{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Zhou ZB"],"funding":["MOE | Fundamental Research Funds for the Central Universities (Fundamental Research Fund for the Central Universities)","MOST | National Natural Science Foundation of China (NSFC)","MOST | National Natural Science Foundation of China","MOE | Fundamental Research Funds for the Central Universities"],"pagination":["e2414632122"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC11725906"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["122(1)"],"pubmed_abstract":["Subducted plates often stagnate in the mantle transition zone (MTZ), and the fate of the stagnant slabs is still debatable. They may sink into the lower mantle, or remain partially trapped in the MTZ, but it is uncertain whether they can return to the upper mantle. We report geochemical evidence of late-Miocene (~6 Ma) basalts from, and upper mantle seismic evidence beneath Shuangyashan, an area above the slab tear of the stagnant Pacific plate in eastern Asia, to show how the slab returns to the upper mantle from the MTZ. Remarkably high δ<sup>57</sup>Fe, Gd/Yb and low δ<sup>26</sup>Mg, Ti/Eu, CaO/Al<sub>2</sub>O<sub>3</sub> values of Shuangyashan basalts suggest that the subducted Pacific oceanic crust had been entrained to their upper mantle source. Therefore, the return of oceanic crus"],"journal":["Proceedings of the National Academy of Sciences of the United States of America"],"pubmed_title":["The return of stagnant slab recorded by intraplate volcanism."],"pmcid":["PMC11725906"],"funding_grant_id":["42130310","42322202","2024300389"],"pubmed_authors":["Chen LH","Bi YJ","Hofmann AW","Huang ZC","Zeng G","Zhao J","Zhou ZB","Wang XJ"],"additional_accession":[]},"is_claimable":false,"name":"The return of stagnant slab recorded by intraplate volcanism.","description":"Subducted plates often stagnate in the mantle transition zone (MTZ), and the fate of the stagnant slabs is still debatable. They may sink into the lower mantle, or remain partially trapped in the MTZ, but it is uncertain whether they can return to the upper mantle. We report geochemical evidence of late-Miocene (~6 Ma) basalts from, and upper mantle seismic evidence beneath Shuangyashan, an area above the slab tear of the stagnant Pacific plate in eastern Asia, to show how the slab returns to the upper mantle from the MTZ. Remarkably high δ<sup>57</sup>Fe, Gd/Yb and low δ<sup>26</sup>Mg, Ti/Eu, CaO/Al<sub>2</sub>O<sub>3</sub> values of Shuangyashan basalts suggest that the subducted Pacific oceanic crust had been entrained to their upper mantle source. Therefore, the return of oceanic crus","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Jan","modification":"2026-05-29T17:27:23.952Z","creation":"2026-04-08T05:36:58.833Z"},"accession":"S-EPMC11725906","cross_references":{"pubmed":["39793068"],"doi":["10.1073/pnas.2414632122"]}}