Zircon geochronology and Hf isotope geochemistry of the ultramafic rocks from the Habaqin complex in northern Hebei Province, China: Implication for the activities and sources of the magma

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	Zircon geochronology and Hf isotope geochemistry of the ultramafic rocks from the Habaqin complex in northern Hebei Province, China: Implication for the activities and sources of the magma
	Li LiXing 4; Li HouMin ; Wang DeZhong 1; Yang XiuQing ; Liu MingJun 2; Chen Jing ; Yao Tong
刊名	ACTA PETROLOGICA SINICA
	2014
卷号	30 期号:5 页码:1472-1484
关键词	Iron deposit Ultramafic rocks Mantle-derived magma Extension setting Northern Hebei Province
ISSN号	1000-0569
英文摘要	The Chengde area in Hebei Province is the most important magmatic iron ore-concentrated district in North China, with a proven resource reserve of ca. 1 billion tons. The iron mineralization in Chengde area has been lasted from Neoarchean to Paleozoic. The banded iron formations at Neoarchean, the Damiao-type iron deposits at Mesoproterozoic and the Habaqin iron deposit at Late Paleozoic are typical in general. All of them were products related with mafic-ultramafic complexs that formed at tectonic setting of regional extension, and thus providing good examples for metallogenic pedigree study and further exploration. All of the iron-bearing mafic-ultramafic complexes form long linear arrays and occur along the E-W striking Hongshila-Damiao fault. LA-ICP-MS zircon U-Pb ages of three samples of hornblendites in the Habaqin ultramafic complex show that the emplacement age of the ultramafic complex was 406 +/- 2Ma, which occurred at Devonian, implying that the geodynamic setting of the magmatism had occurred at post-collisional extensional setting after the arc-continental collision between the Bainaimiao arc belt and the northern margin of the North China Craton. As constrained by abundant inherited ages of this study as well as previous studies, the mafic-ultramafic magmatism along the Hongshila-Damiao fault were related to extensional setting and mainly occurred at Paleo-Mesoproterozoic, Devonian, Late Carboniferous-Early Permain, and Late Triassic. As constrained from comparative study of Hf isotope data of zircons, all of the t(DM2) ages of the zircons aged at Neoarchean, Mesoproterozoic and Paleozoic are concentrated within the range from 2. 9Ga to 2. 7Ga. A similar result has been identified in the epsilon(Hf)(t)-age diagram, plots of the epsilon(Hf)(t) and corresponding zircon U-Pb age values form long linear arrays which coincide with the evolution line at the range of 2. 9 similar to 2. 7Ga. Therefore, the ore-forming materials of the mineralization of iron in Chengde were initially from a mantle source or mafic lower crust which formed at 2. 9 similar to 2. 7Ga.
学科主题	火成岩岩石学
WOS关键词	DAMIAO ANORTHOSITE COMPLEX ; U-PB AGES ; GEOLOGICAL SIGNIFICANCE ; LASER-ABLATION ; EASTERN HEBEI ; LU-HF ; CRATON ; PETROGENESIS ; CONSTRAINTS ; EVOLUTION
WOS研究方向	Geology
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000337205700020
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40404]
专题	中国地质科学院矿产资源研究所
作者单位	1.Chinese Acad Geol Sci, Inst Mineral Resources, MLR Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China 2.4th Geol Team Hebei Geol & Min Bur, Chengde 067000, Peoples R China 3.Liaoning Bur Metallurg Geol Explorat, Inst Geol Explorat, Anshan 114002, Peoples R China 4.中国地质科学院矿产资源研究所
推荐引用方式 GB/T 7714	Li LiXing,Li HouMin,Wang DeZhong,et al. Zircon geochronology and Hf isotope geochemistry of the ultramafic rocks from the Habaqin complex in northern Hebei Province, China: Implication for the activities and sources of the magma[J]. ACTA PETROLOGICA SINICA,2014,30(5):1472-1484.
APA	Li LiXing.,Li HouMin.,Wang DeZhong.,Yang XiuQing.,Liu MingJun.,...&Yao Tong.(2014).Zircon geochronology and Hf isotope geochemistry of the ultramafic rocks from the Habaqin complex in northern Hebei Province, China: Implication for the activities and sources of the magma.ACTA PETROLOGICA SINICA,30(5),1472-1484.
MLA	Li LiXing,et al."Zircon geochronology and Hf isotope geochemistry of the ultramafic rocks from the Habaqin complex in northern Hebei Province, China: Implication for the activities and sources of the magma".ACTA PETROLOGICA SINICA 30.5(2014):1472-1484.