The nature and timing of ore formation in the Budunhua copper deposit, southern Great Xing'an Range: Evidence from geology, fluid inclusions, and U-Pb and Re-Os geochronology

doi:10.1016/j.oregeorev.2014.05.016

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	The nature and timing of ore formation in the Budunhua copper deposit, southern Great Xing'an Range: Evidence from geology, fluid inclusions, and U-Pb and Re-Os geochronology
	Ouyang, Hegen 7; Wu, Xinli 1; Mao, Jingwen ; Su, Huiming 2; Santosh, M.; Zhou, Zhenhua ; Li, Chao 5
刊名	ORE GEOLOGY REVIEWS
	2014
卷号	63 页码:238-251
关键词	Great Xing'an Range Budunhua deposit Geochronology Fluid inclusion Porphyry deposit
ISSN号	0169-1368
DOI	10.1016/j.oregeorev.2014.05.016
英文摘要	The Budunhua copper deposit is located in the southern Great Xing'an Range where the stockwork ore bodies are mainly hosted in the Lower Permian Dashizhai Formation. The mineralization occurs in two blocks - the Jinjiling and Kongqueshan - and both are characterized by four main stages: arsenopyrite-pyrite-(molybdenite)-quartz, chalcopyrite-pyrrhotite-quartz, galena-sphalerite-chalcopyrite-quartz and calcite-fluorite-quartz. Wall-rock alteration, which is related to mineralization, is dominated by silicification, sericitization, and chloritization. Fluid inclusion studies show that the ore-forming fluids from Cu stages in both blocks are broadly identical with trapping temperatures of 280 to 400 degrees C for the Kongqueshan, and 300 to 420 degrees C for the Jinjiling. Estimated trapping pressures for the Kongqueshan are 15.0 to 26.6 MPa and for the Jinjiling are 14.9 to 29.4 MPa, corresponding to entrapment depth of 1.5 to 2.7 km and 1.5 to 2.9 km below the paleowater table, respectively. Zircon grains from the tonalite porphyry in the deposit yielded a weighted Pb-206/U-238 mean age of 152 +/- 0.7 Ma, which is consistent with a molybdenite Re-Os model age of 150 +/- 2.2 Ma, indicating that both the porphyry intrusion and the copper deposit are of Late Jurassic age. Our data suggest that the Budunhua deposit is an atypical porphyry deposit related to a Late Jurassic magmatic-hydrothermal system. (C) 2014 Elsevier B.V. All rights reserved.
学科主题	矿床地质
WOS关键词	FREEZING-POINT DEPRESSION ; NE CHINA CONSTRAINTS ; INNER-MONGOLIA ; TECTONIC IMPLICATIONS ; ZIRCON GEOCHRONOLOGY ; HYDROTHERMAL SYSTEM ; NORTHEASTERN CHINA ; VOLCANIC-ROCKS ; CRUSTAL GROWTH ; OROGENIC BELT
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:000340975300016
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40450]
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.North China Geol Explorat Bur, Geol Grp 4, Qinhuangdao 066013, Peoples R China 3.Shijiazhuang Univ Econ, Coll Resources, Shijiazhuang 050031, Peoples R China 4.Santosh, M.] China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 5.Santosh, M.] Kochi Univ, Fac Sci, Kochi 7808520, Japan 6.Natl Res Ctr Geoanal, Beijing 100037, Peoples R China 7.中国地质科学院矿产资源研究所
推荐引用方式 GB/T 7714	Ouyang, Hegen,Wu, Xinli,Mao, Jingwen,et al. The nature and timing of ore formation in the Budunhua copper deposit, southern Great Xing'an Range: Evidence from geology, fluid inclusions, and U-Pb and Re-Os geochronology[J]. ORE GEOLOGY REVIEWS,2014,63:238-251.
APA	Ouyang, Hegen.,Wu, Xinli.,Mao, Jingwen.,Su, Huiming.,Santosh, M..,...&Li, Chao.(2014).The nature and timing of ore formation in the Budunhua copper deposit, southern Great Xing'an Range: Evidence from geology, fluid inclusions, and U-Pb and Re-Os geochronology.ORE GEOLOGY REVIEWS,63,238-251.
MLA	Ouyang, Hegen,et al."The nature and timing of ore formation in the Budunhua copper deposit, southern Great Xing'an Range: Evidence from geology, fluid inclusions, and U-Pb and Re-Os geochronology".ORE GEOLOGY REVIEWS 63(2014):238-251.