Stretching the envelope of past surface environments: Neoproterozoic glacial lakes from Svalbard
The oxygen isotope composition of terrestrial sulfate is affected measurably by many Earth-surface processes. During the Neoproterozoic, severe "snowball" glaciations would have had an extreme impact on the biosphere and the atmosphere. Here, we report that sulfate extracted from carbonate...
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ftlouisianastuir:oai:digitalcommons.lsu.edu:geo_pubs-1074 2023-06-11T04:17:11+02:00 Stretching the envelope of past surface environments: Neoproterozoic glacial lakes from Svalbard Bao, Huiming Fairchild, Ian J. Wynn, Peter M. Spötl, Christoph 2009-01-02T08:00:00Z application/pdf https://digitalcommons.lsu.edu/geo_pubs/75 https://doi.org/10.1126/science.1165373 https://digitalcommons.lsu.edu/context/geo_pubs/article/1074/viewcontent/75.pdf unknown LSU Digital Commons https://digitalcommons.lsu.edu/geo_pubs/75 doi:10.1126/science.1165373 https://digitalcommons.lsu.edu/context/geo_pubs/article/1074/viewcontent/75.pdf Faculty Publications text 2009 ftlouisianastuir https://doi.org/10.1126/science.1165373 2023-05-28T18:24:17Z The oxygen isotope composition of terrestrial sulfate is affected measurably by many Earth-surface processes. During the Neoproterozoic, severe "snowball" glaciations would have had an extreme impact on the biosphere and the atmosphere. Here, we report that sulfate extracted from carbonate lenses within a Neoproterozoic glacial diamictite suite from Svalbard, with an age of ∼635 million years ago, falls well outside the currently known natural range of triple oxygen isotope compositions and indicates that the atmosphere had either an exceptionally high atmospheric carbon dioxide concentration or an utterly unfamiliar oxygen cycle during deposition of the diamictites. Text Svalbard LSU Digital Commons (Louisiana State University) Svalbard Science 323 5910 119 122 |
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LSU Digital Commons (Louisiana State University) |
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ftlouisianastuir |
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unknown |
description |
The oxygen isotope composition of terrestrial sulfate is affected measurably by many Earth-surface processes. During the Neoproterozoic, severe "snowball" glaciations would have had an extreme impact on the biosphere and the atmosphere. Here, we report that sulfate extracted from carbonate lenses within a Neoproterozoic glacial diamictite suite from Svalbard, with an age of ∼635 million years ago, falls well outside the currently known natural range of triple oxygen isotope compositions and indicates that the atmosphere had either an exceptionally high atmospheric carbon dioxide concentration or an utterly unfamiliar oxygen cycle during deposition of the diamictites. |
format |
Text |
author |
Bao, Huiming Fairchild, Ian J. Wynn, Peter M. Spötl, Christoph |
spellingShingle |
Bao, Huiming Fairchild, Ian J. Wynn, Peter M. Spötl, Christoph Stretching the envelope of past surface environments: Neoproterozoic glacial lakes from Svalbard |
author_facet |
Bao, Huiming Fairchild, Ian J. Wynn, Peter M. Spötl, Christoph |
author_sort |
Bao, Huiming |
title |
Stretching the envelope of past surface environments: Neoproterozoic glacial lakes from Svalbard |
title_short |
Stretching the envelope of past surface environments: Neoproterozoic glacial lakes from Svalbard |
title_full |
Stretching the envelope of past surface environments: Neoproterozoic glacial lakes from Svalbard |
title_fullStr |
Stretching the envelope of past surface environments: Neoproterozoic glacial lakes from Svalbard |
title_full_unstemmed |
Stretching the envelope of past surface environments: Neoproterozoic glacial lakes from Svalbard |
title_sort |
stretching the envelope of past surface environments: neoproterozoic glacial lakes from svalbard |
publisher |
LSU Digital Commons |
publishDate |
2009 |
url |
https://digitalcommons.lsu.edu/geo_pubs/75 https://doi.org/10.1126/science.1165373 https://digitalcommons.lsu.edu/context/geo_pubs/article/1074/viewcontent/75.pdf |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
Svalbard |
genre_facet |
Svalbard |
op_source |
Faculty Publications |
op_relation |
https://digitalcommons.lsu.edu/geo_pubs/75 doi:10.1126/science.1165373 https://digitalcommons.lsu.edu/context/geo_pubs/article/1074/viewcontent/75.pdf |
op_doi |
https://doi.org/10.1126/science.1165373 |
container_title |
Science |
container_volume |
323 |
container_issue |
5910 |
container_start_page |
119 |
op_container_end_page |
122 |
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1768376111629074432 |