Marine calibration points derived from sediment core PS2644-5 (Table 1)
By correlating the climate records and radiocarbon ages of the planktonic foraminifera N. pachyderma(s) of deep-sea core PS2644 from the Iceland Sea with the annual-layer chronology of the GISP2 ice core, we obtained 80 marine 14C calibration points for the interval 11.4-53.3 ka cal BP. Between 27 a...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.134363 2023-05-15T16:00:41+02:00 Marine calibration points derived from sediment core PS2644-5 (Table 1) Voelker, Antje H L Grootes, Pieter Meiert Nadeau, Marie-Josée Sarnthein, Michael LATITUDE: 67.866660 * LONGITUDE: -21.765000 * DATE/TIME START: 1994-09-19T07:20:00 * DATE/TIME END: 1994-09-19T07:20:00 * MINIMUM DEPTH, sediment/rock: 0.16 m * MAXIMUM DEPTH, sediment/rock: 6.59 m 2000-02-26 text/tab-separated-values, 702 data points https://doi.pangaea.de/10.1594/PANGAEA.134363 https://doi.org/10.1594/PANGAEA.134363 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.134363 https://doi.org/10.1594/PANGAEA.134363 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Voelker, Antje H L; Grootes, Pieter Meiert; Nadeau, Marie-Josée; Sarnthein, Michael (2000): Radiocarbon Levels in the Iceland Sea from 25–53 kyr and their Link to the Earth's Magnetic Field Intensity. Radiocarbon, 42(3), 437-452, https://doi.org/10.1017/S0033822200030368 Age 14C AMS dated error to older error to younger dated standard deviation difference ARK-X/2 Calendar age Carbon-14 Denmark Strait Depth composite sediment/rock GIK/IfG Gravity corer (Kiel type) Institute for Geosciences Christian Albrechts University Kiel Intercore correlation Polarstern PS2644-5 PS31 PS31/160-5 Sample optional label/labor no SL Dataset 2000 ftpangaea https://doi.org/10.1594/PANGAEA.134363 https://doi.org/10.1017/S0033822200030368 2023-01-20T07:46:52Z By correlating the climate records and radiocarbon ages of the planktonic foraminifera N. pachyderma(s) of deep-sea core PS2644 from the Iceland Sea with the annual-layer chronology of the GISP2 ice core, we obtained 80 marine 14C calibration points for the interval 11.4-53.3 ka cal BP. Between 27 and 54 ka cal BP the continuous record of 14C/cal age differences reveals three intervals of highly increased 14C concentrations coincident with low values of paleomagnetic field intensity, two of which are attributed to the geomagnetic Mono Lake and Laschamp excursions (33.5-34.5 ka cal BP with maximum 550 per mil marine Delta 14C, and 40.3-41.7 ka cal BP with maximum 1215 per mil marine Delta 14C, respectively). A third maximum (marine Delta 14C: 755 per mil) is observed around 38 ka cal BP and attributed to the geomagnetic intensity minimum following the Laschamp excursion. During all three events the Delta 14C values increase rapidly with maximum values occurring at the end of the respective geomagnetic intensity minimum. During the Mono Lake Event, however, our Delta 14C values seem to underestimate the atmospheric level, if compared to the 36Cl flux measured in the GRIP ice core (Wagner et al. 2000, doi:10.1016/S0012-821X(00)00196-5) and other records. As this excursion coincides with a meltwater event in core PS2644, the underestimation is probably caused by an increased planktonic reservoir age. The same effect also occurs from 38.5 to 40 ka cal BP when the meltwater lid of Heinrich Event 4 affected the planktonic record. Dataset Denmark Strait ice core Iceland Planktonic foraminifera PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-21.765000,-21.765000,67.866660,67.866660) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Age 14C AMS dated error to older error to younger dated standard deviation difference ARK-X/2 Calendar age Carbon-14 Denmark Strait Depth composite sediment/rock GIK/IfG Gravity corer (Kiel type) Institute for Geosciences Christian Albrechts University Kiel Intercore correlation Polarstern PS2644-5 PS31 PS31/160-5 Sample optional label/labor no SL |
spellingShingle |
Age 14C AMS dated error to older error to younger dated standard deviation difference ARK-X/2 Calendar age Carbon-14 Denmark Strait Depth composite sediment/rock GIK/IfG Gravity corer (Kiel type) Institute for Geosciences Christian Albrechts University Kiel Intercore correlation Polarstern PS2644-5 PS31 PS31/160-5 Sample optional label/labor no SL Voelker, Antje H L Grootes, Pieter Meiert Nadeau, Marie-Josée Sarnthein, Michael Marine calibration points derived from sediment core PS2644-5 (Table 1) |
topic_facet |
Age 14C AMS dated error to older error to younger dated standard deviation difference ARK-X/2 Calendar age Carbon-14 Denmark Strait Depth composite sediment/rock GIK/IfG Gravity corer (Kiel type) Institute for Geosciences Christian Albrechts University Kiel Intercore correlation Polarstern PS2644-5 PS31 PS31/160-5 Sample optional label/labor no SL |
description |
By correlating the climate records and radiocarbon ages of the planktonic foraminifera N. pachyderma(s) of deep-sea core PS2644 from the Iceland Sea with the annual-layer chronology of the GISP2 ice core, we obtained 80 marine 14C calibration points for the interval 11.4-53.3 ka cal BP. Between 27 and 54 ka cal BP the continuous record of 14C/cal age differences reveals three intervals of highly increased 14C concentrations coincident with low values of paleomagnetic field intensity, two of which are attributed to the geomagnetic Mono Lake and Laschamp excursions (33.5-34.5 ka cal BP with maximum 550 per mil marine Delta 14C, and 40.3-41.7 ka cal BP with maximum 1215 per mil marine Delta 14C, respectively). A third maximum (marine Delta 14C: 755 per mil) is observed around 38 ka cal BP and attributed to the geomagnetic intensity minimum following the Laschamp excursion. During all three events the Delta 14C values increase rapidly with maximum values occurring at the end of the respective geomagnetic intensity minimum. During the Mono Lake Event, however, our Delta 14C values seem to underestimate the atmospheric level, if compared to the 36Cl flux measured in the GRIP ice core (Wagner et al. 2000, doi:10.1016/S0012-821X(00)00196-5) and other records. As this excursion coincides with a meltwater event in core PS2644, the underestimation is probably caused by an increased planktonic reservoir age. The same effect also occurs from 38.5 to 40 ka cal BP when the meltwater lid of Heinrich Event 4 affected the planktonic record. |
format |
Dataset |
author |
Voelker, Antje H L Grootes, Pieter Meiert Nadeau, Marie-Josée Sarnthein, Michael |
author_facet |
Voelker, Antje H L Grootes, Pieter Meiert Nadeau, Marie-Josée Sarnthein, Michael |
author_sort |
Voelker, Antje H L |
title |
Marine calibration points derived from sediment core PS2644-5 (Table 1) |
title_short |
Marine calibration points derived from sediment core PS2644-5 (Table 1) |
title_full |
Marine calibration points derived from sediment core PS2644-5 (Table 1) |
title_fullStr |
Marine calibration points derived from sediment core PS2644-5 (Table 1) |
title_full_unstemmed |
Marine calibration points derived from sediment core PS2644-5 (Table 1) |
title_sort |
marine calibration points derived from sediment core ps2644-5 (table 1) |
publisher |
PANGAEA |
publishDate |
2000 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.134363 https://doi.org/10.1594/PANGAEA.134363 |
op_coverage |
LATITUDE: 67.866660 * LONGITUDE: -21.765000 * DATE/TIME START: 1994-09-19T07:20:00 * DATE/TIME END: 1994-09-19T07:20:00 * MINIMUM DEPTH, sediment/rock: 0.16 m * MAXIMUM DEPTH, sediment/rock: 6.59 m |
long_lat |
ENVELOPE(-21.765000,-21.765000,67.866660,67.866660) |
genre |
Denmark Strait ice core Iceland Planktonic foraminifera |
genre_facet |
Denmark Strait ice core Iceland Planktonic foraminifera |
op_source |
Supplement to: Voelker, Antje H L; Grootes, Pieter Meiert; Nadeau, Marie-Josée; Sarnthein, Michael (2000): Radiocarbon Levels in the Iceland Sea from 25–53 kyr and their Link to the Earth's Magnetic Field Intensity. Radiocarbon, 42(3), 437-452, https://doi.org/10.1017/S0033822200030368 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.134363 https://doi.org/10.1594/PANGAEA.134363 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.134363 https://doi.org/10.1017/S0033822200030368 |
_version_ |
1766396701599334400 |