Atmospheric C-14 variations derived from tree rings during the early Younger Dryas
Atmospheric radiocarbon variations over the Younger Dryas interval, from ∼13,000 to 11,600 cal yr BP, are of immense scientific interest because they reveal crucial information about the linkages between climate, ocean circulation and the carbon cycle. However, no direct and reliable atmospheric C r...
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:189159 2023-05-15T16:39:01+02:00 Atmospheric C-14 variations derived from tree rings during the early Younger Dryas Hua, Quan Barbetti, Mike Fink, David Kaiser, Klaus Felix Friedrich, Michael Kromer, Bernd Levchenko, Vladimir A. Zoppi, Ugo Smith, Andrew M. Bertuch, Fiona 2009-12-01 https://espace.library.uq.edu.au/view/UQ:189159 eng eng Pergamon doi:10.1016/j.quascirev.2009.08.013 issn:0277-3791 Papua-New-Guinea Radiocarbon Age Calibration TH-230 ages North-Atlantic Ice core Circulation changes Climate changes Time-scale 1105 Ecology Evolution Behavior and Systematics 1204 Archaeology 1907 Geology 2306 Global and Planetary Change 3302 Archaeology Journal Article 2009 ftunivqespace https://doi.org/10.1016/j.quascirev.2009.08.013 2020-12-07T23:35:42Z Atmospheric radiocarbon variations over the Younger Dryas interval, from ∼13,000 to 11,600 cal yr BP, are of immense scientific interest because they reveal crucial information about the linkages between climate, ocean circulation and the carbon cycle. However, no direct and reliable atmospheric C records based on tree rings for the entire Younger Dryas have been available. In this paper, we present (1) high-precision C measurements on the extension of absolute tree-ring chronology from 12,400 to 12,560 cal yr BP and (2) high-precision, high-resolution atmospheric C record derived from a 617-yr-long tree-ring chronology of Huon pine from Tasmania, Australia, spanning the early Younger Dryas. The new tree-ring C records bridge the current gap in European tree-ring radiocarbon chronologies during the early Younger Dryas, linking the floating Lateglacial Pine record to the absolute tree-ring timescale. A continuous and reliable atmospheric C record for the past 14,000 cal yr BP including the Younger Dryas is now available. The new records indicate that the abrupt rise in atmospheric ΔC associated with the Younger Dryas onset occurs at ∼12,760 cal yr BP, ∼240 yrs later than that recorded in Cariaco varves, with a smaller magnitude of ∼40‰ followed by several centennial ΔC variations of 20-25‰. Comparing the tree-ring ΔC to marine-derived ΔC and modelled ΔC based on ice-core Be fluxes, we conclude that changes in ocean circulation were mainly responsible for the Younger Dryas onset, while a combination of changes in ocean circulation and C production rate were responsible for atmospheric ΔC variations for the remainder of the Younger Dryas. Article in Journal/Newspaper ice core North Atlantic The University of Queensland: UQ eSpace Huon ENVELOPE(-57.998,-57.998,-63.367,-63.367) Quaternary Science Reviews 28 25-26 2982 2990 |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
Papua-New-Guinea Radiocarbon Age Calibration TH-230 ages North-Atlantic Ice core Circulation changes Climate changes Time-scale 1105 Ecology Evolution Behavior and Systematics 1204 Archaeology 1907 Geology 2306 Global and Planetary Change 3302 Archaeology |
spellingShingle |
Papua-New-Guinea Radiocarbon Age Calibration TH-230 ages North-Atlantic Ice core Circulation changes Climate changes Time-scale 1105 Ecology Evolution Behavior and Systematics 1204 Archaeology 1907 Geology 2306 Global and Planetary Change 3302 Archaeology Hua, Quan Barbetti, Mike Fink, David Kaiser, Klaus Felix Friedrich, Michael Kromer, Bernd Levchenko, Vladimir A. Zoppi, Ugo Smith, Andrew M. Bertuch, Fiona Atmospheric C-14 variations derived from tree rings during the early Younger Dryas |
topic_facet |
Papua-New-Guinea Radiocarbon Age Calibration TH-230 ages North-Atlantic Ice core Circulation changes Climate changes Time-scale 1105 Ecology Evolution Behavior and Systematics 1204 Archaeology 1907 Geology 2306 Global and Planetary Change 3302 Archaeology |
description |
Atmospheric radiocarbon variations over the Younger Dryas interval, from ∼13,000 to 11,600 cal yr BP, are of immense scientific interest because they reveal crucial information about the linkages between climate, ocean circulation and the carbon cycle. However, no direct and reliable atmospheric C records based on tree rings for the entire Younger Dryas have been available. In this paper, we present (1) high-precision C measurements on the extension of absolute tree-ring chronology from 12,400 to 12,560 cal yr BP and (2) high-precision, high-resolution atmospheric C record derived from a 617-yr-long tree-ring chronology of Huon pine from Tasmania, Australia, spanning the early Younger Dryas. The new tree-ring C records bridge the current gap in European tree-ring radiocarbon chronologies during the early Younger Dryas, linking the floating Lateglacial Pine record to the absolute tree-ring timescale. A continuous and reliable atmospheric C record for the past 14,000 cal yr BP including the Younger Dryas is now available. The new records indicate that the abrupt rise in atmospheric ΔC associated with the Younger Dryas onset occurs at ∼12,760 cal yr BP, ∼240 yrs later than that recorded in Cariaco varves, with a smaller magnitude of ∼40‰ followed by several centennial ΔC variations of 20-25‰. Comparing the tree-ring ΔC to marine-derived ΔC and modelled ΔC based on ice-core Be fluxes, we conclude that changes in ocean circulation were mainly responsible for the Younger Dryas onset, while a combination of changes in ocean circulation and C production rate were responsible for atmospheric ΔC variations for the remainder of the Younger Dryas. |
format |
Article in Journal/Newspaper |
author |
Hua, Quan Barbetti, Mike Fink, David Kaiser, Klaus Felix Friedrich, Michael Kromer, Bernd Levchenko, Vladimir A. Zoppi, Ugo Smith, Andrew M. Bertuch, Fiona |
author_facet |
Hua, Quan Barbetti, Mike Fink, David Kaiser, Klaus Felix Friedrich, Michael Kromer, Bernd Levchenko, Vladimir A. Zoppi, Ugo Smith, Andrew M. Bertuch, Fiona |
author_sort |
Hua, Quan |
title |
Atmospheric C-14 variations derived from tree rings during the early Younger Dryas |
title_short |
Atmospheric C-14 variations derived from tree rings during the early Younger Dryas |
title_full |
Atmospheric C-14 variations derived from tree rings during the early Younger Dryas |
title_fullStr |
Atmospheric C-14 variations derived from tree rings during the early Younger Dryas |
title_full_unstemmed |
Atmospheric C-14 variations derived from tree rings during the early Younger Dryas |
title_sort |
atmospheric c-14 variations derived from tree rings during the early younger dryas |
publisher |
Pergamon |
publishDate |
2009 |
url |
https://espace.library.uq.edu.au/view/UQ:189159 |
long_lat |
ENVELOPE(-57.998,-57.998,-63.367,-63.367) |
geographic |
Huon |
geographic_facet |
Huon |
genre |
ice core North Atlantic |
genre_facet |
ice core North Atlantic |
op_relation |
doi:10.1016/j.quascirev.2009.08.013 issn:0277-3791 |
op_doi |
https://doi.org/10.1016/j.quascirev.2009.08.013 |
container_title |
Quaternary Science Reviews |
container_volume |
28 |
container_issue |
25-26 |
container_start_page |
2982 |
op_container_end_page |
2990 |
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1766029380378689536 |