Marine Plio-Pleistocene of Iceland and problems of Its Correlation
Abstract The marine Pliocene-Pleistocene sequence of Iceland contains four main assemblages of mollusks: (1) Venerupis rhomboides et al. , (2) Serripes groenlandicus et al. , (3) Portlandia arctica et al. , and (4) recent species. Analysis of the stratigraphic distribution of 100 species shows that...
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Cambridge University Press (CUP)
1981
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crcambridgeupr:10.1016/0033-5894(81)90111-3 2024-06-09T07:46:59+00:00 Marine Plio-Pleistocene of Iceland and problems of Its Correlation Gladenkov, Y.B. 1981 http://dx.doi.org/10.1016/0033-5894(81)90111-3 http://api.elsevier.com/content/article/PII:0033589481901113?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589481901113?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400015921 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 15, issue 1, page 18-23 ISSN 0033-5894 1096-0287 journal-article 1981 crcambridgeupr https://doi.org/10.1016/0033-5894(81)90111-3 2024-05-15T13:06:45Z Abstract The marine Pliocene-Pleistocene sequence of Iceland contains four main assemblages of mollusks: (1) Venerupis rhomboides et al. , (2) Serripes groenlandicus et al. , (3) Portlandia arctica et al. , and (4) recent species. Analysis of the stratigraphic distribution of 100 species shows that the percentage of extinct species in the assemblages decreases from 40% in the oldest to 4–8% in the youngest. There is also a change from south boreal affinities in the oldest assemblage to north boreal in the youngest. The molluskan assemblages of Iceland can be correlated with Pliocene-Pleistocene assemblages of England and North Europe: (1) Coralline Crag, (2) Red Crag—lower part of the Icenian strata, (3) upper part of the Icenian-Cromerian strata. The upper boundaries of the Pliocene and Eopleistocene are defined by paleomagnetic data and radiological dating. The upper boundary of the Pliocene presumably should be established in the basalts lying between the Tjörnes and the Breidavik deposits by changes between the second and third mollusk assemblages and by the Gilsa paleomagnetic event. Article in Journal/Newspaper Iceland Serripes groenlandicus Cambridge University Press Red Crag ENVELOPE(-127.570,-127.570,57.140,57.140) Tjörnes ENVELOPE(-17.087,-17.087,66.152,66.152) Quaternary Research 15 1 18 23 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
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English |
description |
Abstract The marine Pliocene-Pleistocene sequence of Iceland contains four main assemblages of mollusks: (1) Venerupis rhomboides et al. , (2) Serripes groenlandicus et al. , (3) Portlandia arctica et al. , and (4) recent species. Analysis of the stratigraphic distribution of 100 species shows that the percentage of extinct species in the assemblages decreases from 40% in the oldest to 4–8% in the youngest. There is also a change from south boreal affinities in the oldest assemblage to north boreal in the youngest. The molluskan assemblages of Iceland can be correlated with Pliocene-Pleistocene assemblages of England and North Europe: (1) Coralline Crag, (2) Red Crag—lower part of the Icenian strata, (3) upper part of the Icenian-Cromerian strata. The upper boundaries of the Pliocene and Eopleistocene are defined by paleomagnetic data and radiological dating. The upper boundary of the Pliocene presumably should be established in the basalts lying between the Tjörnes and the Breidavik deposits by changes between the second and third mollusk assemblages and by the Gilsa paleomagnetic event. |
format |
Article in Journal/Newspaper |
author |
Gladenkov, Y.B. |
spellingShingle |
Gladenkov, Y.B. Marine Plio-Pleistocene of Iceland and problems of Its Correlation |
author_facet |
Gladenkov, Y.B. |
author_sort |
Gladenkov, Y.B. |
title |
Marine Plio-Pleistocene of Iceland and problems of Its Correlation |
title_short |
Marine Plio-Pleistocene of Iceland and problems of Its Correlation |
title_full |
Marine Plio-Pleistocene of Iceland and problems of Its Correlation |
title_fullStr |
Marine Plio-Pleistocene of Iceland and problems of Its Correlation |
title_full_unstemmed |
Marine Plio-Pleistocene of Iceland and problems of Its Correlation |
title_sort |
marine plio-pleistocene of iceland and problems of its correlation |
publisher |
Cambridge University Press (CUP) |
publishDate |
1981 |
url |
http://dx.doi.org/10.1016/0033-5894(81)90111-3 http://api.elsevier.com/content/article/PII:0033589481901113?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589481901113?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400015921 |
long_lat |
ENVELOPE(-127.570,-127.570,57.140,57.140) ENVELOPE(-17.087,-17.087,66.152,66.152) |
geographic |
Red Crag Tjörnes |
geographic_facet |
Red Crag Tjörnes |
genre |
Iceland Serripes groenlandicus |
genre_facet |
Iceland Serripes groenlandicus |
op_source |
Quaternary Research volume 15, issue 1, page 18-23 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/0033-5894(81)90111-3 |
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Quaternary Research |
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15 |
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1 |
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18 |
op_container_end_page |
23 |
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1801377046432055296 |