Cited by 73Geology and Paleoclimatology ResearchArchaeology and ancient environmental studiesMarine and environmental studies

Radiocarbon calibration/comparison records based on marine sediments from the Pakistan and Iberian margins

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Bard, Edouard, Ménot, Guillemette, Rostek, Frauke, Licari, Laetitia, Böning, Philipp, Edwards, R Lawrence, Cheng, Hai, Wang, Yongjin +1 more·2013·Radiocarbon

Abstract

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 14 C 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 14 C 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 14 C 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 (δ 18 O) 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 δ 18 O 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 around 16 cal kyr BP and from 28 to 31 cal kyr BP. During these intervals, the data indicate that 14 C is somewhat older than indicated by the IntCal09 curve. Agreement between the data from both oceanic sites suggests that the discrepancy is not due to local changes of sea-surface 14 C reservoir ages, but rather that the IntCal09 curve needed to be updated in these intervals as has been done in the framework of IntCal13 (Reimer et al. 2013a, this issue).

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  • For Pakistan and Iberian margin sediment cores, climate proxy records are the same as those described for IntCal13.

    “For the sediment cores from the Pakistan and Iberian margins, the climate proxy records are the same as those described for IntCal13 (Bard et al. 2013).”

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Research works printed but not linked: 10

  1. [1]1. Altabet MA, Higginson MJ, Murray DW. 2002. The ef- fect of millennial-scale changes in Arabian Sea deni- trification on atmospheric CO 2 . Nature 415(6868): 159-62.
  2. [6]6. Bard E, Arnold M, Duprat J, Moyes J, Duplessy J-C. 1987. Reconstruction of the last deglaciation: decon- volved records of  18 O profiles, micropaleontological variations and accelerator mass spectrometric 14 C dat- ing. Climate Dynamics 1(2):101-12.
  3. [9]9. Bard E, Arnold M, Fairbanks RG, Hamelin B. 1993. 230 Th/ 234 U and 14 C ages obtained by mass spectrome- try on corals. Radiocarbon 35(1):191-9.
  4. [13]13. Bard E, Rostek F, Ménot-Combes G. 2004a. A better ra- diocarbon clock. Science 303(5655):178-9.
  5. [15]15. C yr B.P. by means of planktonic foraminifera of the Iberian Margin. Qua- ternary Research 61(2):204-14.
  6. [22]22. kyr B.P. Science 338(6105): 370-4.
  7. [31]31. Edwards RL, Cheng H, Wang YJ, Yuan DX, Kelly MJ, Kong XG, Wang XF, Burnett A, Smith E. 2013. A re- fined Hulu and Dongge Cave climate record and the timing of the climate change during the last glacial cy- cle. Earth and Planetary Science Letters, submitted.
  8. [35]35. Haflidason H, Sejrup HP, Klitgaard Kristensen D, Johnsen S. 1995. Coupled response of the late glacial climatic shifts of northwest Europe reflected in Green- land ice cores: evidence from the northern North Sea. Geology 23(12):1059-62.
  9. [41]41. Libby WF. 1952. Radiocarbon Dating. Chicago: Univer- https://doi.org/10.2458/azu_js_rc.55.17114 Published online by Cambridge University Press sity of Chicago Press.
  10. [68]68. Stuiver M, Grootes PM. 2000. GISP2 oxygen isotope ra- tios. Quaternary Research 53(3):277-84.

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Authors
Bard, E., Ménot, G., Rostek, F., Licari, L., Böning, P., Edwards, R. L., Cheng, H., Wang, Y., & Heaton, T. J.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • University of Minnesota (US)
  • Nanjing Normal University (CN)
  • University of Sheffield (GB)
Venue
Radiocarbon
Published
2013
Volume
55
Issue
4
Pages
1999-2019
ISSN
  • 0033-8222 (ISSN-L)
  • 1945-5755
OpenAlex
W2158905005
Cited by
73
References
73
Citations by year
2026: 2 · 2025: 2 · 2024: 1 · 2023: 9 · 2022: 7 · 2021: 18 · 2020: 7 · 2019: 5 · 2018: 3 · 2017: 4 · 2016: 3 · 2015: 6 · 2014: 1 · 2013: 3
FWCI
2.82
Type
journal article
Language
en
Open access
Locations
  • Radiocarbon (publishedVersion)
  • HAL (submittedVersion)
  • Institutional Archive of Ifremer (French Research Institute for Exploitation of the Sea) (submittedVersion, other-oa)
  • EGU General Assembly Conference Abstracts
Funders
  • National Science Foundation (1211299, 41230524, 1103403, 0908792)
  • Woods Hole Oceanographic Institution
  • Comer Science and Education Foundation
  • Equipex
  • Agence Nationale de la Recherche (ANR-10-EQPX-0024)
  • National Natural Science Foundation of China (1103403, 41230524)
  • Centre National de la Recherche Scientifique
  • Institut Polaire Français Paul Emile Victor
Topics
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Archaeology and ancient environmental studies
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and environmental studies
Keywords
radiocarbon calibration, oxygen isotopes, Dansgaard-Oeschger events, Heinrich events, planktonic foraminifera, Globigerinoides ruber, sedimentation rate, Arabian Sea, western Iberian margin, last glacial period, Indian monsoon, deep water ventilation, chronology, marine sediment

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