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Tectonic setting and mineralization potential of the Zefreh porphyry Cu-Mo deposit, central Iran: Constraints from petrographic and geochemical data
Khosravi, Maryam1; Rajabzadeh, Mohammad Ali1; Qin, KeZhang2,3; Asadi, Hooshang H.4
2019-04-01
Source PublicationJOURNAL OF GEOCHEMICAL EXPLORATION
ISSN0375-6742
Volume199Pages:1-15
AbstractThe 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.
KeywordZefreh porphyry Cu-Mo deposit Normal calc-alkaline magma Geochemistry Petrography Tectonics
DOI10.1016/j.gexplo.2019.01.001
Funding OrganizationResearch 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
WOS KeywordSANANDAJ-SIRJAN ZONE ; ZIRCON U-PB ; CALC-ALKALINE ; CONTINENTAL COLLISION ; GEODYNAMIC EVOLUTION ; COPPER-DEPOSITS ; VOLCANIC-ROCKS ; ARC ; SUBDUCTION ; MAGMAS
Language英语
Funding ProjectResearch Council of Shiraz University
Funding OrganizationResearch 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
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000458515700001
PublisherELSEVIER SCIENCE BV
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Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/90702
Collection矿产资源研究院重点实验室
Corresponding AuthorRajabzadeh, Mohammad Ali
Affiliation1.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
Recommended Citation
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.
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