Direct dating of the oxygen-isotope record of the last deglaciation by 14C accelerator mass spectrometry

Nature ◽  
1986 ◽  
Vol 320 (6060) ◽  
pp. 350-352 ◽  
Author(s):  
Jean-Claude Duplessy ◽  
Maurice Arnold ◽  
Pierre Maurice ◽  
Edouard Bard ◽  
Josette Duprat ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Oxygen Isotope ◽  
Accelerator Mass Spectrometry ◽  
Last Deglaciation ◽  
Oxygen Isotope Record ◽  
Isotope Record ◽  
The Last Deglaciation

scholarly journals 14C Ages of a Varved Last Glacial Maximum Section Off Pakistan

Radiocarbon ◽  
2003 ◽  
Vol 45 (3) ◽  
pp. 467-477 ◽  
Author(s):  
Ulrich von Rad ◽  
Michael Sarnthein ◽  
Pieter M Grootes ◽  
Heidi Doose-Rolinski ◽  
Jochen Erbacher
Keyword(s):  
Mass Spectrometry ◽  
Oxygen Isotope ◽  
Last Glacial Maximum ◽  
Accelerator Mass Spectrometry ◽  
Ice Core ◽  
Glacial Maximum ◽  
Last Glacial ◽  
Oxygen Isotope Record ◽  
Isotope Record

In a core off Pakistan, we obtained 38 14C analyses by accelerator mass spectrometry (AMS) from a 4.4-m-thick, expanded, annually-laminated Last Glacial Maximum (LGM) section, bracketed by bioturbated intervals ascribed to the Heinrich-1 (H1) and Heinrich-2 (H2) equivalent events (52 14C analyses between 24–15 kyr BP). A floating varve age scale, anchored to the oxygen isotope record of the layer-counted GISP2 ice core at the H2/LGM boundary, results in an annually dated record for the LGM from 23,450–17,900 cal BP. The floating varve scale of the LGM provides us with a tentative calibration of local marine AMS 14C age dates to calendar years.

Sea-Level Estimates during the Last Deglaciation Based on δ18O and Accelerator Mass Spectrometry 14C Ages Measured in Globigerina bulloides

1989 ◽  
Vol 31 (3) ◽  
pp. 381-391 ◽  
Author(s):  
Edouard Bard ◽  
Richard Fairbanks ◽  
Maurice Arnold ◽  
Pierre Maurice ◽  
Josette Duprat ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Sea Level ◽  
North Atlantic ◽  
Accelerator Mass Spectrometry ◽  
Planktonic Foraminifera ◽  
Last Deglaciation ◽  
Ice Melt ◽  
Globigerina Bulloides ◽  
The North ◽  
The Last Deglaciation

AbstractCoupled measurements of δ18O and accelerator mass spectrometry (AMS) 14C in a particular species of planktonic foraminifera may be used to calculate sea-level estimates for the last deglaciation. Of critical importance for this type of study is a knowledge of the seasonality of foraminiferal growth, which can be provided by δ18O measurements of modern shells (core tops, plankton tows). Isotopic (δ18O, AMS-14C dating) and faunal records (transfer function sea surface temperature) were obtained from two cores in the North Atlantic at about 37°N. The locations were chosen to obtain high sedimentation rate records removed from the major ice-melt discharge areas of the last deglaciation. Based upon Globigerina bulloides data, four δ18O-based sea-level estimates were calculated: −67 ± 7 m at 12,200 yr B.P. and −24 ± 8 m at about 8200 yr B.P. for core SU 81-18; −83 ± 10 m at 12,200 yr B.P. and −13 ± 11 m at about 8500 yr B.P. for core SU 81-14. Using a second working hypothesis concerning the seasonability of G. bulloides growth, it is suggested that the sea-level rose by about 40 m during the millennium which followed 14,500 yr B.P.

Retreat velocity of the North Atlantic polar front during the last deglaciation determined by 14C accelerator mass spectrometry

Nature ◽  
1987 ◽  
Vol 328 (6133) ◽  
pp. 791-794 ◽  
Author(s):  
Edouard Bard ◽  
Maurice Arnold ◽  
Pierre Maurice ◽  
Josette Duprat ◽  
Jean Moyes ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
North Atlantic ◽  
Accelerator Mass Spectrometry ◽  
Polar Front ◽  
Last Deglaciation ◽  
The North ◽  
The Last Deglaciation ◽  
The North Atlantic

A revised seawater sulfate oxygen isotope record for the last 4 Myr

2016 ◽  
Vol 175 ◽  
pp. 239-251 ◽  
Author(s):  
Stefan Markovic ◽  
Adina Paytan ◽  
Hong Li ◽  
Ulrich G. Wortmann
Keyword(s):  
Oxygen Isotope ◽  
Seawater Sulfate ◽  
Oxygen Isotope Record ◽  
Isotope Record

Temperature sensitivity of planktic foraminifera and its influence on the oxygen isotope record

1998 ◽  
Vol 33 (3-4) ◽  
pp. 223-240 ◽  
Author(s):  
Stefan Mulitza ◽  
Tobias Wolff ◽  
Jürgen Pätzold ◽  
Walter Hale ◽  
Gerold Wefer
Keyword(s):  
Oxygen Isotope ◽  
Temperature Sensitivity ◽  
Planktic Foraminifera ◽  
Oxygen Isotope Record ◽  
Isotope Record

A 5000-year lacustrine sediment oxygen isotope record of late Holocene climate change in Newfoundland, Canada

2022 ◽  
Vol 278 ◽  
pp. 107376
Author(s):  
Matthew S. Finkenbinder ◽  
Byron A. Steinman ◽  
Broxton W. Bird ◽  
Ellen C. Heilman ◽  
Alexandria R. Aspey ◽  
...  
Keyword(s):  
Climate Change ◽  
Oxygen Isotope ◽  
Late Holocene ◽  
Lacustrine Sediment ◽  
Holocene Climate ◽  
Holocene Climate Change ◽  
Oxygen Isotope Record ◽  
Isotope Record
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