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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Online Access: | https://hdl.handle.net/11590/468659 https://doi.org/10.3390/condmat3030025 |
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ftunivroma3iris:oai:iris.uniroma3.it:11590/468659 2024-04-28T08:02:40+00:00 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) Baccolo, Giovanni Cibin, Giannantonio Delmonte, Barbara Hampai, Dariush Marcelli, Augusto Di Stefano, Elena Macis, Salvatore Maggi, Valter Baccolo, Giovanni Cibin, Giannantonio Delmonte, Barbara Hampai, Dariush Marcelli, Augusto Di Stefano, Elena Macis, Salvatore Maggi, Valter 2018 https://hdl.handle.net/11590/468659 https://doi.org/10.3390/condmat3030025 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000445304300005 volume:3 issue:3 firstpage:1 lastpage:12 numberofpages:12 journal:CONDENSED MATTER https://hdl.handle.net/11590/468659 doi:10.3390/condmat3030025 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85059552140 atmospheric mineral dust ice core Antarctica paleoclimate synchrotron radiation X-ray absorption near edge spectroscopy X-ray fluorescence iron geochemistry info:eu-repo/semantics/article 2018 ftunivroma3iris https://doi.org/10.3390/condmat3030025 2024-04-02T16:59:54Z 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 Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) Condensed Matter 3 3 25 |
institution |
Open Polar |
collection |
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) |
op_collection_id |
ftunivroma3iris |
language |
English |
topic |
atmospheric mineral dust ice core Antarctica paleoclimate synchrotron radiation X-ray absorption near edge spectroscopy X-ray fluorescence iron geochemistry |
spellingShingle |
atmospheric mineral dust ice core Antarctica paleoclimate synchrotron radiation X-ray absorption near edge spectroscopy X-ray fluorescence iron geochemistry Baccolo, Giovanni Cibin, Giannantonio Delmonte, Barbara Hampai, Dariush Marcelli, Augusto Di Stefano, Elena Macis, Salvatore Maggi, Valter 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 |
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. |
author2 |
Baccolo, Giovanni Cibin, Giannantonio Delmonte, Barbara Hampai, Dariush Marcelli, Augusto Di Stefano, Elena Macis, Salvatore Maggi, Valter |
format |
Article in Journal/Newspaper |
author |
Baccolo, Giovanni Cibin, Giannantonio Delmonte, Barbara Hampai, Dariush Marcelli, Augusto Di Stefano, Elena Macis, Salvatore Maggi, Valter |
author_facet |
Baccolo, Giovanni Cibin, Giannantonio Delmonte, Barbara Hampai, Dariush Marcelli, Augusto Di Stefano, Elena Macis, Salvatore Maggi, Valter |
author_sort |
Baccolo, Giovanni |
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) |
publishDate |
2018 |
url |
https://hdl.handle.net/11590/468659 https://doi.org/10.3390/condmat3030025 |
genre |
Antarc* Antarctic Antarctica East Antarctica ice core |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica ice core |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000445304300005 volume:3 issue:3 firstpage:1 lastpage:12 numberofpages:12 journal:CONDENSED MATTER https://hdl.handle.net/11590/468659 doi:10.3390/condmat3030025 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85059552140 |
op_doi |
https://doi.org/10.3390/condmat3030025 |
container_title |
Condensed Matter |
container_volume |
3 |
container_issue |
3 |
container_start_page |
25 |
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1797573955062595584 |