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Late Glacial to Holocene radiocarbon constraints on North Pacific Intermediate Water ventilation and deglacial atmospheric CO2 sources

Davies, Maureen; Mix, Alan C.; Stoner, Joseph S; Southon, J; Cheseby, M.; Xuan, C.


Radiocarbon reconstructions of past ocean ventilation rates constrain oceanic sources and sinks of CO2 and mechanisms of subsurface hypoxia. Here, 14C in coexisting benthic and planktonic foraminifera from a sediment core 682 m deep off Southeast Alaska documents paleoventilation over the past ∼17,000 years. A chronology based on calibrated planktonic foraminiferal dates, consistent with independent terrestrial dates for regional glacial retreat, yields deglacial projection ages moderately...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Earth and Planetary Science Letters
DOI: 10.1016/j.epsl.2014.04.004


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