Lithium systematics in global arc magmas and the importance of crustal thickening for lithium enrichment

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dc.citation.articleNumber5313en_US
dc.citation.journalTitleNature Communicationsen_US
dc.citation.volumeNumber11en_US
dc.contributor.authorChen, Chenen_US
dc.contributor.authorLee, Cin-Ty A.en_US
dc.contributor.authorTang, Mingen_US
dc.contributor.authorBiddle, Kevinen_US
dc.contributor.authorSun, Weidongen_US
dc.date.accessioned2020-11-17T15:11:45Zen_US
dc.date.available2020-11-17T15:11:45Zen_US
dc.date.issued2020en_US
dc.description.abstractMuch of the world’s Li deposits occurs as basinal brines in magmatic orogens, particularly in continental volcanic arcs. However, the exact origin of Li enrichment in arc magmatic systems is not clear. Here, we show that, globally, primitive arc magmas have Li contents and Li/Y ratios similar to mid-ocean ridge basalts, indicating that the subducting slab has limited contribution to Li enrichment in arc magmas. Instead, we find that Li enrichment is enhanced by lower degrees of sub-arc mantle melting and higher extents of intracrustal differentiation. These enrichment effects are favored in arcs with thick crust, which explains why magmatism and differentiation in continental arcs, like the Andes, reach greater Li contents than their island arc counterparts. Weathering of these enriched source rocks mobilizes and transports such Li into the hydrologic system, ultimately developing Li brines with the combination of arid climate and the presence of landlocked extensional basins in thickened orogenic settings.en_US
dc.identifier.citationChen, Chen, Lee, Cin-Ty A., Tang, Ming, et al.. "Lithium systematics in global arc magmas and the importance of crustal thickening for lithium enrichment." <i>Nature Communications,</i> 11, (2020) Springer Nature: https://doi.org/10.1038/s41467-020-19106-z.en_US
dc.identifier.doihttps://doi.org/10.1038/s41467-020-19106-zen_US
dc.identifier.urihttps://hdl.handle.net/1911/109565en_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.titleLithium systematics in global arc magmas and the importance of crustal thickening for lithium enrichmenten_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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