Petrogenesis and metallogenic implications of Late Mesozoic intrusive rocks in the Tongling region, eastern China: a case study and perspective review

doi:10.1080/00206814.2017.1386130

QIBEBT-IR

	Petrogenesis and metallogenic implications of Late Mesozoic intrusive rocks in the Tongling region, eastern China: a case study and perspective review
	Xie, Jiancheng 1; Wang, Yu1 ; Li, Quanzhong 1; Yan, Jun1 ; Sun, Weidong 2,3,4
	2018
发表期刊	INTERNATIONAL GEOLOGY REVIEW
ISSN	0020-6814
卷号	60 期号:11-14 页码:1361-1380
摘要	Large-scale Cu-Au mineralization is associated with Late Mesozoic intrusive rocks in the Tongling region of eastern China, which mainly comprise pyroxene monzodiorite, quartz monzodiorite, and granodiorite. To constrain the petrogenesis of the intrusive rocks and Cu-Au mineralization, detailed analyses of the geochronology, apatite in situ geochemistry, whole-rock geochemistry, and zircon Hf isotopic compositions were performed. Magmatic zircons from pyroxene monzodiorites, quartz monzodiorites, and granodiorites yield U-Pb ages of 136-149Ma, 136-146Ma, and 138-152Ma, respectively, indicating that their formation ages are contemporaneous. Quartz monzodiorites and granodiorites (SiO2=57.9-69.5wt.%) are highly potassic calc-alkaline rocks with adakitic affinity and have low MgO and Y contents, low zircon epsilon(Hf)(t) values (-11.7 to -39.0), high apatite Cl contents (>0.2wt.%), and log fO(2) values (-23.2 to -8.23), indicating that they may have formed when metasomatized mantle-derived magmas mixed with slab-derived magmas before undergoing crustal assimilation and fractional crystallization. Pyroxene monzodiorites (SiO2=48.4-53.0wt.%) are shoshonitic and record high MgO, P2O5, and Y contents, high zircon epsilon(Hf)(t) values (1.55 to -7.87), high oxygen fugacity, low Nb and Ta contents, and low apatite Cl contents (mainly <0.2wt.%), suggesting that they were primarily derived from a metasomatized lithospheric mantle-derived magma that experienced the assimilation of lower crustal materials. The results indicate that the intrusive rocks and associated large-scale Cu-Au mineralization of the Tongling region resulted from the partial melting of the subducted oceanic slab in an oxidizing environment.
关键词	Petrogenesis apatite mantle-derived magma slab-derived magma Cu-Au mineralization Tongling region
DOI	10.1080/00206814.2017.1386130
关键词[WOS]	PORPHYRY COPPER-DEPOSITS ; YANGTZE-RIVER BELT ; CU-AU MINERALIZATION ; SHIZISHAN ORE-FIELD ; U-PB GEOCHRONOLOGY ; NIOBIUM-TANTALUM FRACTIONATION ; LOWER CONTINENTAL-CRUST ; NORTHERN DABIE COMPLEX ; THICKENED LOWER CRUST ; HF ISOTOPIC EVIDENCE
语种	英语
资助项目	National Natural Science Foundation of China[41373045] ; National Key R&D Program of China[2016YFC0600404]
WOS研究方向	Geology
项目资助者	National Natural Science Foundation of China ; National Key R&D Program of China
WOS类目	Geology
WOS记录号	WOS:000443879500003
出版者	TAYLOR & FRANCIS INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/11814
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Xie, Jiancheng
作者单位	1.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao, Peoples R China 4.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Xie, Jiancheng,Wang, Yu,Li, Quanzhong,et al. Petrogenesis and metallogenic implications of Late Mesozoic intrusive rocks in the Tongling region, eastern China: a case study and perspective review[J]. INTERNATIONAL GEOLOGY REVIEW,2018,60(11-14):1361-1380.
APA	Xie, Jiancheng,Wang, Yu,Li, Quanzhong,Yan, Jun,&Sun, Weidong.(2018).Petrogenesis and metallogenic implications of Late Mesozoic intrusive rocks in the Tongling region, eastern China: a case study and perspective review.INTERNATIONAL GEOLOGY REVIEW,60(11-14),1361-1380.
MLA	Xie, Jiancheng,et al."Petrogenesis and metallogenic implications of Late Mesozoic intrusive rocks in the Tongling region, eastern China: a case study and perspective review".INTERNATIONAL GEOLOGY REVIEW 60.11-14(2018):1361-1380.