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

IOCAS-IR

	Genesis of High Ba-Sr Yashan Intrusion from the Jiaodong Peninsula,Eastern China:Implications for the Destruction of the North China Craton
	Guozhi Xie ; Lipeng Zhang ; Jie Li; Zhongyi Bao ; Kun Wang; Qian Chen; Li Wang ; Jingwei Wang
发表期刊	Journal of Earth Science
ISSN	1674-487X
	2021-12-03
出版年	2022
卷号	v.33 期号:03 页码:31-44
文献类型	CNKI期刊论文
摘要	The origin of the Mesozoic high Ba-Sr(HBS) granitic magmatism in the Jiaodong Peninsula remains controversial in petrogenesis models and geodynamic settings.Here,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 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 initial87 Sr/86 Sr ratios(0.709 6 – 0.710 3) and zircon δ18 O values(6.79‰–8.03‰).Contemporaneous mantle-derived mafic microgranular enclaves indicate the involvement of the metasomatized lithospheric mantle.The high magma oxygen fugacity of the Yashan intrusion as indicated by high zircon Ce4+/Ce3+values suggests the involvement of plate subduction.The 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 Craton.We propose that the Yashan HBS granodiorite was formed by crust-mantle interactions during slab rollback.
关键词	Yashan magmatic intrusion high Ba-Sr Jiaodong Peninsula crust-mantle interaction North China Craton
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A011;
CNKI专题名称	地质学;
分类号	P587;P542
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(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)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/187574
专题	中国科学院海洋研究所
作者单位	1.CenterofDeepSeaResearch,InstituteofOceanology,CenterforOceanMega-Science,ChineseAcademyofSciences 2.SchoolofMarineSciences,UniversityofChineseAcademyofSciences 3.LaboratoryforMarineMineralResources,PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao) 4.SchoolofResources,HebeiGEOUniversity 5.ShandongProvincialNo.6ExplorationInstituteofGeologyandMineralResources 6.RizhaoNaturalResourcesandPlanningBureau
推荐引用方式 GB/T 7714	Guozhi Xie,Lipeng Zhang,Jie Li,et al. Genesis of High Ba-Sr Yashan Intrusion from the Jiaodong Peninsula,Eastern China:Implications for the Destruction of the North China Craton. 2021.