Mineralogy, ore-forming fluids and geochronology of the Shangmachang and Beidagou gold deposits, Heilongjiang province, NE China

doi:10.1016/j.gexplo.2017.12.016

	Mineralogy, ore-forming fluids and geochronology of the Shangmachang and Beidagou gold deposits, Heilongjiang province, NE China
	Gao, Shen 1,2; Xu, Hong 3; Zang, Yanqing 4; Wang, Ting 5
刊名	JOURNAL OF GEOCHEMICAL EXPLORATION
	2018-05-01
卷号	188 页码:137-155
关键词	Te-Au-Ag minerals Fluid inclusions (FIs) O-H-C isotopes Geochronology Epithermal gold deposits Central Asian Orogenic Belt (CAOB)
ISSN号	0375-6742
DOI	10.1016/j.gexplo.2017.12.016
文献子类	Article
英文摘要	The newly discovered Shangmachang epithermal gold (> 11 t Au; Heilongjiang province, NE China) and Beidagou epithermal tellurium-gold (> 5 t Au) deposits are located at the northeastern margin of the Central Asian Orogenic Belt and are hosted in Early Cretaceous volcanic rocks. At the Shangmachang deposit, gold occurs largely as electrum microparticles (5-120 mu m) with a fineness of approximately 401-697 in quartz, calcite, and pyrite. Silver-bearing minerals include electrum, polybasite, and minor argentite. The main mineral paragenetic assemblages consist of pyrite-electrum and galena-polybasite, while the hydrothermal alteration minerals include quartz, calcite, sericite, chlorite, and pyrite. Trace elements in the gangue minerals show that the Al contents of gold-bearing quartz veins are lower than those of pure quartz veins (early stage). Fluid inclusions in quartz and calcite mainly comprise liquid-vapor, and the components contain a liquid phase consisting of Na+, Cl-, and SO42- and a gas phase consisting of N-2, CO2, and CH4. The Shangmachang fluid inclusions homogenize at 142.8 degrees-303.0 degrees C and are of low salinity (0.2-8.8 wt% NaCl equiv.),while the Au mineralization formed at 150 degrees-225 degrees C. The calcite delta O-18(fluid) values range from -17.8%(0) to -13.1%(0), and the carbon isotope compositions range from -8.2%(0) to -4.5%(0). Zircon U-Pb dating of the Longjiang Formation andesite yields 119.4 +/- 1.9 Ma, and the granite yields 118.6 +/- 1.2 Ma, suggesting that local magmatism occurred during the Early Cretaceous. Calcite Sm-Nd dating suggests that the Au mineralization has an age of approximately 113.6 +/- 4.0 Ma.
WOS关键词	U-PB AGES ; GREAT XINGAN RANGE ; DA HINGGAN MOUNTAINS ; ND-HF ISOTOPES ; NORTHEASTERN CHINA ; SONGLIAO BASIN ; GEOLOGICAL SIGNIFICANCE ; HYDROTHERMAL FLUIDS ; ERGUNA MASSIF ; GEODYNAMIC SETTINGS
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000428134600012
资助机构	China Geological Survey Projects(1212011121083) ; China Geological Survey Projects(1212011121083) ; China Geological Survey Projects(1212011121083) ; China Geological Survey Projects(1212011121083) ; National Key Research and Development Program of China(2017YFC0601306) ; National Key Research and Development Program of China(2017YFC0601306) ; National Key Research and Development Program of China(2017YFC0601306) ; National Key Research and Development Program of China(2017YFC0601306) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; China Geological Survey Projects(1212011121083) ; China Geological Survey Projects(1212011121083) ; China Geological Survey Projects(1212011121083) ; China Geological Survey Projects(1212011121083) ; National Key Research and Development Program of China(2017YFC0601306) ; National Key Research and Development Program of China(2017YFC0601306) ; National Key Research and Development Program of China(2017YFC0601306) ; National Key Research and Development Program of China(2017YFC0601306) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; China Geological Survey Projects(1212011121083) ; China Geological Survey Projects(1212011121083) ; China Geological Survey Projects(1212011121083) ; China Geological Survey Projects(1212011121083) ; National Key Research and Development Program of China(2017YFC0601306) ; National Key Research and Development Program of China(2017YFC0601306) ; National Key Research and Development Program of China(2017YFC0601306) ; National Key Research and Development Program of China(2017YFC0601306) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; China Geological Survey Projects(1212011121083) ; China Geological Survey Projects(1212011121083) ; China Geological Survey Projects(1212011121083) ; China Geological Survey Projects(1212011121083) ; National Key Research and Development Program of China(2017YFC0601306) ; National Key Research and Development Program of China(2017YFC0601306) ; National Key Research and Development Program of China(2017YFC0601306) ; National Key Research and Development Program of China(2017YFC0601306) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2017LH016) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Bureau of Geology and Mineral Exploration (Heilongjiang) ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er ; Geological Brigades of the Heilongjiang Geological Survey at Qiqiha'er
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/83044]
专题	中国科学院地质与地球物理研究所
通讯作者	Xu, Hong
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.China Univ Geosci Beijing, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 4.China Geol Survey, Shenyang Survey, Shenyang 110000, Liaoning, Peoples R China 5.China Geol Survey, Oil & Gas Survey, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Gao, Shen,Xu, Hong,Zang, Yanqing,et al. Mineralogy, ore-forming fluids and geochronology of the Shangmachang and Beidagou gold deposits, Heilongjiang province, NE China[J]. JOURNAL OF GEOCHEMICAL EXPLORATION,2018,188:137-155.
APA	Gao, Shen,Xu, Hong,Zang, Yanqing,&Wang, Ting.(2018).Mineralogy, ore-forming fluids and geochronology of the Shangmachang and Beidagou gold deposits, Heilongjiang province, NE China.JOURNAL OF GEOCHEMICAL EXPLORATION,188,137-155.
MLA	Gao, Shen,et al."Mineralogy, ore-forming fluids and geochronology of the Shangmachang and Beidagou gold deposits, Heilongjiang province, NE China".JOURNAL OF GEOCHEMICAL EXPLORATION 188(2018):137-155.