Rare earth elements from the Atlantic Sector
We present a Rare Earth Elements (REE) record at decadal resolution determined in the EPICA ice core drilled in Dronning Maud Land (EDML) in the Atlantic Sector of the East Antarctic Plateau, covering the transition from the last glacial age (LGA) to the early Holocene (26 600-7500 yr BP). Additiona...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.756834 2023-05-15T13:42:10+02:00 Rare earth elements from the Atlantic Sector Wegner, Anna Gabrielli, Paolo Wilhelms-Dick, Dorothee Ruth, Urs Kriews, Michael De Deckker, Patrick Barbante, Carlo Cozzi, Giulio Delmonte, Barbara Fischer, Hubertus MEDIAN LATITUDE: -61.004250 * MEDIAN LONGITUDE: 23.904503 * SOUTH-BOUND LATITUDE: -77.830000 * WEST-BOUND LONGITUDE: -74.100000 * NORTH-BOUND LATITUDE: -16.550000 * EAST-BOUND LONGITUDE: 172.520000 * DATE/TIME START: 2001-01-10T00:00:00 * DATE/TIME END: 2006-01-17T00:00:00 2012-02-02 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.756834 https://doi.org/10.1594/PANGAEA.756834 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.756834 https://doi.org/10.1594/PANGAEA.756834 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Wegner, Anna; Gabrielli, Paolo; Wilhelms-Dick, Dorothee; Ruth, Urs; Kriews, Michael; De Deckker, Patrick; Barbante, Carlo; Cozzi, Giulio; Delmonte, Barbara; Fischer, H (2012): Change in dust variability in the Atlantic sector of Antarctica at the end of the last deglaciation. Climate of the Past, 8(1), 135-147, https://doi.org/10.5194/cp-8-135-2012 EDML EDRILL EPICA EPICA-Campaigns EPICA drill EPICA Dronning Maud Land DML28C01_00 European Project for Ice Coring in Antarctica Kohnen Station Dataset 2012 ftpangaea https://doi.org/10.1594/PANGAEA.756834 https://doi.org/10.5194/cp-8-135-2012 2023-01-20T07:32:02Z We present a Rare Earth Elements (REE) record at decadal resolution determined in the EPICA ice core drilled in Dronning Maud Land (EDML) in the Atlantic Sector of the East Antarctic Plateau, covering the transition from the last glacial age (LGA) to the early Holocene (26 600-7500 yr BP). Additionally, samples from potential source areas (PSAs) for Antarctic dust were analysed for their REE characteristics. The dust provenance is discussed by comparing the REE fingerprints in the ice core and the PSAs samples. We find a shift in REE composition at 15 200 yr BP in the ice core samples. Before 15 200 yr BP, the dust composition is very uniform and its provenance was likely to be dominated by a South American source. After 15 200 yr BP, multiple sources such as Australia and New Zealand become relatively more important, albeit South America is possibly still an important dust supplier. A similar change in the dust characteristics was observed in the EPICA Dome C ice core at around ~15 000 yr BP. A return to more glacial dust characteristics between ~8300 and ~7500 yr BP, as observed in the EPICA Dome C core, could not be observed in the EDML core. Consequently, the dust provenance at the two sites must have been different at that time. Dataset Antarc* Antarctic Antarctica Dronning Maud Land EPICA ice core PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Dronning Maud Land Kohnen ENVELOPE(0.000,0.000,-75.000,-75.000) Kohnen Station ENVELOPE(0.000,0.000,-75.000,-75.000) New Zealand ENVELOPE(-74.100000,172.520000,-16.550000,-77.830000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
EDML EDRILL EPICA EPICA-Campaigns EPICA drill EPICA Dronning Maud Land DML28C01_00 European Project for Ice Coring in Antarctica Kohnen Station |
spellingShingle |
EDML EDRILL EPICA EPICA-Campaigns EPICA drill EPICA Dronning Maud Land DML28C01_00 European Project for Ice Coring in Antarctica Kohnen Station Wegner, Anna Gabrielli, Paolo Wilhelms-Dick, Dorothee Ruth, Urs Kriews, Michael De Deckker, Patrick Barbante, Carlo Cozzi, Giulio Delmonte, Barbara Fischer, Hubertus Rare earth elements from the Atlantic Sector |
topic_facet |
EDML EDRILL EPICA EPICA-Campaigns EPICA drill EPICA Dronning Maud Land DML28C01_00 European Project for Ice Coring in Antarctica Kohnen Station |
description |
We present a Rare Earth Elements (REE) record at decadal resolution determined in the EPICA ice core drilled in Dronning Maud Land (EDML) in the Atlantic Sector of the East Antarctic Plateau, covering the transition from the last glacial age (LGA) to the early Holocene (26 600-7500 yr BP). Additionally, samples from potential source areas (PSAs) for Antarctic dust were analysed for their REE characteristics. The dust provenance is discussed by comparing the REE fingerprints in the ice core and the PSAs samples. We find a shift in REE composition at 15 200 yr BP in the ice core samples. Before 15 200 yr BP, the dust composition is very uniform and its provenance was likely to be dominated by a South American source. After 15 200 yr BP, multiple sources such as Australia and New Zealand become relatively more important, albeit South America is possibly still an important dust supplier. A similar change in the dust characteristics was observed in the EPICA Dome C ice core at around ~15 000 yr BP. A return to more glacial dust characteristics between ~8300 and ~7500 yr BP, as observed in the EPICA Dome C core, could not be observed in the EDML core. Consequently, the dust provenance at the two sites must have been different at that time. |
format |
Dataset |
author |
Wegner, Anna Gabrielli, Paolo Wilhelms-Dick, Dorothee Ruth, Urs Kriews, Michael De Deckker, Patrick Barbante, Carlo Cozzi, Giulio Delmonte, Barbara Fischer, Hubertus |
author_facet |
Wegner, Anna Gabrielli, Paolo Wilhelms-Dick, Dorothee Ruth, Urs Kriews, Michael De Deckker, Patrick Barbante, Carlo Cozzi, Giulio Delmonte, Barbara Fischer, Hubertus |
author_sort |
Wegner, Anna |
title |
Rare earth elements from the Atlantic Sector |
title_short |
Rare earth elements from the Atlantic Sector |
title_full |
Rare earth elements from the Atlantic Sector |
title_fullStr |
Rare earth elements from the Atlantic Sector |
title_full_unstemmed |
Rare earth elements from the Atlantic Sector |
title_sort |
rare earth elements from the atlantic sector |
publisher |
PANGAEA |
publishDate |
2012 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.756834 https://doi.org/10.1594/PANGAEA.756834 |
op_coverage |
MEDIAN LATITUDE: -61.004250 * MEDIAN LONGITUDE: 23.904503 * SOUTH-BOUND LATITUDE: -77.830000 * WEST-BOUND LONGITUDE: -74.100000 * NORTH-BOUND LATITUDE: -16.550000 * EAST-BOUND LONGITUDE: 172.520000 * DATE/TIME START: 2001-01-10T00:00:00 * DATE/TIME END: 2006-01-17T00:00:00 |
long_lat |
ENVELOPE(0.000,0.000,-75.000,-75.000) ENVELOPE(0.000,0.000,-75.000,-75.000) ENVELOPE(-74.100000,172.520000,-16.550000,-77.830000) |
geographic |
Antarctic Dronning Maud Land Kohnen Kohnen Station New Zealand |
geographic_facet |
Antarctic Dronning Maud Land Kohnen Kohnen Station New Zealand |
genre |
Antarc* Antarctic Antarctica Dronning Maud Land EPICA ice core |
genre_facet |
Antarc* Antarctic Antarctica Dronning Maud Land EPICA ice core |
op_source |
Supplement to: Wegner, Anna; Gabrielli, Paolo; Wilhelms-Dick, Dorothee; Ruth, Urs; Kriews, Michael; De Deckker, Patrick; Barbante, Carlo; Cozzi, Giulio; Delmonte, Barbara; Fischer, H (2012): Change in dust variability in the Atlantic sector of Antarctica at the end of the last deglaciation. Climate of the Past, 8(1), 135-147, https://doi.org/10.5194/cp-8-135-2012 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.756834 https://doi.org/10.1594/PANGAEA.756834 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.756834 https://doi.org/10.5194/cp-8-135-2012 |
_version_ |
1766163967904841728 |