Widespread reworking of Hadean-to-Eoarchean continents during Earth’s thermal peak
The nature and evolution of Earth’s crust during the Hadean and Eoarchean is largely unknown owing to a paucity of material preserved from this period. However, clues may be found in the chemical composition of refractory minerals that initially grew in primordial material but were subsequently inco...
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ftpubmed:oai:pubmedcentral.nih.gov:7803784 2023-05-15T16:29:11+02:00 Widespread reworking of Hadean-to-Eoarchean continents during Earth’s thermal peak Kirkland, C. L. Hartnady, M. I. H. Barham, M. Olierook, H. K. H. Steenfelt, A. Hollis, J. A. 2021-01-12 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7803784/ http://www.ncbi.nlm.nih.gov/pubmed/33436605 https://doi.org/10.1038/s41467-020-20514-4 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7803784/ http://www.ncbi.nlm.nih.gov/pubmed/33436605 http://dx.doi.org/10.1038/s41467-020-20514-4 © The Author(s) 2021 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/. CC-BY Nat Commun Article Text 2021 ftpubmed https://doi.org/10.1038/s41467-020-20514-4 2021-01-24T01:25:59Z The nature and evolution of Earth’s crust during the Hadean and Eoarchean is largely unknown owing to a paucity of material preserved from this period. However, clues may be found in the chemical composition of refractory minerals that initially grew in primordial material but were subsequently incorporated into younger rocks and sediment during lithospheric reworking. Here we report Hf isotopic data in 3.9 to 1.8 billion year old detrital zircon from modern stream sediment samples from West Greenland, which document successive reworking of felsic Hadean-to-Eoarchean crust during subsequent periods of magmatism. Combined with global zircon Hf data, we show a planetary shift towards, on average, more juvenile Hf values 3.2 to 3.0 billion years ago. This crustal rejuvenation was coincident with peak mantle potential temperatures that imply greater degrees of mantle melting and injection of hot mafic-ultramafic magmas into older Hadean-to-Eoarchean felsic crust at this time. Given the repeated recognition of felsic Hadean-to-Eoarchean diluted signatures, ancient crust appears to have acted as buoyant life-rafts with enhanced preservation-potential that facilitated later rapid crustal growth during the Meso-and-Neoarchean. Text Greenland PubMed Central (PMC) Greenland Nature Communications 12 1 |
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Article Kirkland, C. L. Hartnady, M. I. H. Barham, M. Olierook, H. K. H. Steenfelt, A. Hollis, J. A. Widespread reworking of Hadean-to-Eoarchean continents during Earth’s thermal peak |
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The nature and evolution of Earth’s crust during the Hadean and Eoarchean is largely unknown owing to a paucity of material preserved from this period. However, clues may be found in the chemical composition of refractory minerals that initially grew in primordial material but were subsequently incorporated into younger rocks and sediment during lithospheric reworking. Here we report Hf isotopic data in 3.9 to 1.8 billion year old detrital zircon from modern stream sediment samples from West Greenland, which document successive reworking of felsic Hadean-to-Eoarchean crust during subsequent periods of magmatism. Combined with global zircon Hf data, we show a planetary shift towards, on average, more juvenile Hf values 3.2 to 3.0 billion years ago. This crustal rejuvenation was coincident with peak mantle potential temperatures that imply greater degrees of mantle melting and injection of hot mafic-ultramafic magmas into older Hadean-to-Eoarchean felsic crust at this time. Given the repeated recognition of felsic Hadean-to-Eoarchean diluted signatures, ancient crust appears to have acted as buoyant life-rafts with enhanced preservation-potential that facilitated later rapid crustal growth during the Meso-and-Neoarchean. |
format |
Text |
author |
Kirkland, C. L. Hartnady, M. I. H. Barham, M. Olierook, H. K. H. Steenfelt, A. Hollis, J. A. |
author_facet |
Kirkland, C. L. Hartnady, M. I. H. Barham, M. Olierook, H. K. H. Steenfelt, A. Hollis, J. A. |
author_sort |
Kirkland, C. L. |
title |
Widespread reworking of Hadean-to-Eoarchean continents during Earth’s thermal peak |
title_short |
Widespread reworking of Hadean-to-Eoarchean continents during Earth’s thermal peak |
title_full |
Widespread reworking of Hadean-to-Eoarchean continents during Earth’s thermal peak |
title_fullStr |
Widespread reworking of Hadean-to-Eoarchean continents during Earth’s thermal peak |
title_full_unstemmed |
Widespread reworking of Hadean-to-Eoarchean continents during Earth’s thermal peak |
title_sort |
widespread reworking of hadean-to-eoarchean continents during earth’s thermal peak |
publisher |
Nature Publishing Group UK |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7803784/ http://www.ncbi.nlm.nih.gov/pubmed/33436605 https://doi.org/10.1038/s41467-020-20514-4 |
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Greenland |
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Greenland |
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Greenland |
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Nat Commun |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7803784/ http://www.ncbi.nlm.nih.gov/pubmed/33436605 http://dx.doi.org/10.1038/s41467-020-20514-4 |
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© The Author(s) 2021 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/. |
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https://doi.org/10.1038/s41467-020-20514-4 |
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Nature Communications |
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12 |
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