Tectonic setting and mineralization potential of the Zefreh porphyry Cu-Mo deposit, central Iran: Constraints from petrographic and geochemical data

doi:10.1016/j.gexplo.2019.01.001

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院矿产资源研究重点实验室

	Tectonic setting and mineralization potential of the Zefreh porphyry Cu-Mo deposit, central Iran: Constraints from petrographic and geochemical data
	Khosravi, Maryam 1; Rajabzadeh, Mohammad Ali 1; Qin, KeZhang 2,3; Asadi, Hooshang H.4
刊名	JOURNAL OF GEOCHEMICAL EXPLORATION
	2019-04-01
卷号	199 页码:1-15
关键词	Zefreh porphyry Cu-Mo deposit Normal calc-alkaline magma Geochemistry Petrography Tectonics
ISSN号	0375-6742
DOI	10.1016/j.gexplo.2019.01.001
英文摘要	The Zefreh porphyry Cu-Mo deposit is located in the central part of the Cenozoic Urumieh-Dokhtar Magmatic Arc (UDMA), 75 km NE of Isfahan city, central Iran. The Zefreh rocks, ranging from diorite to granodiorite in composition, formed in a subduction-related arc setting, and likely in a pre-plate collisional environment. They are enriched in Th, U, Rb, Pb, light rare earth elements (LREE), but depleted in Ti, Nb, Ta, Ba, Sr, and P. Negative to slightly positive Eu anomalies (0.5-1.1), low to moderate Sr contents, (189-567 ppm), low to moderate Sr/Y ratios (5-23), and low La/Yb ratios (3-8) in the Zefreh magmatic suite rule out considerable amounts of fractionated amphibole from a hydrous magma in the lower crust. Arc crustal thickness in the Zefreh area was probably < 40 km at the time of emplacement of the granitoids, under which amphibole did not fractionate considerably from the primitive magma. Melting of garnet-free lower-crustal amphibolites, together with fractional crystallization and crustal assimilation processes may be the main source of the Zefreh granitoids. On the basis of geochemical characteristics of the granitoids (e.g., low to moderate Sr contents, moderate to high contents of Y and Yb, low to moderate ratios of Sr/Y and Dy/Yb, low La/Yb ratios, negative to slightly positive Eu anomalies, and negative anomalies of Sr) and immature arc with thin crust, the Zefreh deposit is likely to be a small, sub-economic porphyry Cu-Mo deposit.
资助项目	Research Council of Shiraz University
WOS关键词	SANANDAJ-SIRJAN ZONE ; ZIRCON U-PB ; CALC-ALKALINE ; CONTINENTAL COLLISION ; GEODYNAMIC EVOLUTION ; COPPER-DEPOSITS ; VOLCANIC-ROCKS ; ARC ; SUBDUCTION ; MAGMAS
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000458515700001
资助机构	Research Council of Shiraz University ; Research Council of Shiraz University ; Research Council of Shiraz University ; Research Council of Shiraz University ; Research Council of Shiraz University ; Research Council of Shiraz University ; Research Council of Shiraz University ; Research Council of Shiraz University
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/90702]
专题	地质与地球物理研究所_中国科学院矿产资源研究重点实验室
通讯作者	Rajabzadeh, Mohammad Ali
作者单位	1.Shiraz Univ, Fac Sci, Dept Earth Sci, Shiraz, Iran 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Isfahan Univ Technol, Dept Min Engn, Esfahan 8415683111, Iran
推荐引用方式 GB/T 7714	Khosravi, Maryam,Rajabzadeh, Mohammad Ali,Qin, KeZhang,et al. Tectonic setting and mineralization potential of the Zefreh porphyry Cu-Mo deposit, central Iran: Constraints from petrographic and geochemical data[J]. JOURNAL OF GEOCHEMICAL EXPLORATION,2019,199:1-15.
APA	Khosravi, Maryam,Rajabzadeh, Mohammad Ali,Qin, KeZhang,&Asadi, Hooshang H..(2019).Tectonic setting and mineralization potential of the Zefreh porphyry Cu-Mo deposit, central Iran: Constraints from petrographic and geochemical data.JOURNAL OF GEOCHEMICAL EXPLORATION,199,1-15.
MLA	Khosravi, Maryam,et al."Tectonic setting and mineralization potential of the Zefreh porphyry Cu-Mo deposit, central Iran: Constraints from petrographic and geochemical data".JOURNAL OF GEOCHEMICAL EXPLORATION 199(2019):1-15.