Temporal changes in Holocene δ 18 O records from the northwest and central North Iceland Shelf
Abstract The region of north Iceland is highly sensitive climatically owing to its location with respect to atmospheric and oceanographic fronts. In this study we present total carbonate and δ 18 O records of benthic and planktic Foraminifera from nine sediment cores from the North Iceland Shelf. Th...
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crwiley:10.1002/jqs.841 2024-06-02T08:08:32+00:00 Temporal changes in Holocene δ 18 O records from the northwest and central North Iceland Shelf Castañeda, Isla S. Smith, L. Micaela Kristjánsdóttir, Gréta Björk Andrews, John T. 2004 http://dx.doi.org/10.1002/jqs.841 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.841 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.841 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 19, issue 4, page 321-334 ISSN 0267-8179 1099-1417 journal-article 2004 crwiley https://doi.org/10.1002/jqs.841 2024-05-03T11:07:36Z Abstract The region of north Iceland is highly sensitive climatically owing to its location with respect to atmospheric and oceanographic fronts. In this study we present total carbonate and δ 18 O records of benthic and planktic Foraminifera from nine sediment cores from the North Iceland Shelf. The results of this work indicate that the deglaciation of the Vestfirdir Peninsula was completed by 10 200 cal. yr BP. The 8200 cal. yr BP cold event is present only as a minor isotopic event, and seems not to have had much of a cooling effect on the bottom waters of the northwest Iceland shelf. The Holocene maximum warmth, attributed to a stronger North Icelandic Irminger Current, occurred between ca. 7800 and 6200 cal. yr BP. Over the past 4500 cal. yr BP a general cooling trend has occurred on the North Iceland Shelf, and superimposed on this overall cooling trend are a number of oscillations between periods when relatively warmer and cooler waters occupied the shelf. Relatively cooler waters were present at 4200–4000 cal. yr BP, 3200–2900 cal. yr BP, 2500–2350 cal. yr BP and 600–200 cal. yr BP, whereas relatively warmer waters were present on the shelf at 3750–3450 cal. yr BP, 2800–2600 cal. yr BP and 1700–1000 cal. yr BP. Copyright © 2004 John Wiley & Sons, Ltd. Article in Journal/Newspaper Iceland North Icelandic Irminger Current Wiley Online Library Journal of Quaternary Science 19 4 321 334 |
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English |
description |
Abstract The region of north Iceland is highly sensitive climatically owing to its location with respect to atmospheric and oceanographic fronts. In this study we present total carbonate and δ 18 O records of benthic and planktic Foraminifera from nine sediment cores from the North Iceland Shelf. The results of this work indicate that the deglaciation of the Vestfirdir Peninsula was completed by 10 200 cal. yr BP. The 8200 cal. yr BP cold event is present only as a minor isotopic event, and seems not to have had much of a cooling effect on the bottom waters of the northwest Iceland shelf. The Holocene maximum warmth, attributed to a stronger North Icelandic Irminger Current, occurred between ca. 7800 and 6200 cal. yr BP. Over the past 4500 cal. yr BP a general cooling trend has occurred on the North Iceland Shelf, and superimposed on this overall cooling trend are a number of oscillations between periods when relatively warmer and cooler waters occupied the shelf. Relatively cooler waters were present at 4200–4000 cal. yr BP, 3200–2900 cal. yr BP, 2500–2350 cal. yr BP and 600–200 cal. yr BP, whereas relatively warmer waters were present on the shelf at 3750–3450 cal. yr BP, 2800–2600 cal. yr BP and 1700–1000 cal. yr BP. Copyright © 2004 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Castañeda, Isla S. Smith, L. Micaela Kristjánsdóttir, Gréta Björk Andrews, John T. |
spellingShingle |
Castañeda, Isla S. Smith, L. Micaela Kristjánsdóttir, Gréta Björk Andrews, John T. Temporal changes in Holocene δ 18 O records from the northwest and central North Iceland Shelf |
author_facet |
Castañeda, Isla S. Smith, L. Micaela Kristjánsdóttir, Gréta Björk Andrews, John T. |
author_sort |
Castañeda, Isla S. |
title |
Temporal changes in Holocene δ 18 O records from the northwest and central North Iceland Shelf |
title_short |
Temporal changes in Holocene δ 18 O records from the northwest and central North Iceland Shelf |
title_full |
Temporal changes in Holocene δ 18 O records from the northwest and central North Iceland Shelf |
title_fullStr |
Temporal changes in Holocene δ 18 O records from the northwest and central North Iceland Shelf |
title_full_unstemmed |
Temporal changes in Holocene δ 18 O records from the northwest and central North Iceland Shelf |
title_sort |
temporal changes in holocene δ 18 o records from the northwest and central north iceland shelf |
publisher |
Wiley |
publishDate |
2004 |
url |
http://dx.doi.org/10.1002/jqs.841 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.841 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.841 |
genre |
Iceland North Icelandic Irminger Current |
genre_facet |
Iceland North Icelandic Irminger Current |
op_source |
Journal of Quaternary Science volume 19, issue 4, page 321-334 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.841 |
container_title |
Journal of Quaternary Science |
container_volume |
19 |
container_issue |
4 |
container_start_page |
321 |
op_container_end_page |
334 |
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1800753825398652928 |