典型文献
Genesis of High Ba-Sr Yashan Intrusion from the Jiaodong Peninsula,Eastern China:Implications for the Destruction of the North China Craton
文献摘要：
The origin of the Mesozoic high Ba-Sr(HBS)granitic magmatism in the Jiaodong Penin-sula remains controversial in petrogenesis models and geodynamic settings.Here,we report zircon U-Pb age,trace element and oxygen isotope compositions,and whole-rock major-trace element and Sr-Nd isotope compositions of the HBS Yashan granodiorite.The 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 intrusion.The 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 lower-crust.This is also supported by the whole-rock initial 87Sr/86Sr ratios(0.709 6-0.710 3)and zircon 618O values(6.79‰-8.03‰).Contemporaneous mantle-derived mafic microgranular enclaves indicate the involve-ment of the metasomatized lithospheric mantle.The high magma oxygen fugacity of the Yashan intru-sion as indicated by high zircon Ce4+/Ce3+values suggests the involvement of plate subduction.The obvi-ously 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 Craton.We propose that the Yashan HBS granodiorite was formed by crust-mantle interactions during slab rollback.
文献关键词：
中图分类号：
作者姓名：
Guozhi Xie;Lipeng Zhang;Jie Li;Zhongyi Bao;Kun Wang;Qian Chen;Li Wang;Jingwei Wang
作者机构：
Center of Deep Sea Research,Institute of Oceanology,Center for Ocean Mega-Science,Chinese Academy of Sciences,Qingdao 266071,China;School of Marine Sciences,University of Chinese Academy of Sciences,Beijing 100049,China;Laboratory for Marine Mineral Resources,Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China;School of Resources,Hebei GEO University,Shijiazhuang 050031,China;Shandong Provincial No.6 Exploration Institute of Geology and Mineral Resources,Weihai 264209,China;Rizhao Natural Resources and Planning Bureau,Rizhao 276800,China
文献出处：
引用格式：
[1]Guozhi Xie;Lipeng Zhang;Jie Li;Zhongyi Bao;Kun Wang;Qian Chen;Li Wang;Jingwei Wang-.Genesis of High Ba-Sr Yashan Intrusion from the Jiaodong Peninsula,Eastern China:Implications for the Destruction of the North China Craton)[J].地球科学学刊（英文版）,2022(03):567-580
A类：
Yashan,Penin,sula,Weideshan,618O,Contemporaneous,microgranular,intru,Ce3+values
B类：
Genesis,High,Ba,Intrusion,from,Jiaodong,Peninsula,Eastern,China,Implications,Destruction,North,Craton,origin,Mesozoic,high,HBS,granitic,magmatism,remains,controversial,petrogenesis,models,geodynamic,settings,Here,report,zircon,Pb,trace,element,oxygen,isotope,compositions,whole,major,Nd,granodiorite,Ma,denotes,that,belongs,stage,magmatic,activity,which,consistent,Mo,mineralization,intrusion,La,Yb,ratios,are,analogous,adakitic,features,derived,lower,crust,This,also,supported,by,initial,87Sr,86Sr,mantle,mafic,enclaves,metasomatized,lithospheric,fugacity,indicated,Ce4+,suggests,involvement,plate,subduction,obvi,ously,Dy,rocks,than,those,early,imply,thinning,eastern,propose,was,formed,interactions,during,slab,rollback
AB值：
0.476932
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
