Sources of ore-forming fluids and materials of the Baogutu porphyry copper deposit in Xinjiang Constraints from sulfur-hydrogen-oxygen isotopes geochemistry

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	Sources of ore-forming fluids and materials of the Baogutu porphyry copper deposit in Xinjiang Constraints from sulfur-hydrogen-oxygen isotopes geochemistry
	Zhang, ZX (Zhang ZhiXin); Yang, FQ (Yang FuQuan); Yan, SH (Yan ShengHao); Zhang, R (Zhang Rui); Chai, FM (Chai FengMei); Liu, F (Liu Feng); Geng, XX (Geng XinXia)
刊名	ACTA PETROLOGICA SINICA
	2010
卷号	26 期号:3 页码:707-716
关键词	Stable isotopes Ore-forming fulid Porphyry copper deposit Baogutu Xinjiang
ISSN号	1000-0569
英文摘要	The Baogutu large-scale porphyry copper deposit is located in the west margin of Junggar basin. Copper mineralization which mainly occurs as disseminated and veinlet- disseminated, is hosted by porphyritic ( quartz) diorite, diorite porphyrite, crypto-explosive breccia, minor in granodiorite. Based on cross-cutting relationships and mineral assemblages of the ore veins, the ore-forming process underwent three stages as follows; Biotite-potassic feldspar-albite stage, quartz-sulfide stage and quartz carbonate stage. The delta D(SMOW) values of quartz vein range from - 107 parts per thousand to - 86 parts per thousand, and the delta(18) O(SMOW) values range from 11.3 parts per thousand to 16.2 parts per thousand, with corresponding delta(18)O(H2O) values range from 4.4 parts per thousand to 9.3 parts per thousand. The combined isotopic data suggested that the ore-forming fluids were derived from deep-seated source magmatic water. The delta(34)S values of sulfide range from -5.1 parts per thousand to 0.77 parts per thousand with an average of -1.8 parts per thousand, indicating that the sulfur in the fluids was derived from deep-seated magma or the mantle. Combining LA-ICP-MS zircon U-Pb dating on the II, III and V magmatic body and the Re-Os dating on molybdenite, we suggest metallogenesis of the Baogutu porphyry copper deposit took place in the Late Carboniferous, and its mineralization is closely related to the intruding of the intermediate-acid porphyry body.
学科主题	矿床地质
WOS关键词	NW CHINA ; HYDROTHERMAL ALTERATION ; CONTINENTAL-CRUST ; EASTERN TIANSHAN ; CENTRAL-ASIA ; MO DEPOSIT ; S-ISOTOPE ; MINERALIZATION ; JUNGGAR ; WATER
WOS研究方向	Geology
语种	中文
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000276676700006
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39138]
专题	中国地质调查局
作者单位	Xinjiang Univ, Prospecting Engn Program, Urumqi 830046, Peoples R China
推荐引用方式 GB/T 7714	Zhang, ZX ,Yang, FQ ,Yan, SH ,et al. Sources of ore-forming fluids and materials of the Baogutu porphyry copper deposit in Xinjiang Constraints from sulfur-hydrogen-oxygen isotopes geochemistry[J]. ACTA PETROLOGICA SINICA,2010,26(3):707-716.
APA	Zhang, ZX .,Yang, FQ .,Yan, SH .,Zhang, R .,Chai, FM .,...&Geng, XX .(2010).Sources of ore-forming fluids and materials of the Baogutu porphyry copper deposit in Xinjiang Constraints from sulfur-hydrogen-oxygen isotopes geochemistry.ACTA PETROLOGICA SINICA,26(3),707-716.
MLA	Zhang, ZX ,et al."Sources of ore-forming fluids and materials of the Baogutu porphyry copper deposit in Xinjiang Constraints from sulfur-hydrogen-oxygen isotopes geochemistry".ACTA PETROLOGICA SINICA 26.3(2010):707-716.