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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Online Access: | https://resolver.sub.uni-goettingen.de/purl?gro-2/58894 https://resolver.sub.uni-goettingen.de/purl?gs-1/14540 https://doi.org/10.1038/ncomms15702 |
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ftsubgoettingen:oai:publications.goettingen-research-online.de:2/58894 2023-09-05T13:13:55+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 https://resolver.sub.uni-goettingen.de/purl?gro-2/58894 https://resolver.sub.uni-goettingen.de/purl?gs-1/14540 https://doi.org/10.1038/ncomms15702 en eng 2041-1723 https://resolver.sub.uni-goettingen.de/purl?gro-2/58894 doi:10.1038/ncomms15702 28569769 https://resolver.sub.uni-goettingen.de/purl?gs-1/14540 CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ 550 journal_article yes published_version 2017 ftsubgoettingen https://doi.org/10.1038/ncomms15702 2023-08-20T22:14:08Z 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. Article in Journal/Newspaper Antarc* Antarctica Georg-August-Universität Göttingen: GoeScholar Nature Communications 8 1 |
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Open Polar |
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Georg-August-Universität Göttingen: GoeScholar |
op_collection_id |
ftsubgoettingen |
language |
English |
topic |
550 |
spellingShingle |
550 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 |
550 |
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 |
Article in Journal/Newspaper |
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 |
publishDate |
2017 |
url |
https://resolver.sub.uni-goettingen.de/purl?gro-2/58894 https://resolver.sub.uni-goettingen.de/purl?gs-1/14540 https://doi.org/10.1038/ncomms15702 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
2041-1723 https://resolver.sub.uni-goettingen.de/purl?gro-2/58894 doi:10.1038/ncomms15702 28569769 https://resolver.sub.uni-goettingen.de/purl?gs-1/14540 |
op_rights |
CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1038/ncomms15702 |
container_title |
Nature Communications |
container_volume |
8 |
container_issue |
1 |
_version_ |
1776205028742135808 |