Sources of dust in Dronning Maud Land, Antarctica, during the last Glacial and the deglaciation derived by Rare Earth Element measurements in the EPICA-DML ice core
Mineral dust analysed in ice cores from Antarctica provides unique information about climate variability in the past more than 800 000 years. Higher dust load of the atmosphere during glacial times is attributed to higher aridity in the source and higher storminess during colder climate. For the int...
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ftawi:oai:epic.awi.de:18862 2023-05-15T13:39:47+02:00 Sources of dust in Dronning Maud Land, Antarctica, during the last Glacial and the deglaciation derived by Rare Earth Element measurements in the EPICA-DML ice core Wegner, Anna Barbante, C. Cozzi, G. Delmonte, B. Dick, Dorothee Fischer, Hubertus Gabrielli, P. Gaspari, V. Kriews, Michael Ruth, Urs Stölting, Ilsetraut 2008 https://epic.awi.de/id/eprint/18862/ https://hdl.handle.net/10013/epic.30539 unknown Wegner, A. , Barbante, C. , Cozzi, G. , Delmonte, B. , Dick, D. , Fischer, H. , Gabrielli, P. , Gaspari, V. , Kriews, M. , Ruth, U. and Stölting, I. (2008) Sources of dust in Dronning Maud Land, Antarctica, during the last Glacial and the deglaciation derived by Rare Earth Element measurements in the EPICA-DML ice core , EGU General Assembly, Vienna, Austria. April 2008. . hdl:10013/epic.30539 EPIC3EGU General Assembly, Vienna, Austria. April 2008., 13 Conference notRev 2008 ftawi 2021-12-24T15:32:44Z Mineral dust analysed in ice cores from Antarctica provides unique information about climate variability in the past more than 800 000 years. Higher dust load of the atmosphere during glacial times is attributed to higher aridity in the source and higher storminess during colder climate. For the interpretation of dust ice core records it is of importance to know the provenance of the dust. A new method is presented using Rare Earth Element (REE) fingerprints analysed by inductively coupled plasma mass spectroscopy (ICP-MS) to define dust provenances in ice cores. This method needs less than 10 ml of ice sample volume.Within the European Project for ice coring in Antarctica (EPICA) two deep ice cores were drilled, one of them in Dronning Maud Land (DML), an area of relatively high accumulation (recent accumulation rate: 64 kg/(m²year)). A quasi - continuous REE record is presented from the EPICA-DML ice core, from the Atlantic sector of the East Antarctic Plateau. The record covers the last Glacial and the following deglaciation (500 1100 m depth). A comparison with REE fingerprints in the potential source areas reveals South America as the source for glacial dust. During warmer climate other sources become more important. Conference Object Antarc* Antarctic Antarctica DML Dronning Maud Land EPICA ice core Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Dronning Maud Land |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Mineral dust analysed in ice cores from Antarctica provides unique information about climate variability in the past more than 800 000 years. Higher dust load of the atmosphere during glacial times is attributed to higher aridity in the source and higher storminess during colder climate. For the interpretation of dust ice core records it is of importance to know the provenance of the dust. A new method is presented using Rare Earth Element (REE) fingerprints analysed by inductively coupled plasma mass spectroscopy (ICP-MS) to define dust provenances in ice cores. This method needs less than 10 ml of ice sample volume.Within the European Project for ice coring in Antarctica (EPICA) two deep ice cores were drilled, one of them in Dronning Maud Land (DML), an area of relatively high accumulation (recent accumulation rate: 64 kg/(m²year)). A quasi - continuous REE record is presented from the EPICA-DML ice core, from the Atlantic sector of the East Antarctic Plateau. The record covers the last Glacial and the following deglaciation (500 1100 m depth). A comparison with REE fingerprints in the potential source areas reveals South America as the source for glacial dust. During warmer climate other sources become more important. |
format |
Conference Object |
author |
Wegner, Anna Barbante, C. Cozzi, G. Delmonte, B. Dick, Dorothee Fischer, Hubertus Gabrielli, P. Gaspari, V. Kriews, Michael Ruth, Urs Stölting, Ilsetraut |
spellingShingle |
Wegner, Anna Barbante, C. Cozzi, G. Delmonte, B. Dick, Dorothee Fischer, Hubertus Gabrielli, P. Gaspari, V. Kriews, Michael Ruth, Urs Stölting, Ilsetraut Sources of dust in Dronning Maud Land, Antarctica, during the last Glacial and the deglaciation derived by Rare Earth Element measurements in the EPICA-DML ice core |
author_facet |
Wegner, Anna Barbante, C. Cozzi, G. Delmonte, B. Dick, Dorothee Fischer, Hubertus Gabrielli, P. Gaspari, V. Kriews, Michael Ruth, Urs Stölting, Ilsetraut |
author_sort |
Wegner, Anna |
title |
Sources of dust in Dronning Maud Land, Antarctica, during the last Glacial and the deglaciation derived by Rare Earth Element measurements in the EPICA-DML ice core |
title_short |
Sources of dust in Dronning Maud Land, Antarctica, during the last Glacial and the deglaciation derived by Rare Earth Element measurements in the EPICA-DML ice core |
title_full |
Sources of dust in Dronning Maud Land, Antarctica, during the last Glacial and the deglaciation derived by Rare Earth Element measurements in the EPICA-DML ice core |
title_fullStr |
Sources of dust in Dronning Maud Land, Antarctica, during the last Glacial and the deglaciation derived by Rare Earth Element measurements in the EPICA-DML ice core |
title_full_unstemmed |
Sources of dust in Dronning Maud Land, Antarctica, during the last Glacial and the deglaciation derived by Rare Earth Element measurements in the EPICA-DML ice core |
title_sort |
sources of dust in dronning maud land, antarctica, during the last glacial and the deglaciation derived by rare earth element measurements in the epica-dml ice core |
publishDate |
2008 |
url |
https://epic.awi.de/id/eprint/18862/ https://hdl.handle.net/10013/epic.30539 |
geographic |
Antarctic Dronning Maud Land |
geographic_facet |
Antarctic Dronning Maud Land |
genre |
Antarc* Antarctic Antarctica DML Dronning Maud Land EPICA ice core |
genre_facet |
Antarc* Antarctic Antarctica DML Dronning Maud Land EPICA ice core |
op_source |
EPIC3EGU General Assembly, Vienna, Austria. April 2008., 13 |
op_relation |
Wegner, A. , Barbante, C. , Cozzi, G. , Delmonte, B. , Dick, D. , Fischer, H. , Gabrielli, P. , Gaspari, V. , Kriews, M. , Ruth, U. and Stölting, I. (2008) Sources of dust in Dronning Maud Land, Antarctica, during the last Glacial and the deglaciation derived by Rare Earth Element measurements in the EPICA-DML ice core , EGU General Assembly, Vienna, Austria. April 2008. . hdl:10013/epic.30539 |
_version_ |
1766124542058561536 |