The Contribution of Synchrotron Light for the Characterization of Atmospheric Mineral Dust in Deep Ice Cores: Preliminary Results from the Talos Dome Ice Core (East Antarctica)
The possibility of finding a stratigraphically intact ice sequence with a potential basal age exceeding one million years in Antarctica is giving renewed interest to deep ice coring operations. But the older and deeper the ice, the more impactful are the post-depositional processes that alter and mo...
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ftdoajarticles:oai:doaj.org/article:4ce54ccf66e04c379f53789d36383282 2023-05-15T13:56:52+02:00 The Contribution of Synchrotron Light for the Characterization of Atmospheric Mineral Dust in Deep Ice Cores: Preliminary Results from the Talos Dome Ice Core (East Antarctica) Giovanni Baccolo Giannantonio Cibin Barbara Delmonte Dariush Hampai Augusto Marcelli Elena Di Stefano Salvatore Macis Valter Maggi 2018-08-01T00:00:00Z https://doi.org/10.3390/condmat3030025 https://doaj.org/article/4ce54ccf66e04c379f53789d36383282 EN eng MDPI AG http://www.mdpi.com/2410-3896/3/3/25 https://doaj.org/toc/2410-3896 2410-3896 doi:10.3390/condmat3030025 https://doaj.org/article/4ce54ccf66e04c379f53789d36383282 Condensed Matter, Vol 3, Iss 3, p 25 (2018) atmospheric mineral dust ice core Antarctica paleoclimate synchrotron radiation X-ray absorption near edge spectroscopy X-ray fluorescence iron geochemistry Physics QC1-999 article 2018 ftdoajarticles https://doi.org/10.3390/condmat3030025 2022-12-30T23:35:36Z The possibility of finding a stratigraphically intact ice sequence with a potential basal age exceeding one million years in Antarctica is giving renewed interest to deep ice coring operations. But the older and deeper the ice, the more impactful are the post-depositional processes that alter and modify the information entrapped within ice layers. Understanding in situ post-depositional processes occurring in the deeper part of ice cores is essential to comprehend how the climatic signals are preserved in deep ice, and consequently how to construct the paleoclimatic records. New techniques and new interpretative tools are required for these purposes. In this respect, the application of synchrotron light to microgram-sized atmospheric dust samples extracted from deep ice cores is extremely promising. We present here preliminary results on two sets of samples retrieved from the Talos Dome Antarctic ice core. A first set is composed by samples from the stratigraphically intact upper part of the core, the second by samples retrieved from the deeper part of the core that is still undated. Two techniques based on synchrotron light allowed us to characterize the dust samples, showing that mineral particles entrapped in the deepest ice layers display altered elemental composition and anomalies concerning iron geochemistry, besides being affected by inter-particle aggregation. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica ice core Directory of Open Access Journals: DOAJ Articles Antarctic East Antarctica Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) Condensed Matter 3 3 25 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
atmospheric mineral dust ice core Antarctica paleoclimate synchrotron radiation X-ray absorption near edge spectroscopy X-ray fluorescence iron geochemistry Physics QC1-999 |
spellingShingle |
atmospheric mineral dust ice core Antarctica paleoclimate synchrotron radiation X-ray absorption near edge spectroscopy X-ray fluorescence iron geochemistry Physics QC1-999 Giovanni Baccolo Giannantonio Cibin Barbara Delmonte Dariush Hampai Augusto Marcelli Elena Di Stefano Salvatore Macis Valter Maggi The Contribution of Synchrotron Light for the Characterization of Atmospheric Mineral Dust in Deep Ice Cores: Preliminary Results from the Talos Dome Ice Core (East Antarctica) |
topic_facet |
atmospheric mineral dust ice core Antarctica paleoclimate synchrotron radiation X-ray absorption near edge spectroscopy X-ray fluorescence iron geochemistry Physics QC1-999 |
description |
The possibility of finding a stratigraphically intact ice sequence with a potential basal age exceeding one million years in Antarctica is giving renewed interest to deep ice coring operations. But the older and deeper the ice, the more impactful are the post-depositional processes that alter and modify the information entrapped within ice layers. Understanding in situ post-depositional processes occurring in the deeper part of ice cores is essential to comprehend how the climatic signals are preserved in deep ice, and consequently how to construct the paleoclimatic records. New techniques and new interpretative tools are required for these purposes. In this respect, the application of synchrotron light to microgram-sized atmospheric dust samples extracted from deep ice cores is extremely promising. We present here preliminary results on two sets of samples retrieved from the Talos Dome Antarctic ice core. A first set is composed by samples from the stratigraphically intact upper part of the core, the second by samples retrieved from the deeper part of the core that is still undated. Two techniques based on synchrotron light allowed us to characterize the dust samples, showing that mineral particles entrapped in the deepest ice layers display altered elemental composition and anomalies concerning iron geochemistry, besides being affected by inter-particle aggregation. |
format |
Article in Journal/Newspaper |
author |
Giovanni Baccolo Giannantonio Cibin Barbara Delmonte Dariush Hampai Augusto Marcelli Elena Di Stefano Salvatore Macis Valter Maggi |
author_facet |
Giovanni Baccolo Giannantonio Cibin Barbara Delmonte Dariush Hampai Augusto Marcelli Elena Di Stefano Salvatore Macis Valter Maggi |
author_sort |
Giovanni Baccolo |
title |
The Contribution of Synchrotron Light for the Characterization of Atmospheric Mineral Dust in Deep Ice Cores: Preliminary Results from the Talos Dome Ice Core (East Antarctica) |
title_short |
The Contribution of Synchrotron Light for the Characterization of Atmospheric Mineral Dust in Deep Ice Cores: Preliminary Results from the Talos Dome Ice Core (East Antarctica) |
title_full |
The Contribution of Synchrotron Light for the Characterization of Atmospheric Mineral Dust in Deep Ice Cores: Preliminary Results from the Talos Dome Ice Core (East Antarctica) |
title_fullStr |
The Contribution of Synchrotron Light for the Characterization of Atmospheric Mineral Dust in Deep Ice Cores: Preliminary Results from the Talos Dome Ice Core (East Antarctica) |
title_full_unstemmed |
The Contribution of Synchrotron Light for the Characterization of Atmospheric Mineral Dust in Deep Ice Cores: Preliminary Results from the Talos Dome Ice Core (East Antarctica) |
title_sort |
contribution of synchrotron light for the characterization of atmospheric mineral dust in deep ice cores: preliminary results from the talos dome ice core (east antarctica) |
publisher |
MDPI AG |
publishDate |
2018 |
url |
https://doi.org/10.3390/condmat3030025 https://doaj.org/article/4ce54ccf66e04c379f53789d36383282 |
long_lat |
ENVELOPE(158.000,158.000,-73.000,-73.000) |
geographic |
Antarctic East Antarctica Talos Dome |
geographic_facet |
Antarctic East Antarctica Talos Dome |
genre |
Antarc* Antarctic Antarctica East Antarctica ice core |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica ice core |
op_source |
Condensed Matter, Vol 3, Iss 3, p 25 (2018) |
op_relation |
http://www.mdpi.com/2410-3896/3/3/25 https://doaj.org/toc/2410-3896 2410-3896 doi:10.3390/condmat3030025 https://doaj.org/article/4ce54ccf66e04c379f53789d36383282 |
op_doi |
https://doi.org/10.3390/condmat3030025 |
container_title |
Condensed Matter |
container_volume |
3 |
container_issue |
3 |
container_start_page |
25 |
_version_ |
1766264459967332352 |