Radiocarbon calibration/comparison records based on marine sediments from the Pakistan and Iberian Margins
We present a new record of radiocarbon ages measured by accelerator mass spectrometry (AMS) on a deep-sea core collected off the Pakistan Margin. The C-14 ages measured on the planktonic foraminifera Globigerinoides ruber from core MD04-2876 define a high and stable sedimentation rate on the order o...
Published in: | Radiocarbon |
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Main Authors: | , , , , , , , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2013
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Online Access: | https://hal.science/hal-01021958 https://doi.org/10.2458/azu_js_rc.55.17114 |
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ftunivnantes:oai:HAL:hal-01021958v1 |
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openpolar |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDE.MCG]Environmental Sciences/Global Changes Bard, Edouard Menot, Guillemette Rostek, Frauke Licari, Laetitia Boening, Philipp Edwards, R. Lawrence Cheng, Hai Wang, Yongjin Heaton, Timothy J. Radiocarbon calibration/comparison records based on marine sediments from the Pakistan and Iberian Margins |
topic_facet |
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDE.MCG]Environmental Sciences/Global Changes |
description |
We present a new record of radiocarbon ages measured by accelerator mass spectrometry (AMS) on a deep-sea core collected off the Pakistan Margin. The C-14 ages measured on the planktonic foraminifera Globigerinoides ruber from core MD04-2876 define a high and stable sedimentation rate on the order of 50 cm/kyr over the last 50 kyr. The site is distant from the main upwelling zone of the western Arabian Sea where C-14 reservoir age is large and may be variable. Many independent proxies based on elemental analyses, mineralogy, biomarkers, isotopic proxies, and foraminiferal abundances show abrupt changes correlative with Dansgaard-Oeschger and Heinrich events. It is now common knowledge that these climatic events also affected the Arabian Sea during the last glacial period through changes in the Indian monsoon and in ventilation at intermediate depths. The stratigraphic agreement between all proxies, from fine-to coarse-size fractions, indicates that the foraminiferal C-14 ages are representative of the different sediment fractions. To build a calendar age scale for core MD04-2876, we matched its climate record to the oxygen isotopic (delta O-18) profile of Hulu Cave stalagmites that have been accurately dated by U-Th (Wang et al. 2001; Southon et al. 2012; Edwards et al., submitted). Both archives exhibit very similar signatures, even for century-long events linked to monsoonal variations. For comparison, we have also updated our previous work on core MD95-2042 from the Iberian Margin (Bard et al. 2004a, b, c), whose climate record has likewise been tuned to the high-resolution delta O-18 Hulu Cave profile. Sophisticated and novel statistical techniques were used to interpolate ages and calculate uncertainties between chronological tie-points (Heaton et al. 2013, this issue). The data from the Pakistan and Iberian margins compare well even if they come from distant sites characterized by different oceanic conditions. Collectively, the data also compare well with the IntCal09 curve, except for specific intervals ... |
author2 |
Géochimie & géochrono Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Collège de France - Chaire Evolution du climat et de l'océan Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Bio-Indic. & Traceurs |
format |
Article in Journal/Newspaper |
author |
Bard, Edouard Menot, Guillemette Rostek, Frauke Licari, Laetitia Boening, Philipp Edwards, R. Lawrence Cheng, Hai Wang, Yongjin Heaton, Timothy J. |
author_facet |
Bard, Edouard Menot, Guillemette Rostek, Frauke Licari, Laetitia Boening, Philipp Edwards, R. Lawrence Cheng, Hai Wang, Yongjin Heaton, Timothy J. |
author_sort |
Bard, Edouard |
title |
Radiocarbon calibration/comparison records based on marine sediments from the Pakistan and Iberian Margins |
title_short |
Radiocarbon calibration/comparison records based on marine sediments from the Pakistan and Iberian Margins |
title_full |
Radiocarbon calibration/comparison records based on marine sediments from the Pakistan and Iberian Margins |
title_fullStr |
Radiocarbon calibration/comparison records based on marine sediments from the Pakistan and Iberian Margins |
title_full_unstemmed |
Radiocarbon calibration/comparison records based on marine sediments from the Pakistan and Iberian Margins |
title_sort |
radiocarbon calibration/comparison records based on marine sediments from the pakistan and iberian margins |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-01021958 https://doi.org/10.2458/azu_js_rc.55.17114 |
long_lat |
ENVELOPE(8.610,8.610,62.837,62.837) |
geographic |
Indian Hulu |
geographic_facet |
Indian Hulu |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
ISSN: 0033-8222 EISSN: 1945-5755 Radiocarbon https://hal.science/hal-01021958 Radiocarbon, 2013, 55 (4), pp.1999-2019. ⟨10.2458/azu_js_rc.55.17114⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.2458/azu_js_rc.55.17114 hal-01021958 https://hal.science/hal-01021958 doi:10.2458/azu_js_rc.55.17114 |
op_doi |
https://doi.org/10.2458/azu_js_rc.55.17114 |
container_title |
Radiocarbon |
container_volume |
55 |
container_issue |
4 |
container_start_page |
1999 |
op_container_end_page |
2019 |
_version_ |
1766170548154400768 |
spelling |
ftunivnantes:oai:HAL:hal-01021958v1 2023-05-15T18:01:11+02:00 Radiocarbon calibration/comparison records based on marine sediments from the Pakistan and Iberian Margins Bard, Edouard Menot, Guillemette Rostek, Frauke Licari, Laetitia Boening, Philipp Edwards, R. Lawrence Cheng, Hai Wang, Yongjin Heaton, Timothy J. Géochimie & géochrono Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Collège de France - Chaire Evolution du climat et de l'océan Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Bio-Indic. & Traceurs 2013 https://hal.science/hal-01021958 https://doi.org/10.2458/azu_js_rc.55.17114 en eng HAL CCSD University of Arizona info:eu-repo/semantics/altIdentifier/doi/10.2458/azu_js_rc.55.17114 hal-01021958 https://hal.science/hal-01021958 doi:10.2458/azu_js_rc.55.17114 ISSN: 0033-8222 EISSN: 1945-5755 Radiocarbon https://hal.science/hal-01021958 Radiocarbon, 2013, 55 (4), pp.1999-2019. ⟨10.2458/azu_js_rc.55.17114⟩ [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2013 ftunivnantes https://doi.org/10.2458/azu_js_rc.55.17114 2023-02-08T11:08:04Z We present a new record of radiocarbon ages measured by accelerator mass spectrometry (AMS) on a deep-sea core collected off the Pakistan Margin. The C-14 ages measured on the planktonic foraminifera Globigerinoides ruber from core MD04-2876 define a high and stable sedimentation rate on the order of 50 cm/kyr over the last 50 kyr. The site is distant from the main upwelling zone of the western Arabian Sea where C-14 reservoir age is large and may be variable. Many independent proxies based on elemental analyses, mineralogy, biomarkers, isotopic proxies, and foraminiferal abundances show abrupt changes correlative with Dansgaard-Oeschger and Heinrich events. It is now common knowledge that these climatic events also affected the Arabian Sea during the last glacial period through changes in the Indian monsoon and in ventilation at intermediate depths. The stratigraphic agreement between all proxies, from fine-to coarse-size fractions, indicates that the foraminiferal C-14 ages are representative of the different sediment fractions. To build a calendar age scale for core MD04-2876, we matched its climate record to the oxygen isotopic (delta O-18) profile of Hulu Cave stalagmites that have been accurately dated by U-Th (Wang et al. 2001; Southon et al. 2012; Edwards et al., submitted). Both archives exhibit very similar signatures, even for century-long events linked to monsoonal variations. For comparison, we have also updated our previous work on core MD95-2042 from the Iberian Margin (Bard et al. 2004a, b, c), whose climate record has likewise been tuned to the high-resolution delta O-18 Hulu Cave profile. Sophisticated and novel statistical techniques were used to interpolate ages and calculate uncertainties between chronological tie-points (Heaton et al. 2013, this issue). The data from the Pakistan and Iberian margins compare well even if they come from distant sites characterized by different oceanic conditions. Collectively, the data also compare well with the IntCal09 curve, except for specific intervals ... Article in Journal/Newspaper Planktonic foraminifera Université de Nantes: HAL-UNIV-NANTES Indian Hulu ENVELOPE(8.610,8.610,62.837,62.837) Radiocarbon 55 4 1999 2019 |