Continuous plate subduction marked by the rise of alkali magmatism 2.1 billion years ago

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dc.citation.articleNumber3408en_US
dc.citation.journalTitleNature Communicationsen_US
dc.citation.volumeNumber10en_US
dc.contributor.authorLiu, Heen_US
dc.contributor.authorSun, Wei-dongen_US
dc.contributor.authorZartman, Roberten_US
dc.contributor.authorTang, Mingen_US
dc.date.accessioned2021-10-06T14:15:53Zen_US
dc.date.available2021-10-06T14:15:53Zen_US
dc.date.issued2019en_US
dc.description.abstractOver the Earth’s evolutionary history, the style of plate subduction has evolved through time due to the secular cooling of the mantle. While continuous subduction is a typical feature of modern plate tectonics, a stagnant-lid tectonic regime with localized episodic subduction likely characterized the early Earth. The timing of the transition between these two subduction styles bears important insights into Earth’s cooling history. Here we apply a statistical analysis to a large geochemical dataset of mafic rocks spanning the last 3.5 Ga, which shows an increasing magnitude of alkali basaltic magmatism beginning at ca. 2.1 Ga. We propose that the rapid rise of continental alkali basalts correlates with an abruptly decreasing degree of mantle melting resulting from the enhanced cooling of the mantle at ca. 2.1 Ga. This might be a consequence of the initiation of continuous subduction, which recycled increasing volumes of cold oceanic crust into the mantle.en_US
dc.identifier.citationLiu, He, Sun, Wei-dong, Zartman, Robert, et al.. "Continuous plate subduction marked by the rise of alkali magmatism 2.1 billion years ago." <i>Nature Communications,</i> 10, (2019) Springer Nature: https://doi.org/10.1038/s41467-019-11329-z.en_US
dc.identifier.digitals41467-019-11329-zen_US
dc.identifier.doihttps://doi.org/10.1038/s41467-019-11329-zen_US
dc.identifier.urihttps://hdl.handle.net/1911/111490en_US
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.rightsThis 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.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleContinuous plate subduction marked by the rise of alkali magmatism 2.1 billion years agoen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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