Changes in North Atlantic Radiocarbon Reservoir Ages During the Allerød and Younger Dryas

Estimates of the radiocarbon age of seawater are required in correlations between marine and terrestrial records of the late Quaternary climate. We radiocarbon-dated marine shells and terrestrial plant remains deposited in two bays on Norway's west coast between 11,000 and 14,000 years ago, a t...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2006-06, Vol.312 (5779), p.1514-1517
Main Authors: Bondevik, Stein, Mangerud, Jan, Birks, Hilary H, Gulliksen, Steinar, Reimer, Paula
Format: Article
Language:English
Subjects:
Atlantic Ocean
Calibration
Carbon dating
Carbon Radioisotopes
Climate change
Coasts
Earth sciences
Earth, ocean, space
Environment
Exact sciences and technology
Flowers & plants
Geologic Sediments
Geological time
Growth rings
Marine and continental quaternary
Marine Biology
Oceans
Plants
Radiocarbon
Radiocarbon dating
Sea water
Seas
Seawater
Shells
Surface water
Surficial geology
Time
Younger Dryas period
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Summary:Estimates of the radiocarbon age of seawater are required in correlations between marine and terrestrial records of the late Quaternary climate. We radiocarbon-dated marine shells and terrestrial plant remains deposited in two bays on Norway's west coast between 11,000 and 14,000 years ago, a time of large and abrupt climatic changes that included the Younger Dryas (YD) cold episode. The radiocarbon age difference between the shells and the plants showed that sea surface reservoir ages increased from 400 to 600 years in the early YD, stabilized for 900 years, and dropped by 300 years within a century across the YD-Holocene transition.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1123300