IGGCAS OpenIR  > 矿产资源研究院重点实验室
Mineralogy and He-Ar isotopic compositions of pyrites in the Paishanlou Au deposit on the northern margin of North China Craton
Bai, Yang1,2,4; Zhang, Lianchang1,2,4; Zhu, Mingtian1,2,4,5; Huang, Ke1,2,4; Wang, Yibo2,3,4; Shi, Fangping1,2,4
2019-10-23
Source PublicationGEOLOGICAL JOURNAL
ISSN0072-1050
Pages20
AbstractThe Paishanlou Au deposit is an altered-rock type with the magmatic-hydrothermal type deposit on the northern margin of the North China Craton and hosts a resource of 40 tonnes Au. The deposit is hosted in the Neoarchean metamorphic rocks of the Jianping Group and is controlled mainly by ENE-NW-trending ductile shear zones. The orebodies are stratoid, and mineralization styles are divided into auriferous altered felsic mylonite and altered biotite plagioclase mylonite. The sulphide minerals are dominated by pyrite that is recognized as pyrite 1, pyrite 2, and pyrite 3 based on crystalline form and structure, and pyrite 2 is the main auriferous mineral. Three types of pyrite were selected for electron microprobe analysis (EPMA), and the results show S deficiency, indicating that the pyrites are formed in reducing conditions. The pyrites have a trend from being Fe deficient to being Fe enriched, suggesting that the crystallization rate increases with the decrease of impurity composition from the early to the late stage. The Co/Ni ratios and Co-Ni-As diagram reflect that the Paishanlou Au deposit is associated with magmatic-hydrothermal and is affected by various hydrothermal. He-Ar isotopic analyses of auriferous pyrite 2 indicate that the ore-forming fluids are mixtures of mantle-derived and modified air-saturated water (MASW). He-3/He-4 ratios range from 0.21 to 1.51 Ra (Ra = 1.39 x 10(-6) for air), corresponding to a 2.18%-19.06% mantle He contribution. The formation of mixed ore-forming fluids was related to magmatism associated with craton destruction during the Early Cretaceous. Also, we attempt to use the thermoelectric characteristics of pyrite and a contour chart of Au grades to indicate potential mineralization prospecting areas.
Keyworddeep predicting EPMA He-Ar isotopes mixed ore-forming fluids Paishanlou Au deposit thermoelectricity of pyrite
DOI10.1002/gj.3644
Funding OrganizationMinistry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China
WOS KeywordMANTLE-DERIVED FLUIDS ; ORE-FORMING FLUIDS ; GOLD DEPOSITS ; NOBLE-GASES ; HYDROTHERMAL FLUIDS ; HELIUM-ISOTOPES ; COPPER-DEPOSIT ; OROGENIC BELT ; SHEAR ZONE ; INCLUSIONS
Language英语
Funding ProjectMinistry of Science and Technology of the People's Republic of China[2016YFC0600106]
Funding OrganizationMinistry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China ; Ministry of Science and Technology of the People's Republic of China
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000491598500001
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95761
Collection矿产资源研究院重点实验室
岩石圈演化国家重点实验室
Corresponding AuthorZhang, Lianchang
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
4.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
5.Univ Sci & Technol, Earth Sci & Engn, Qingdao, Shandong, Peoples R China
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Bai, Yang,Zhang, Lianchang,Zhu, Mingtian,et al. Mineralogy and He-Ar isotopic compositions of pyrites in the Paishanlou Au deposit on the northern margin of North China Craton[J]. GEOLOGICAL JOURNAL,2019:20.
APA Bai, Yang,Zhang, Lianchang,Zhu, Mingtian,Huang, Ke,Wang, Yibo,&Shi, Fangping.(2019).Mineralogy and He-Ar isotopic compositions of pyrites in the Paishanlou Au deposit on the northern margin of North China Craton.GEOLOGICAL JOURNAL,20.
MLA Bai, Yang,et al."Mineralogy and He-Ar isotopic compositions of pyrites in the Paishanlou Au deposit on the northern margin of North China Craton".GEOLOGICAL JOURNAL (2019):20.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Bai, Yang]'s Articles
[Zhang, Lianchang]'s Articles
[Zhu, Mingtian]'s Articles
Baidu academic
Similar articles in Baidu academic
[Bai, Yang]'s Articles
[Zhang, Lianchang]'s Articles
[Zhu, Mingtian]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Bai, Yang]'s Articles
[Zhang, Lianchang]'s Articles
[Zhu, Mingtian]'s Articles
Terms of Use
No data!
Social Bookmark/Share
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.