Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 article 2003 ftdoajarticles 2022-12-31T13:22:48Z The Jurassic succession of the island of Bornholm in the Baltic Sea includes the Hettangian – lowermost Pliensbachian Rønne Formation, the Lower Pliensbachian Hasle Formation, the Upper Pliensbachian – (?)Lower Aalenian Sorthat Formation and the (?)Upper Aalenian – Bathonian Bagå Formation. Ammonites are only known from the Hasle Formation, and all available ammonite specimens from this formation are described and figured. Material reported by previous authorshas been re-examined, together with previously undescribed specimens. Nine genera and eleven species are recognised. The ammonites show that the rocks from which they were collected fallinto the Lower Pliensbachian (Carixian) Substage. The lowermost subzone proved in the Hasle Formation is the basal Taylori Subzone of the Jamesoni Zone of the Northwest European Subboreal standard zonation, which marks a marine transgression over underlying marginal marine beds without ammonites belonging to the Rønne Formation. All subzones of the Jamesoni Zone are proved together with the Valdani Subzone of the Ibex Zone. The Upper Pliensbachian (Domerian)Substage, previously reported, is now thought to be unproved by ammonite evidence. The underlying and overlying Rønne and Sorthat Formations are dated by dinoflagellate cysts and terrestrial palynomorphs, and the ammonite occurrences provide important control points for palynostratigraphic dating of the succession. Article in Journal/Newspaper Greenland Geological Survey of Denmark and Greenland Bulletin Directory of Open Access Journals: DOAJ Articles Greenland |
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Directory of Open Access Journals: DOAJ Articles |
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language |
English |
topic |
Bornholm Baltic Sea Lower Jurassic ammonite fauna Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 |
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Bornholm Baltic Sea Lower Jurassic ammonite fauna Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 Surlyk, Finn Donovan, Desmond T. The Jurassic of Denmark and Greenland: Lower Jurassic (Pliensbachian) ammonites from Bornholm, Baltic Sea, Denmark |
topic_facet |
Bornholm Baltic Sea Lower Jurassic ammonite fauna Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 |
description |
The Jurassic succession of the island of Bornholm in the Baltic Sea includes the Hettangian – lowermost Pliensbachian Rønne Formation, the Lower Pliensbachian Hasle Formation, the Upper Pliensbachian – (?)Lower Aalenian Sorthat Formation and the (?)Upper Aalenian – Bathonian Bagå Formation. Ammonites are only known from the Hasle Formation, and all available ammonite specimens from this formation are described and figured. Material reported by previous authorshas been re-examined, together with previously undescribed specimens. Nine genera and eleven species are recognised. The ammonites show that the rocks from which they were collected fallinto the Lower Pliensbachian (Carixian) Substage. The lowermost subzone proved in the Hasle Formation is the basal Taylori Subzone of the Jamesoni Zone of the Northwest European Subboreal standard zonation, which marks a marine transgression over underlying marginal marine beds without ammonites belonging to the Rønne Formation. All subzones of the Jamesoni Zone are proved together with the Valdani Subzone of the Ibex Zone. The Upper Pliensbachian (Domerian)Substage, previously reported, is now thought to be unproved by ammonite evidence. The underlying and overlying Rønne and Sorthat Formations are dated by dinoflagellate cysts and terrestrial palynomorphs, and the ammonite occurrences provide important control points for palynostratigraphic dating of the succession. |
format |
Article in Journal/Newspaper |
author |
Surlyk, Finn Donovan, Desmond T. |
author_facet |
Surlyk, Finn Donovan, Desmond T. |
author_sort |
Surlyk, Finn |
title |
The Jurassic of Denmark and Greenland: Lower Jurassic (Pliensbachian) ammonites from Bornholm, Baltic Sea, Denmark |
title_short |
The Jurassic of Denmark and Greenland: Lower Jurassic (Pliensbachian) ammonites from Bornholm, Baltic Sea, Denmark |
title_full |
The Jurassic of Denmark and Greenland: Lower Jurassic (Pliensbachian) ammonites from Bornholm, Baltic Sea, Denmark |
title_fullStr |
The Jurassic of Denmark and Greenland: Lower Jurassic (Pliensbachian) ammonites from Bornholm, Baltic Sea, Denmark |
title_full_unstemmed |
The Jurassic of Denmark and Greenland: Lower Jurassic (Pliensbachian) ammonites from Bornholm, Baltic Sea, Denmark |
title_sort |
jurassic of denmark and greenland: lower jurassic (pliensbachian) ammonites from bornholm, baltic sea, denmark |
publisher |
Geological Survey of Denmark and Greenland |
publishDate |
2003 |
url |
https://doaj.org/article/22b46557f4cf401e915f90bb9787543f |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Geological Survey of Denmark and Greenland Bulletin |
genre_facet |
Greenland Geological Survey of Denmark and Greenland Bulletin |
op_source |
Geological Survey of Denmark and Greenland Bulletin, Vol 01, Pp 555-583 (2003) |
op_relation |
http://www.geus.dk/publications/bull/nr1_p555-583.pdf https://doaj.org/toc/1604-8156 1604-8156 https://doaj.org/article/22b46557f4cf401e915f90bb9787543f |
_version_ |
1766019209349824512 |