On the coevolution of Ediacaran oceans and animals
Fe speciation and S-isotope of pyrite data from the terminal Proterozoic Sheepbed Formation in Canada and Doushantuo Formation in China reveal that ocean deep waters were anoxic after the global glaciations (snowball Earth) ending 635 million years ago, but that marine sulfate concentrations and inf...
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ftpubmed:oai:pubmedcentral.nih.gov:2375388 2023-05-15T17:21:49+02:00 On the coevolution of Ediacaran oceans and animals Shen, Yanan Zhang, Tonggang Hoffman, Paul F. 2008-05-27 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2375388 http://www.ncbi.nlm.nih.gov/pubmed/18469138 https://doi.org/10.1073/pnas.0802168105 en eng National Academy of Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2375388 http://www.ncbi.nlm.nih.gov/pubmed/18469138 http://dx.doi.org/10.1073/pnas.0802168105 © 2008 by The National Academy of Sciences of the USA Freely available online through the PNAS open access option. Physical Sciences Text 2008 ftpubmed https://doi.org/10.1073/pnas.0802168105 2013-09-01T21:55:38Z Fe speciation and S-isotope of pyrite data from the terminal Proterozoic Sheepbed Formation in Canada and Doushantuo Formation in China reveal that ocean deep waters were anoxic after the global glaciations (snowball Earth) ending 635 million years ago, but that marine sulfate concentrations and inferentially atmospheric oxygen levels were higher than before the glaciations. This supports a long-postulated link between oxygen levels and the emergence of eumetazoa. Subsequent ventilation of the deep ocean, inferred from shifts in Fe speciation in Newfoundland (previously published data) and western Canada (this report), paved the way for Ediacaran macrobiota to colonize the deep seafloors. Text Newfoundland PubMed Central (PMC) Canada Proceedings of the National Academy of Sciences 105 21 7376 7381 |
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PubMed Central (PMC) |
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English |
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Physical Sciences |
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Physical Sciences Shen, Yanan Zhang, Tonggang Hoffman, Paul F. On the coevolution of Ediacaran oceans and animals |
topic_facet |
Physical Sciences |
description |
Fe speciation and S-isotope of pyrite data from the terminal Proterozoic Sheepbed Formation in Canada and Doushantuo Formation in China reveal that ocean deep waters were anoxic after the global glaciations (snowball Earth) ending 635 million years ago, but that marine sulfate concentrations and inferentially atmospheric oxygen levels were higher than before the glaciations. This supports a long-postulated link between oxygen levels and the emergence of eumetazoa. Subsequent ventilation of the deep ocean, inferred from shifts in Fe speciation in Newfoundland (previously published data) and western Canada (this report), paved the way for Ediacaran macrobiota to colonize the deep seafloors. |
format |
Text |
author |
Shen, Yanan Zhang, Tonggang Hoffman, Paul F. |
author_facet |
Shen, Yanan Zhang, Tonggang Hoffman, Paul F. |
author_sort |
Shen, Yanan |
title |
On the coevolution of Ediacaran oceans and animals |
title_short |
On the coevolution of Ediacaran oceans and animals |
title_full |
On the coevolution of Ediacaran oceans and animals |
title_fullStr |
On the coevolution of Ediacaran oceans and animals |
title_full_unstemmed |
On the coevolution of Ediacaran oceans and animals |
title_sort |
on the coevolution of ediacaran oceans and animals |
publisher |
National Academy of Sciences |
publishDate |
2008 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2375388 http://www.ncbi.nlm.nih.gov/pubmed/18469138 https://doi.org/10.1073/pnas.0802168105 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2375388 http://www.ncbi.nlm.nih.gov/pubmed/18469138 http://dx.doi.org/10.1073/pnas.0802168105 |
op_rights |
© 2008 by The National Academy of Sciences of the USA Freely available online through the PNAS open access option. |
op_doi |
https://doi.org/10.1073/pnas.0802168105 |
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Proceedings of the National Academy of Sciences |
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105 |
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21 |
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7376 |
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7381 |
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1766107589466128384 |