Iron (Fe) concentrations and fluxes in TALDICE ice core 0.6 to 314 ky BP, supplement to: Vallelonga, Paul T; Barbante, Carlo; Cozzi, Giulio; Gabrieli, Jacopo; Schüpbach, Simon; Spolaor, Andrea; Turetta, Clara (2013): Iron fluxes to Talos Dome, Antarctica, over the past 200 kyr. Climate of the Past, 9, 597-604
Atmospheric fluxes of iron (Fe) over the past 200 kyr are reported for the coastal Antarctic Talos Dome ice core, based on acid leachable Fe concentrations. Fluxes of Fe to Talos Dome were consistently greater than those at Dome C, with the greatest difference observed during interglacial climates....
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ftdatacite:10.1594/pangaea.808940 2023-05-15T13:53:26+02:00 Iron (Fe) concentrations and fluxes in TALDICE ice core 0.6 to 314 ky BP, supplement to: Vallelonga, Paul T; Barbante, Carlo; Cozzi, Giulio; Gabrieli, Jacopo; Schüpbach, Simon; Spolaor, Andrea; Turetta, Clara (2013): Iron fluxes to Talos Dome, Antarctica, over the past 200 kyr. Climate of the Past, 9, 597-604 Vallelonga, Paul T Barbante, Carlo Cozzi, Giulio Gabrieli, Jacopo Schüpbach, Simon Spolaor, Andrea Turetta, Clara 2013 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.808940 https://doi.pangaea.de/10.1594/PANGAEA.808940 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.5194/cp-9-597-2013 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Number DEPTH, ice/snow AGE Accumulation of snow/ice per year Iron Iron, flux Calcium, flux Electromechanical drill Talos Dome Ice Core TALDICE Dataset dataset Supplementary Dataset 2013 ftdatacite https://doi.org/10.1594/pangaea.808940 https://doi.org/10.5194/cp-9-597-2013 2022-02-09T13:54:01Z Atmospheric fluxes of iron (Fe) over the past 200 kyr are reported for the coastal Antarctic Talos Dome ice core, based on acid leachable Fe concentrations. Fluxes of Fe to Talos Dome were consistently greater than those at Dome C, with the greatest difference observed during interglacial climates. We observe different Fe flux trends at Dome C and Talos Dome during the deglaciation and early Holocene, attributed to a combination of deglacial activation of dust sources local to Talos Dome and the reorganisation of atmospheric transport pathways with the retreat of the Ross Sea ice shelf. This supports similar findings based on dust particle sizes and fluxes and Rare Earth Element fluxes. We show that Ca and Fe should not be used as quantitative proxies for mineral dust, as they all demonstrate different deglacial trends at Talos Dome and Dome C. Considering that a 20 ppmv decrease in atmospheric CO2 at the coldest part of the last glacial maximum occurs contemporaneously with the period of greatest Fe and dust flux to Antarctica, we confirm that the maximum contribution of aeolian dust deposition to Southern Ocean sequestration of atmospheric CO2 is approximately 20 ppmv. : Depth is TOP depth [m] of sample Dataset Antarc* Antarctic Antarctica ice core Ice Shelf Ross Sea Sea ice Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Antarctic Southern Ocean Ross Sea Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Number DEPTH, ice/snow AGE Accumulation of snow/ice per year Iron Iron, flux Calcium, flux Electromechanical drill Talos Dome Ice Core TALDICE |
spellingShingle |
Number DEPTH, ice/snow AGE Accumulation of snow/ice per year Iron Iron, flux Calcium, flux Electromechanical drill Talos Dome Ice Core TALDICE Vallelonga, Paul T Barbante, Carlo Cozzi, Giulio Gabrieli, Jacopo Schüpbach, Simon Spolaor, Andrea Turetta, Clara Iron (Fe) concentrations and fluxes in TALDICE ice core 0.6 to 314 ky BP, supplement to: Vallelonga, Paul T; Barbante, Carlo; Cozzi, Giulio; Gabrieli, Jacopo; Schüpbach, Simon; Spolaor, Andrea; Turetta, Clara (2013): Iron fluxes to Talos Dome, Antarctica, over the past 200 kyr. Climate of the Past, 9, 597-604 |
topic_facet |
Number DEPTH, ice/snow AGE Accumulation of snow/ice per year Iron Iron, flux Calcium, flux Electromechanical drill Talos Dome Ice Core TALDICE |
description |
Atmospheric fluxes of iron (Fe) over the past 200 kyr are reported for the coastal Antarctic Talos Dome ice core, based on acid leachable Fe concentrations. Fluxes of Fe to Talos Dome were consistently greater than those at Dome C, with the greatest difference observed during interglacial climates. We observe different Fe flux trends at Dome C and Talos Dome during the deglaciation and early Holocene, attributed to a combination of deglacial activation of dust sources local to Talos Dome and the reorganisation of atmospheric transport pathways with the retreat of the Ross Sea ice shelf. This supports similar findings based on dust particle sizes and fluxes and Rare Earth Element fluxes. We show that Ca and Fe should not be used as quantitative proxies for mineral dust, as they all demonstrate different deglacial trends at Talos Dome and Dome C. Considering that a 20 ppmv decrease in atmospheric CO2 at the coldest part of the last glacial maximum occurs contemporaneously with the period of greatest Fe and dust flux to Antarctica, we confirm that the maximum contribution of aeolian dust deposition to Southern Ocean sequestration of atmospheric CO2 is approximately 20 ppmv. : Depth is TOP depth [m] of sample |
format |
Dataset |
author |
Vallelonga, Paul T Barbante, Carlo Cozzi, Giulio Gabrieli, Jacopo Schüpbach, Simon Spolaor, Andrea Turetta, Clara |
author_facet |
Vallelonga, Paul T Barbante, Carlo Cozzi, Giulio Gabrieli, Jacopo Schüpbach, Simon Spolaor, Andrea Turetta, Clara |
author_sort |
Vallelonga, Paul T |
title |
Iron (Fe) concentrations and fluxes in TALDICE ice core 0.6 to 314 ky BP, supplement to: Vallelonga, Paul T; Barbante, Carlo; Cozzi, Giulio; Gabrieli, Jacopo; Schüpbach, Simon; Spolaor, Andrea; Turetta, Clara (2013): Iron fluxes to Talos Dome, Antarctica, over the past 200 kyr. Climate of the Past, 9, 597-604 |
title_short |
Iron (Fe) concentrations and fluxes in TALDICE ice core 0.6 to 314 ky BP, supplement to: Vallelonga, Paul T; Barbante, Carlo; Cozzi, Giulio; Gabrieli, Jacopo; Schüpbach, Simon; Spolaor, Andrea; Turetta, Clara (2013): Iron fluxes to Talos Dome, Antarctica, over the past 200 kyr. Climate of the Past, 9, 597-604 |
title_full |
Iron (Fe) concentrations and fluxes in TALDICE ice core 0.6 to 314 ky BP, supplement to: Vallelonga, Paul T; Barbante, Carlo; Cozzi, Giulio; Gabrieli, Jacopo; Schüpbach, Simon; Spolaor, Andrea; Turetta, Clara (2013): Iron fluxes to Talos Dome, Antarctica, over the past 200 kyr. Climate of the Past, 9, 597-604 |
title_fullStr |
Iron (Fe) concentrations and fluxes in TALDICE ice core 0.6 to 314 ky BP, supplement to: Vallelonga, Paul T; Barbante, Carlo; Cozzi, Giulio; Gabrieli, Jacopo; Schüpbach, Simon; Spolaor, Andrea; Turetta, Clara (2013): Iron fluxes to Talos Dome, Antarctica, over the past 200 kyr. Climate of the Past, 9, 597-604 |
title_full_unstemmed |
Iron (Fe) concentrations and fluxes in TALDICE ice core 0.6 to 314 ky BP, supplement to: Vallelonga, Paul T; Barbante, Carlo; Cozzi, Giulio; Gabrieli, Jacopo; Schüpbach, Simon; Spolaor, Andrea; Turetta, Clara (2013): Iron fluxes to Talos Dome, Antarctica, over the past 200 kyr. Climate of the Past, 9, 597-604 |
title_sort |
iron (fe) concentrations and fluxes in taldice ice core 0.6 to 314 ky bp, supplement to: vallelonga, paul t; barbante, carlo; cozzi, giulio; gabrieli, jacopo; schüpbach, simon; spolaor, andrea; turetta, clara (2013): iron fluxes to talos dome, antarctica, over the past 200 kyr. climate of the past, 9, 597-604 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2013 |
url |
https://dx.doi.org/10.1594/pangaea.808940 https://doi.pangaea.de/10.1594/PANGAEA.808940 |
long_lat |
ENVELOPE(158.000,158.000,-73.000,-73.000) |
geographic |
Antarctic Southern Ocean Ross Sea Talos Dome |
geographic_facet |
Antarctic Southern Ocean Ross Sea Talos Dome |
genre |
Antarc* Antarctic Antarctica ice core Ice Shelf Ross Sea Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica ice core Ice Shelf Ross Sea Sea ice Southern Ocean |
op_relation |
https://dx.doi.org/10.5194/cp-9-597-2013 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.808940 https://doi.org/10.5194/cp-9-597-2013 |
_version_ |
1766258517007663104 |