Whole rock geochemistry, molybdenite Re-Os geochronology, stable isotope and fluid inclusion investigations of the Siah-Kamar deposit, western Alborz-Azarbayjan: New constrains on the porphyry Mo deposit in Iran

doi:10.1016/j.oregeorev.2017.08.030

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 > 岩石圈演化国家重点实验室

	Whole rock geochemistry, molybdenite Re-Os geochronology, stable isotope and fluid inclusion investigations of the Siah-Kamar deposit, western Alborz-Azarbayjan: New constrains on the porphyry Mo deposit in Iran
	Nabatian, Ghasem 1; Wan, Bo 2,3; Honarmand, Maryam 4
刊名	ORE GEOLOGY REVIEWS
	2017-12-01
卷号	91 页码:638-659
关键词	Porphyry Molybdenum Mineralization Molybdenite Re-os Dating Microthermometry Stable Isotope Western Alborz-azarbayjan Magmatic Belt Iran
ISSN号	0169-1368
DOI	10.1016/j.oregeorev.2017.08.030
文献子类	Article
英文摘要	The Siah-Kamar porphyry Mo deposit, located in the western Alborz-Azarbayjan magmatic belt, is the first and largest Mo deposit in the Iran. This deposit is mainly hosted by an I-type, shoshonitic quartz monzonite to monzonite intrusion and also extends in the surrounding lower to middle Eocene volcanic rocks. The geochemical features of the Siah-Kamar intrusion show enrichment in large-ion lithophile elements (LILE) and light rare earth elements (LREE), and significant negative anomalies of Nb, Ta and Ti analogues to the magmas derived from metasomatized sub-continental mantle. Porphyry molybdenum mineralization is associated with potassic, sericitic, argillic, and propylitic alteration zones. Mineralization occurs in disseminated form, in veins/ veinlets and in hydrothermal breccias. The main ore minerals comprise molybdenite, chalcopyrite and bornite. The Microthermometric analyses at Siah-Kamar deposit showed that the halite-bearing inclusions contain high salinity (30.9-60.7 wt% NaCl eq.) with homogenization temperature ranging from 226 degrees C to 397 degrees C. The homogenization temperature of two phase liquid-rich inclusions range between 224 degrees C and 375 degrees C. The salinity of this type inclusions range from 0.6 to 7.5 wt% NaCl equivalent. The two-phase vapor-rich fluid inclusions homogenized at 270 degrees C to 397 degrees C. The salinity of this type fluid inclusions lie within the range of 0.6 to 4.24 wt% NaCl equivalent. Coexisting two phase V-rich and L-rich fluid inclusions in quartz associated with molybdenite provide evidence for boiling at 270 degrees C to 400 degrees C. The delta O-18(water) values of quartz in the molybdenite-bearing veins vary from + 2.16 to + 4.05%o, suggesting a magmatic origin for the ore-forming fluids. Re-Os isotopic dating of molybdenite indicated a mineralization age of 41.9 +/- 3.6 Ma. The Re concentration in molybdenite suggests incorporation of mantle derived melt with crustal materials. The late Eocene magmatism along the western Alborz-Azarbayjan magmatic zone resulted from the Neo-Tethys subduction beneath the Iranian plateau. The Siah-Kamar monzonitic intrusion hosting the Mo deposit, could be considered as an example among the late Eocene intrusions within the western Alborz-Azarbayjan magmatic zone for any further exploration in this zone.
WOS关键词	U-PB ZIRCON ; A-TYPE GRANITES ; CU-MO ; COPPER-DEPOSITS ; MAGMATIC BELT ; EASTERN IRAN ; NW IRAN ; HYDROTHERMAL ALTERATION ; CONTINENTAL COLLISION ; TECTONIC EVOLUTION
WOS研究方向	Geology ; Mineralogy ; Mining & Mineral Processing
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000418978300035
资助机构	CAS(XDB03010801) ; CAS(XDB03010801) ; NSFC(41672085) ; NSFC(41672085) ; SKLLE of IGGCAS(201503) ; SKLLE of IGGCAS(201503) ; CAS(XDB03010801) ; CAS(XDB03010801) ; NSFC(41672085) ; NSFC(41672085) ; SKLLE of IGGCAS(201503) ; SKLLE of IGGCAS(201503) ; CAS(XDB03010801) ; CAS(XDB03010801) ; NSFC(41672085) ; NSFC(41672085) ; SKLLE of IGGCAS(201503) ; SKLLE of IGGCAS(201503) ; CAS(XDB03010801) ; CAS(XDB03010801) ; NSFC(41672085) ; NSFC(41672085) ; SKLLE of IGGCAS(201503) ; SKLLE of IGGCAS(201503)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/93152]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者	Nabatian, Ghasem
作者单位	1.Univ Zanjan, Dept Geol, Fac Sci, Zanjan 45195313, Iran 2.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.IASBS, Dept Earth Sci, POB 45195-1159, Zanjan, Iran
推荐引用方式 GB/T 7714	Nabatian, Ghasem,Wan, Bo,Honarmand, Maryam. Whole rock geochemistry, molybdenite Re-Os geochronology, stable isotope and fluid inclusion investigations of the Siah-Kamar deposit, western Alborz-Azarbayjan: New constrains on the porphyry Mo deposit in Iran[J]. ORE GEOLOGY REVIEWS,2017,91:638-659.
APA	Nabatian, Ghasem,Wan, Bo,&Honarmand, Maryam.(2017).Whole rock geochemistry, molybdenite Re-Os geochronology, stable isotope and fluid inclusion investigations of the Siah-Kamar deposit, western Alborz-Azarbayjan: New constrains on the porphyry Mo deposit in Iran.ORE GEOLOGY REVIEWS,91,638-659.
MLA	Nabatian, Ghasem,et al."Whole rock geochemistry, molybdenite Re-Os geochronology, stable isotope and fluid inclusion investigations of the Siah-Kamar deposit, western Alborz-Azarbayjan: New constrains on the porphyry Mo deposit in Iran".ORE GEOLOGY REVIEWS 91(2017):638-659.