Equatorial Pacific seawater pCO(2) variability since the last glacial period

The ocean may have played a central role in the atmospheric pCO(2) rise during the last deglaciation. However, evidence on where carbon was exchanged between the ocean and the atmosphere in this period is still lacking, hampering our understanding of global carbon cycle on glacial–interglacial times...

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Autores principales: Kubota, Kaoru, Yokoyama, Yusuke, Ishikawa, Tsuyoshi, Sagawa, Takuya, Ikehara, Minoru, Yamazaki, Toshitsugu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6761199/
https://www.ncbi.nlm.nih.gov/pubmed/31554821
http://dx.doi.org/10.1038/s41598-019-49739-0
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author Kubota, Kaoru
Yokoyama, Yusuke
Ishikawa, Tsuyoshi
Sagawa, Takuya
Ikehara, Minoru
Yamazaki, Toshitsugu
author_facet Kubota, Kaoru
Yokoyama, Yusuke
Ishikawa, Tsuyoshi
Sagawa, Takuya
Ikehara, Minoru
Yamazaki, Toshitsugu
author_sort Kubota, Kaoru
collection PubMed
description The ocean may have played a central role in the atmospheric pCO(2) rise during the last deglaciation. However, evidence on where carbon was exchanged between the ocean and the atmosphere in this period is still lacking, hampering our understanding of global carbon cycle on glacial–interglacial timescales. Here we report a new surface seawater pCO(2) reconstruction for the western equatorial Pacific Ocean based on boron isotope analysis—a seawater pCO(2) proxy—using two species of near-surface dwelling foraminifera from the same marine sediment core. The results indicate that the region remained a modest CO(2) sink throughout the last deglaciation.
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spelling pubmed-67611992019-11-12 Equatorial Pacific seawater pCO(2) variability since the last glacial period Kubota, Kaoru Yokoyama, Yusuke Ishikawa, Tsuyoshi Sagawa, Takuya Ikehara, Minoru Yamazaki, Toshitsugu Sci Rep Article The ocean may have played a central role in the atmospheric pCO(2) rise during the last deglaciation. However, evidence on where carbon was exchanged between the ocean and the atmosphere in this period is still lacking, hampering our understanding of global carbon cycle on glacial–interglacial timescales. Here we report a new surface seawater pCO(2) reconstruction for the western equatorial Pacific Ocean based on boron isotope analysis—a seawater pCO(2) proxy—using two species of near-surface dwelling foraminifera from the same marine sediment core. The results indicate that the region remained a modest CO(2) sink throughout the last deglaciation. Nature Publishing Group UK 2019-09-25 /pmc/articles/PMC6761199/ /pubmed/31554821 http://dx.doi.org/10.1038/s41598-019-49739-0 Text en © The Author(s) 2019 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/.
spellingShingle Article
Kubota, Kaoru
Yokoyama, Yusuke
Ishikawa, Tsuyoshi
Sagawa, Takuya
Ikehara, Minoru
Yamazaki, Toshitsugu
Equatorial Pacific seawater pCO(2) variability since the last glacial period
title Equatorial Pacific seawater pCO(2) variability since the last glacial period
title_full Equatorial Pacific seawater pCO(2) variability since the last glacial period
title_fullStr Equatorial Pacific seawater pCO(2) variability since the last glacial period
title_full_unstemmed Equatorial Pacific seawater pCO(2) variability since the last glacial period
title_short Equatorial Pacific seawater pCO(2) variability since the last glacial period
title_sort equatorial pacific seawater pco(2) variability since the last glacial period
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6761199/
https://www.ncbi.nlm.nih.gov/pubmed/31554821
http://dx.doi.org/10.1038/s41598-019-49739-0
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