Genesis of High Ba-Sr Yashan Intrusion from the Jiaodong Peninsula,Eastern China:Implications for the Destruction of the North China Craton

作     者：Guozhi Xie Lipeng Zhang Jie Li Zhongyi Bao Kun Wang Qian Chen Li Wang Jingwei Wang Guozhi Xie;Lipeng Zhang;Jie Li;Zhongyi Bao;Kun Wang;Qian Chen;Li Wang;Jingwei Wang

作者机构：Center of Deep Sea ResearchInstitute of OceanologyCenter for Ocean Mega-ScienceChinese Academy of SciencesQingdao 266071China Laboratory for Marine Mineral ResourcesPilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China School of Marine SciencesUniversity of Chinese Academy of SciencesBeijing 100049China School of ResourcesHebei GEO UniversityShijiazhuang 050031China Shandong Provincial No.6 Exploration Institute of Geology and Mineral ResourcesWeihai 264209China Rizhao Natural Resources and Planning BureauRizhao 276800China 

出 版 物：《Journal of Earth Science》 (地球科学学刊（英文版）)

年 卷 期：2022年第33卷第3期

页      面：567-580页

核心收录：

学科分类：070904[理学-构造地质学] 0709[理学-地质学] 070901[理学-矿物学、岩石学、矿床学] 07[理学] 

基　　金：supported by the National Key R&D Program of China(No.2016YFC0600408) the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB42020203) 

主　　题：Yashan magmatic intrusion high Ba-Sr Jiaodong Peninsula crust-mantle interaction North China Craton 

摘      要：The origin of the Mesozoic high Ba-Sr(HBS)granitic magmatism in the Jiaodong Peninsula remains controversial in petrogenesis models and geodynamic ***,we report zircon UPb age,trace element and oxygen isotope compositions,and whole-rock major-trace element and Sr-Nd isotope compositions of the HBS Yashan *** zircon U-Pb age of~118 Ma denotes that the Yashan granodiorite belongs to the Weideshan-stage magmatic activity,which is consistent with the age of Mo mineralization in the Yashan *** low Sr/Y(48.8-115)and high(La/Yb)_(N)(23.8-50.4)ratios of the Yashan granodiorite are analogous to adakitic features derived from the *** is also supported by the whole-rock initial^(87)Sr/^(86)Sr ratios(0.7096-0.7103)and zircon δ^(18) O values(6.79‰-8.03‰).Contemporaneous mantle-derived mafic microgranular enclaves indicate the involvement of the metasomatized lithospheric *** high magma oxygen fugacity of the Yashan intrusion as indicated by high zircon Ce^(4+)/Ce^(3+) values suggests the involvement of plate *** obviously lower Dy/Yb,La/Yb and Sr/Y ratios of magmatic rocks in the Weideshan-stage than those in the early-stage imply lithospheric thinning of the eastern North China *** propose that the Yashan HBS granodiorite was formed by crust-mantle interactions during slab rollback.