University of Oulu

Liu, J., Xia, QK., Kuritani, T. et al. Mantle hydration and the role of water in the generation of large igneous provinces. Nat Commun 8, 1824 (2017). https://doi.org/10.1038/s41467-017-01940-3

Mantle hydration and the role of water in the generation of large igneous provinces

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Author: Liu, Jia1,2; Xia, Qun-Ke1; Kuritani, Takeshi3;
Organizations: 1School of Earth Sciences, Zhejiang University, Hangzhou, 310027, China
2School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
3Graduate School of Science, Hokkaido University, Sapporo, 060-0810, Japan
4Oulu Mining School, University of Oulu, P.O. Box 3000, 90014, Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.5 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe202103248174
Language: English
Published: Springer Nature, 2017
Publish Date: 2021-03-24
Description:

Abstract

The genesis of large igneous provinces (LIP) is controlled by multiple factors including anomalous mantle temperatures, the presence of fusible fertile components and volatiles in the mantle source, and the extent of decompression. The lack of a comprehensive examination of all these factors in one specific LIP makes the mantle plume model debatable. Here, we report estimates of the water content in picrites from the Emeishan LIP in southwestern China. Although these picrites display an island arc-like H2O content (up to 3.4 by weight percent), the trace element characteristics do not support a subduction zone setting but point to a hydrous reservoir in the deep mantle. Combining with previous studies, we propose that hydrous and hot plumes occasionally appeared in the Phanerozoic era to produce continental LIPs (e.g., Tarim, Siberian Trap, Karoo). The wide sampling of hydrous reservoirs in the deep mantle by mantle plumes thus indicates that the Earth’s interior is largely hydrated.

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Series: Nature communications
ISSN: 2041-1723
ISSN-E: 2041-1723
ISSN-L: 2041-1723
Volume: 8
Pages: 1 - 7
Article number: 1824
DOI: 10.1038/s41467-017-01940-3
OADOI: https://oadoi.org/10.1038/s41467-017-01940-3
Type of Publication: A1 Journal article – refereed
Field of Science: 1171 Geosciences
Subjects:
Funding: This study was supported by the Strategic Priority Research Program (B) of Chinese Academy of Sciences (grant no. XDB18000000), the National Natural Science Foundation of China (grant nos. 41630205 and 41772049) and Academy of Finland (grant no. 281859).
Academy of Finland Grant Number: 281859
Detailed Information: 281859 (Academy of Finland Funding decision)
Copyright information: © The Author(s) 2017. 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 Commonslicense, unless indicated otherwise in a credit line to the material. If material is not included in the article’sCreative 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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