High heat flow and ocean acidification at a nascent rift in the northern Gulf of California
The prevailing tectonic setting in the Gulf California suggests the presence of an undetermined number of short spreading centres with associated hydrothermal systems. However, to date, active seafloor spreading phenomena have been documented in only three of the eight tectonically active basins. He...
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ftpubmed:oai:pubmedcentral.nih.gov:3562453 2023-05-15T17:51:10+02:00 High heat flow and ocean acidification at a nascent rift in the northern Gulf of California Prol-Ledesma, Rosa Ma Torres-Vera, Marco-Antonio Rodolfo-Metalpa, Riccardo Ángeles, Catalina Lechuga Deveze, Carlos H. Villanueva-Estrada, Ruth Esther Shumilin, Evgueni Robinson, Carlos 2013-01-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3562453 http://www.ncbi.nlm.nih.gov/pubmed/23340428 https://doi.org/10.1038/ncomms2390 en eng Nature Pub. Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3562453 http://www.ncbi.nlm.nih.gov/pubmed/23340428 http://dx.doi.org/10.1038/ncomms2390 Copyright © 2013, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by-nc-sa/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ CC-BY-NC-SA Article Text 2013 ftpubmed https://doi.org/10.1038/ncomms2390 2013-09-04T19:21:03Z The prevailing tectonic setting in the Gulf California suggests the presence of an undetermined number of short spreading centres with associated hydrothermal systems. However, to date, active seafloor spreading phenomena have been documented in only three of the eight tectonically active basins. Here we report heat flow values as high as 15,436 mW m−2 in two of the northernmost basins of the Gulf of California, providing evidence of intense hydrothermal activity associated with the transition from continental rifting to seafloor spreading. The mean heat flow for the Wagner and Consag basins area is 1,875 mW m−2, more than 15 times higher than the mean value for oceanic crust (105.4 mW m−2). Additional evidence for vigorous hydrothermal circulation and a shallow heat source includes intense gas discharge (CO2 and CH4), widespread low pH (average 7.7), locally high 222Rn concentrations in the bottom water and a high extent of organic matter maturation in the sediments. Text Ocean acidification PubMed Central (PMC) Nature Communications 4 1 |
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Article Prol-Ledesma, Rosa Ma Torres-Vera, Marco-Antonio Rodolfo-Metalpa, Riccardo Ángeles, Catalina Lechuga Deveze, Carlos H. Villanueva-Estrada, Ruth Esther Shumilin, Evgueni Robinson, Carlos High heat flow and ocean acidification at a nascent rift in the northern Gulf of California |
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The prevailing tectonic setting in the Gulf California suggests the presence of an undetermined number of short spreading centres with associated hydrothermal systems. However, to date, active seafloor spreading phenomena have been documented in only three of the eight tectonically active basins. Here we report heat flow values as high as 15,436 mW m−2 in two of the northernmost basins of the Gulf of California, providing evidence of intense hydrothermal activity associated with the transition from continental rifting to seafloor spreading. The mean heat flow for the Wagner and Consag basins area is 1,875 mW m−2, more than 15 times higher than the mean value for oceanic crust (105.4 mW m−2). Additional evidence for vigorous hydrothermal circulation and a shallow heat source includes intense gas discharge (CO2 and CH4), widespread low pH (average 7.7), locally high 222Rn concentrations in the bottom water and a high extent of organic matter maturation in the sediments. |
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Text |
author |
Prol-Ledesma, Rosa Ma Torres-Vera, Marco-Antonio Rodolfo-Metalpa, Riccardo Ángeles, Catalina Lechuga Deveze, Carlos H. Villanueva-Estrada, Ruth Esther Shumilin, Evgueni Robinson, Carlos |
author_facet |
Prol-Ledesma, Rosa Ma Torres-Vera, Marco-Antonio Rodolfo-Metalpa, Riccardo Ángeles, Catalina Lechuga Deveze, Carlos H. Villanueva-Estrada, Ruth Esther Shumilin, Evgueni Robinson, Carlos |
author_sort |
Prol-Ledesma, Rosa Ma |
title |
High heat flow and ocean acidification at a nascent rift in the northern Gulf of California |
title_short |
High heat flow and ocean acidification at a nascent rift in the northern Gulf of California |
title_full |
High heat flow and ocean acidification at a nascent rift in the northern Gulf of California |
title_fullStr |
High heat flow and ocean acidification at a nascent rift in the northern Gulf of California |
title_full_unstemmed |
High heat flow and ocean acidification at a nascent rift in the northern Gulf of California |
title_sort |
high heat flow and ocean acidification at a nascent rift in the northern gulf of california |
publisher |
Nature Pub. Group |
publishDate |
2013 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3562453 http://www.ncbi.nlm.nih.gov/pubmed/23340428 https://doi.org/10.1038/ncomms2390 |
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Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3562453 http://www.ncbi.nlm.nih.gov/pubmed/23340428 http://dx.doi.org/10.1038/ncomms2390 |
op_rights |
Copyright © 2013, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by-nc-sa/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ |
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CC-BY-NC-SA |
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https://doi.org/10.1038/ncomms2390 |
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Nature Communications |
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4 |
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1 |
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1766158229816999936 |