Eu isotope fractionation and hydrothermal alteration
Abstract Europium (Eu) has two naturally stable isotopes (151Eu and 153Eu). The Eu anomalies produced by feldspar crystallization during magma differentiation have provided valuable geochemical information for understanding the evolutionary history of magma in the crust-mantle system. Recently, the...
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Nature Portfolio
2025-08-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-025-14613-9 |
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| author | Seung-Gu Lee ShuangShuang Chen Tae Jong Lee Hyeoncheol Kim Seung Ryeol Lee Sung Hi Choi Ung San Ahn Youn Soo Lee |
| author_facet | Seung-Gu Lee ShuangShuang Chen Tae Jong Lee Hyeoncheol Kim Seung Ryeol Lee Sung Hi Choi Ung San Ahn Youn Soo Lee |
| author_sort | Seung-Gu Lee |
| collection | DOAJ |
| description | Abstract Europium (Eu) has two naturally stable isotopes (151Eu and 153Eu). The Eu anomalies produced by feldspar crystallization during magma differentiation have provided valuable geochemical information for understanding the evolutionary history of magma in the crust-mantle system. Recently, the correlation between the degree of Eu isotope fractionation (δ153Eu) and the magnitude of the Eu anomaly produced by magma differentiation has received much attention as a new research field for understanding the evolution of the Earth system1–4. Here, we report large variation of Eu isotope ratio for geochemically mafic volcanic rocks from the Korean Peninsula and Ocean Drilling Program (ODP) site 801 C, western Pacific Ocean. The Eu isotope ratio in this work was determined precisely via multicollector inductively coupled plasma mass spectrometry using a Sm internal standard5–7. We find that the δ153Eu values of hydrothermally altered alkaline mafic volcanic rocks vary from − 0.65‰ to -0.1‰, in contrast to the narrow range that characterizes the primary fresh subalkaline mafic volcanic rocks (from − 0.1‰ to 0.1‰). Our findings indicate that Eu isotope fractionation can occur through not only magmatic differentiation but also hydrothermal reactions in the Earth system. |
| format | Article |
| id | doaj-art-a05cdcd20df9408891b1a9fa57b3da55 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Nature Portfolio |
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| spelling | doaj-art-a05cdcd20df9408891b1a9fa57b3da552025-08-20T04:01:51ZengNature PortfolioScientific Reports2045-23222025-08-011511910.1038/s41598-025-14613-9Eu isotope fractionation and hydrothermal alterationSeung-Gu Lee0ShuangShuang Chen1Tae Jong Lee2Hyeoncheol Kim3Seung Ryeol Lee4Sung Hi Choi5Ung San Ahn6Youn Soo Lee7Geological Survey Division, Korea Institute of Geoscience and Mineral ResourcesSchool of Earth Sciences and Engineering, Sun Yat-sen UniversityGeological Safety Division, Korea Institute of Geoscience and Mineral ResourcesGeological Survey Division, Korea Institute of Geoscience and Mineral ResourcesGeological Survey Division, Korea Institute of Geoscience and Mineral ResourcesDepartment of Geological Sciences, Chungnam National UniversityJeju Special Self-Governing Province, World Heritage OfficeDivision of Environmental Science and Engineering, Pohang University of Science and TechnologyAbstract Europium (Eu) has two naturally stable isotopes (151Eu and 153Eu). The Eu anomalies produced by feldspar crystallization during magma differentiation have provided valuable geochemical information for understanding the evolutionary history of magma in the crust-mantle system. Recently, the correlation between the degree of Eu isotope fractionation (δ153Eu) and the magnitude of the Eu anomaly produced by magma differentiation has received much attention as a new research field for understanding the evolution of the Earth system1–4. Here, we report large variation of Eu isotope ratio for geochemically mafic volcanic rocks from the Korean Peninsula and Ocean Drilling Program (ODP) site 801 C, western Pacific Ocean. The Eu isotope ratio in this work was determined precisely via multicollector inductively coupled plasma mass spectrometry using a Sm internal standard5–7. We find that the δ153Eu values of hydrothermally altered alkaline mafic volcanic rocks vary from − 0.65‰ to -0.1‰, in contrast to the narrow range that characterizes the primary fresh subalkaline mafic volcanic rocks (from − 0.1‰ to 0.1‰). Our findings indicate that Eu isotope fractionation can occur through not only magmatic differentiation but also hydrothermal reactions in the Earth system.https://doi.org/10.1038/s41598-025-14613-9 |
| spellingShingle | Seung-Gu Lee ShuangShuang Chen Tae Jong Lee Hyeoncheol Kim Seung Ryeol Lee Sung Hi Choi Ung San Ahn Youn Soo Lee Eu isotope fractionation and hydrothermal alteration Scientific Reports |
| title | Eu isotope fractionation and hydrothermal alteration |
| title_full | Eu isotope fractionation and hydrothermal alteration |
| title_fullStr | Eu isotope fractionation and hydrothermal alteration |
| title_full_unstemmed | Eu isotope fractionation and hydrothermal alteration |
| title_short | Eu isotope fractionation and hydrothermal alteration |
| title_sort | eu isotope fractionation and hydrothermal alteration |
| url | https://doi.org/10.1038/s41598-025-14613-9 |
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