Petrogenesis and tectonic setting of the Mesozoic Huoshenmiao intrusion in the Luanchuan ore district, Henan Province, North China

doi:10.1016/j.jseaes.2018.02.019

	Petrogenesis and tectonic setting of the Mesozoic Huoshenmiao intrusion in the Luanchuan ore district, Henan Province, North China
	Wang, Sai 1,2; Zhang, Ying 1,2; Zhang, Hui 1,2; Zhu, Aimei 1,2; Wang, Hongmin 1,2; Shi, Xuefa 1,2; Ye, Huishou 3; Yang, Yongqiang 4
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2018-07
卷号	160 页码:239-257
关键词	Geochronology Geochemistry Sr-Nd-Hf isotopes Huoshenmiao intrusion Luanchuan
ISSN号	1367-9120
DOI	10.1016/j.jseaes.2018.02.019
英文摘要	The Huoshenmiao intrusion, which is located in the western domain of the Luanchuan ore district, comprises quartz diorite, monzogranite, and granite porphyry. LA-(MC)-ICPMS zircon U-Pb dating, whole-rock geochemistry, and Sr-Nd-Hf isotopes were conducted to constrain the timing of magmatism, and to reveal the petrogenesis and tectonic setting. Zircon U-Pb dating of the quartz diorite, monzogranite, and granite porphyry yielded ages of 150.3 +/- 0.6 Ma, 146.0 +/- 0.6 Ma, and 145.1 +/- 0.5 Ma, respectively, indicating emplacement of the intrusion took place in the Late Jurassic. The three petrofacies are characterized by arc-like trace-element distribution, enriched in large ion lithophile elements and light rare earth elements, and depleted in high field strength elements. The quartz diorite is characterized by relatively low SiO2 content (56.79-61.96%), high Mg-# (0.44-0.46), and Na2O-rich (Na2O/K2O = 0.95-1.43). However, the monzogranite and granite porphyry are characterized by relatively high SiO2 content (69.70-71.96%), low Mg-# (0.23-0.28), and K2O-rich (K2O/Na2O = 1.20-1.93). The epsilon(Nd)(t) values of the quartz diorite range from - 14.6 to -14.1 and the epsilon(Hf)(t) values range from - 19.6 to -14.8, with model ages ranging from 2.09 to 2.44 Ga. The monzogranite and granite porphyry have epsilon(Nd)(t) values ranging from -16.8 to -14.7 and epsilon(Hf)(t) values in the range of - 31.9 to -16.7, with model ages ranging from 2.13 to 3.21 Ga. The differences in elemental and Sr-Nd-Hf isotopic characteristics suggest that the quartz diorite was derived from a different magma source from the monzogranite and granite porphyry. Based on these new data, we propose that the quartz diorite was derived from partial melting of an enriched lithospheric mantle that experienced metasomatism owing to dehydration of the subducted continental crust of the Yangtze Craton. The monzogranite and granite porphyry were derived from partial melting of the Taihua TTG and the enriched lithospheric mantle. Model calculations using Sr-Nd isotopic data suggest that 50-70% of enriched lithospheric mantle material would be required to generate the monzogranite and granite porphyry. We propose that the Huoshenmiao intrusion was most likely associate with two subduction events, and generated in a back-arc extensional setting related to the subduction of the Izanagi Plate beneath the Eurasian continental margin.
资助项目	basic research program of the First Institute of Oceanography[2015T02]
WOS关键词	ZIRCON U-PB ; TRONDHJEMITE-GRANODIORITE TTG ; ARCHEAN CRUSTAL EVOLUTION ; HF ISOTOPE GEOCHEMISTRY ; A-TYPE GRANITES ; I-TYPE GRANITES ; LU-HF ; SOUTHERN MARGIN ; TAIHUA COMPLEX ; MOLYBDENUM DEPOSITS
WOS研究方向	Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000434751500016
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25439]
专题	自然资源部第一海洋研究所
通讯作者	Ye, Huishou; Yang, Yongqiang
作者单位	1.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266071, Peoples R China 3.CAGS, Inst Mineral Resources, MLR Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China 4.China Univ Geosci, Sch Earth Sci & Resources, 29 Xueyuan Rd, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Wang, Sai,Zhang, Ying,Zhang, Hui,et al. Petrogenesis and tectonic setting of the Mesozoic Huoshenmiao intrusion in the Luanchuan ore district, Henan Province, North China[J]. JOURNAL OF ASIAN EARTH SCIENCES,2018,160:239-257.
APA	Wang, Sai.,Zhang, Ying.,Zhang, Hui.,Zhu, Aimei.,Wang, Hongmin.,...&Yang, Yongqiang.(2018).Petrogenesis and tectonic setting of the Mesozoic Huoshenmiao intrusion in the Luanchuan ore district, Henan Province, North China.JOURNAL OF ASIAN EARTH SCIENCES,160,239-257.
MLA	Wang, Sai,et al."Petrogenesis and tectonic setting of the Mesozoic Huoshenmiao intrusion in the Luanchuan ore district, Henan Province, North China".JOURNAL OF ASIAN EARTH SCIENCES 160(2018):239-257.