Paleomagnetic and radiocarbon-based chronologies of sediment cores MD99-2269 and MD99-2322, supplement to: Stoner, Joseph S; Jennings, Anne E; Kristjánsdóttir, Greta B; Dunhill, Gita; Andrews, John T; Hardardottir, Jorunn (2007): A paleomagnetic approach toward refining Holocene radiocarbon-based chronologies: Paleoceanographic records from the north Iceland (MD99-2269) and east Greenland (MD99-2322) margins. Paleoceanography, 22(1), PA1209
We report the intercalibration of paleomagnetic secular variation (PSV) and radiocarbon dates of two expanded postglacial sediment cores from geographically proximal, but oceanographically and sedimentologically contrasting settings. The objective is to improve relative correlation and chronology ov...
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ftdatacite:10.1594/pangaea.833556 2023-05-15T16:03:43+02:00 Paleomagnetic and radiocarbon-based chronologies of sediment cores MD99-2269 and MD99-2322, supplement to: Stoner, Joseph S; Jennings, Anne E; Kristjánsdóttir, Greta B; Dunhill, Gita; Andrews, John T; Hardardottir, Jorunn (2007): A paleomagnetic approach toward refining Holocene radiocarbon-based chronologies: Paleoceanographic records from the north Iceland (MD99-2269) and east Greenland (MD99-2322) margins. Paleoceanography, 22(1), PA1209 Stoner, Joseph S Jennings, Anne E Kristjánsdóttir, Greta B Dunhill, Gita Andrews, John T Hardardottir, Jorunn 2014 application/zip https://dx.doi.org/10.1594/pangaea.833556 https://doi.pangaea.de/10.1594/PANGAEA.833556 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/2006pa001285 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY article Supplementary Collection of Datasets Collection 2014 ftdatacite https://doi.org/10.1594/pangaea.833556 https://doi.org/10.1029/2006pa001285 2022-02-09T13:17:41Z We report the intercalibration of paleomagnetic secular variation (PSV) and radiocarbon dates of two expanded postglacial sediment cores from geographically proximal, but oceanographically and sedimentologically contrasting settings. The objective is to improve relative correlation and chronology over what can be achieved with either method alone. Core MD99-2269 was taken from the Húnaflóaáll Trough on the north Iceland shelf. Core MD99-2322 was collected from the Kangerlussuaq Trough on the east Greenland margin. Both cores are well dated, with 27 and 20 accelerator mass spectrometry 14C dates for cores 2269 and 2322, respectively. Paleomagnetic measurements made on u channel samples document a strong, stable, single-component magnetization. The temporal similarities of paleomagnetic inclination and declination records are shown using each core's independent calibrated radiocarbon age model. Comparison of the PSV records reveals that the relative correlation between the two cores could be further improved. Starting in the depth domain, tie points initially based on calibrated 14C dates are either adjusted or added to maximize PSV correlations. Radiocarbon dates from both cores are then combined on a common depth scale resulting from the PSV correlation. Support for the correlation comes from the consistent interweaving of dates, correct alignment of the Saksunarvatn tephra, and the improved correlation of paleoceanographic proxy data (percent carbonate). These results demonstrate that PSV correlation used in conjunction with 14C dates can improve relative correlation and also regional chronologies by allowing dates from various stratigraphic sequences to be combined into a single, higher dating density, age-to-depth model. Article in Journal/Newspaper East Greenland Greenland Iceland Kangerlussuaq DataCite Metadata Store (German National Library of Science and Technology) Greenland Kangerlussuaq ENVELOPE(-55.633,-55.633,72.633,72.633) Jennings ENVELOPE(72.556,72.556,-70.145,-70.145) Saksunarvatn ENVELOPE(-7.150,-7.150,62.233,62.233) Húnaflóaáll ENVELOPE(-20.667,-20.667,66.333,66.333) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
description |
We report the intercalibration of paleomagnetic secular variation (PSV) and radiocarbon dates of two expanded postglacial sediment cores from geographically proximal, but oceanographically and sedimentologically contrasting settings. The objective is to improve relative correlation and chronology over what can be achieved with either method alone. Core MD99-2269 was taken from the Húnaflóaáll Trough on the north Iceland shelf. Core MD99-2322 was collected from the Kangerlussuaq Trough on the east Greenland margin. Both cores are well dated, with 27 and 20 accelerator mass spectrometry 14C dates for cores 2269 and 2322, respectively. Paleomagnetic measurements made on u channel samples document a strong, stable, single-component magnetization. The temporal similarities of paleomagnetic inclination and declination records are shown using each core's independent calibrated radiocarbon age model. Comparison of the PSV records reveals that the relative correlation between the two cores could be further improved. Starting in the depth domain, tie points initially based on calibrated 14C dates are either adjusted or added to maximize PSV correlations. Radiocarbon dates from both cores are then combined on a common depth scale resulting from the PSV correlation. Support for the correlation comes from the consistent interweaving of dates, correct alignment of the Saksunarvatn tephra, and the improved correlation of paleoceanographic proxy data (percent carbonate). These results demonstrate that PSV correlation used in conjunction with 14C dates can improve relative correlation and also regional chronologies by allowing dates from various stratigraphic sequences to be combined into a single, higher dating density, age-to-depth model. |
format |
Article in Journal/Newspaper |
author |
Stoner, Joseph S Jennings, Anne E Kristjánsdóttir, Greta B Dunhill, Gita Andrews, John T Hardardottir, Jorunn |
spellingShingle |
Stoner, Joseph S Jennings, Anne E Kristjánsdóttir, Greta B Dunhill, Gita Andrews, John T Hardardottir, Jorunn Paleomagnetic and radiocarbon-based chronologies of sediment cores MD99-2269 and MD99-2322, supplement to: Stoner, Joseph S; Jennings, Anne E; Kristjánsdóttir, Greta B; Dunhill, Gita; Andrews, John T; Hardardottir, Jorunn (2007): A paleomagnetic approach toward refining Holocene radiocarbon-based chronologies: Paleoceanographic records from the north Iceland (MD99-2269) and east Greenland (MD99-2322) margins. Paleoceanography, 22(1), PA1209 |
author_facet |
Stoner, Joseph S Jennings, Anne E Kristjánsdóttir, Greta B Dunhill, Gita Andrews, John T Hardardottir, Jorunn |
author_sort |
Stoner, Joseph S |
title |
Paleomagnetic and radiocarbon-based chronologies of sediment cores MD99-2269 and MD99-2322, supplement to: Stoner, Joseph S; Jennings, Anne E; Kristjánsdóttir, Greta B; Dunhill, Gita; Andrews, John T; Hardardottir, Jorunn (2007): A paleomagnetic approach toward refining Holocene radiocarbon-based chronologies: Paleoceanographic records from the north Iceland (MD99-2269) and east Greenland (MD99-2322) margins. Paleoceanography, 22(1), PA1209 |
title_short |
Paleomagnetic and radiocarbon-based chronologies of sediment cores MD99-2269 and MD99-2322, supplement to: Stoner, Joseph S; Jennings, Anne E; Kristjánsdóttir, Greta B; Dunhill, Gita; Andrews, John T; Hardardottir, Jorunn (2007): A paleomagnetic approach toward refining Holocene radiocarbon-based chronologies: Paleoceanographic records from the north Iceland (MD99-2269) and east Greenland (MD99-2322) margins. Paleoceanography, 22(1), PA1209 |
title_full |
Paleomagnetic and radiocarbon-based chronologies of sediment cores MD99-2269 and MD99-2322, supplement to: Stoner, Joseph S; Jennings, Anne E; Kristjánsdóttir, Greta B; Dunhill, Gita; Andrews, John T; Hardardottir, Jorunn (2007): A paleomagnetic approach toward refining Holocene radiocarbon-based chronologies: Paleoceanographic records from the north Iceland (MD99-2269) and east Greenland (MD99-2322) margins. Paleoceanography, 22(1), PA1209 |
title_fullStr |
Paleomagnetic and radiocarbon-based chronologies of sediment cores MD99-2269 and MD99-2322, supplement to: Stoner, Joseph S; Jennings, Anne E; Kristjánsdóttir, Greta B; Dunhill, Gita; Andrews, John T; Hardardottir, Jorunn (2007): A paleomagnetic approach toward refining Holocene radiocarbon-based chronologies: Paleoceanographic records from the north Iceland (MD99-2269) and east Greenland (MD99-2322) margins. Paleoceanography, 22(1), PA1209 |
title_full_unstemmed |
Paleomagnetic and radiocarbon-based chronologies of sediment cores MD99-2269 and MD99-2322, supplement to: Stoner, Joseph S; Jennings, Anne E; Kristjánsdóttir, Greta B; Dunhill, Gita; Andrews, John T; Hardardottir, Jorunn (2007): A paleomagnetic approach toward refining Holocene radiocarbon-based chronologies: Paleoceanographic records from the north Iceland (MD99-2269) and east Greenland (MD99-2322) margins. Paleoceanography, 22(1), PA1209 |
title_sort |
paleomagnetic and radiocarbon-based chronologies of sediment cores md99-2269 and md99-2322, supplement to: stoner, joseph s; jennings, anne e; kristjánsdóttir, greta b; dunhill, gita; andrews, john t; hardardottir, jorunn (2007): a paleomagnetic approach toward refining holocene radiocarbon-based chronologies: paleoceanographic records from the north iceland (md99-2269) and east greenland (md99-2322) margins. paleoceanography, 22(1), pa1209 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2014 |
url |
https://dx.doi.org/10.1594/pangaea.833556 https://doi.pangaea.de/10.1594/PANGAEA.833556 |
long_lat |
ENVELOPE(-55.633,-55.633,72.633,72.633) ENVELOPE(72.556,72.556,-70.145,-70.145) ENVELOPE(-7.150,-7.150,62.233,62.233) ENVELOPE(-20.667,-20.667,66.333,66.333) |
geographic |
Greenland Kangerlussuaq Jennings Saksunarvatn Húnaflóaáll |
geographic_facet |
Greenland Kangerlussuaq Jennings Saksunarvatn Húnaflóaáll |
genre |
East Greenland Greenland Iceland Kangerlussuaq |
genre_facet |
East Greenland Greenland Iceland Kangerlussuaq |
op_relation |
https://dx.doi.org/10.1029/2006pa001285 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.833556 https://doi.org/10.1029/2006pa001285 |
_version_ |
1766399402489937920 |