Tracing the oxygen isotope composition of the upper Earth's atmosphere using cosmic spherules

Molten I-type cosmic spherules formed by heating, oxidation and melting of extraterrestrial Fe,Ni metal alloys. The entire oxygen in these spherules sources from the atmosphere. Therefore, I-type cosmic spherules are suitable tracers for the isotopic composition of the upper atmosphere at altitudes...

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Published in:Nature Communications
Main Authors: Pack, Andreas, Höweling, Andres, Hezel, Dominik C., Stefanak, Maren T., Beck, Anne-Katrin, Peters, Stefan T. M., Sengupta, Sukanya, Herwartz, Daniel, Folco, Luigi
Format: Text
Language:English
Published: Nature Publishing Group 2017
Subjects:
Article
Antarc*
Antarctica
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5461487/
http://www.ncbi.nlm.nih.gov/pubmed/28569769
https://doi.org/10.1038/ncomms15702
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spelling ftpubmed:oai:pubmedcentral.nih.gov:5461487 2023-05-15T13:51:59+02:00 Tracing the oxygen isotope composition of the upper Earth's atmosphere using cosmic spherules Pack, Andreas Höweling, Andres Hezel, Dominik C. Stefanak, Maren T. Beck, Anne-Katrin Peters, Stefan T. M. Sengupta, Sukanya Herwartz, Daniel Folco, Luigi 2017-06-01 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5461487/ http://www.ncbi.nlm.nih.gov/pubmed/28569769 https://doi.org/10.1038/ncomms15702 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5461487/ http://www.ncbi.nlm.nih.gov/pubmed/28569769 http://dx.doi.org/10.1038/ncomms15702 Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ CC-BY Article Text 2017 ftpubmed https://doi.org/10.1038/ncomms15702 2017-06-18T00:09:57Z Molten I-type cosmic spherules formed by heating, oxidation and melting of extraterrestrial Fe,Ni metal alloys. The entire oxygen in these spherules sources from the atmosphere. Therefore, I-type cosmic spherules are suitable tracers for the isotopic composition of the upper atmosphere at altitudes between 80 and 115 km. Here we present data on I-type cosmic spherules collected in Antarctica. Their composition is compared with the composition of tropospheric O2. Our data suggest that the Earth's atmospheric O2 is isotopically homogenous up to the thermosphere. This makes fossil I-type micrometeorites ideal proxies for ancient atmospheric CO2 levels. Text Antarc* Antarctica PubMed Central (PMC) Nature Communications 8 1
institution Open Polar
collection PubMed Central (PMC)
op_collection_id ftpubmed
language English
topic Article
spellingShingle Article
Pack, Andreas
Höweling, Andres
Hezel, Dominik C.
Stefanak, Maren T.
Beck, Anne-Katrin
Peters, Stefan T. M.
Sengupta, Sukanya
Herwartz, Daniel
Folco, Luigi
Tracing the oxygen isotope composition of the upper Earth's atmosphere using cosmic spherules
topic_facet Article
description Molten I-type cosmic spherules formed by heating, oxidation and melting of extraterrestrial Fe,Ni metal alloys. The entire oxygen in these spherules sources from the atmosphere. Therefore, I-type cosmic spherules are suitable tracers for the isotopic composition of the upper atmosphere at altitudes between 80 and 115 km. Here we present data on I-type cosmic spherules collected in Antarctica. Their composition is compared with the composition of tropospheric O2. Our data suggest that the Earth's atmospheric O2 is isotopically homogenous up to the thermosphere. This makes fossil I-type micrometeorites ideal proxies for ancient atmospheric CO2 levels.
format Text
author Pack, Andreas
Höweling, Andres
Hezel, Dominik C.
Stefanak, Maren T.
Beck, Anne-Katrin
Peters, Stefan T. M.
Sengupta, Sukanya
Herwartz, Daniel
Folco, Luigi
author_facet Pack, Andreas
Höweling, Andres
Hezel, Dominik C.
Stefanak, Maren T.
Beck, Anne-Katrin
Peters, Stefan T. M.
Sengupta, Sukanya
Herwartz, Daniel
Folco, Luigi
author_sort Pack, Andreas
title Tracing the oxygen isotope composition of the upper Earth's atmosphere using cosmic spherules
title_short Tracing the oxygen isotope composition of the upper Earth's atmosphere using cosmic spherules
title_full Tracing the oxygen isotope composition of the upper Earth's atmosphere using cosmic spherules
title_fullStr Tracing the oxygen isotope composition of the upper Earth's atmosphere using cosmic spherules
title_full_unstemmed Tracing the oxygen isotope composition of the upper Earth's atmosphere using cosmic spherules
title_sort tracing the oxygen isotope composition of the upper earth's atmosphere using cosmic spherules
publisher Nature Publishing Group
publishDate 2017
url http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5461487/
http://www.ncbi.nlm.nih.gov/pubmed/28569769
https://doi.org/10.1038/ncomms15702
genre Antarc*
Antarctica
genre_facet Antarc*
Antarctica
op_relation http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5461487/
http://www.ncbi.nlm.nih.gov/pubmed/28569769
http://dx.doi.org/10.1038/ncomms15702
op_rights Copyright © 2017, The Author(s)
http://creativecommons.org/licenses/by/4.0/
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
op_rightsnorm CC-BY
op_doi https://doi.org/10.1038/ncomms15702
container_title Nature Communications
container_volume 8
container_issue 1
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