Δ17O of O2 during Termination II and Termination V from EPICA Dome C ice core and reconstruction of global oxygen biosphere productivity over the last 445 ka based on D17O of O2 measurements

Significant changes in atmospheric CO2 over glacial-interglacial cycles have mainly been attributed to the Southern Ocean through physical and biological processes. However, little is known about the contribution of global biosphere productivity, associated with important CO2 fluxes. Here we present...

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Bibliographic Details
Main Authors: Brandon, Margaux, Landais, Amaelle, Duchamp-Alphonse, Stéphanie, Favre, Violaine, Schmitz, Léa, Abrial, Héloïse, Prié, Frédéric, Extier, Thomas, Blunier, Thomas
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA - Data Publisher for Earth & Environmental Science 2020
Subjects:
EDC
global oxygen biosphere productivity
Δ17O of O2
European Project for Ice Coring in Antarctica EPICA
Antarctic
Southern Ocean
The Antarctic
Antarc*
Antarctica
EPICA
ice core
Online Access:https://dx.doi.org/10.1594/pangaea.914609
https://doi.pangaea.de/10.1594/PANGAEA.914609
Description
Summary:Significant changes in atmospheric CO2 over glacial-interglacial cycles have mainly been attributed to the Southern Ocean through physical and biological processes. However, little is known about the contribution of global biosphere productivity, associated with important CO2 fluxes. Here we present the first high resolution record of Δ17O of O2 in the Antarctic EPICA Dome C ice core over Termination V and Marine Isotopic Stage (MIS) 11 and reconstruct the global oxygen biosphere productivity over the last 445 ka.

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