IGGCAS OpenIR  > 岩石圈演化国家重点实验室
Timing and Processes of Ore Formation in the Qingchengzi Polymetallic Orefield, Northeast China: Evidence from(40)Ar/Ar-39 Geochronology
Wang Yinzhi1,2; Wang Fei1,2,3,4; Shi Wenbei1,2; Yang Liekun1,2; Wu Lin1,2
2020-06-01
Source PublicationACTA GEOLOGICA SINICA-ENGLISH EDITION
ISSN1000-9515
Volume94Issue:3Pages:789-800
AbstractThe Qingchengzi orefield is a large polymetallic ore concentration area in the Liaodong peninsula, northeastern China, that includes twelve Pb-Zn deposits and five Au-Ag deposits along its periphery. The ore-forming age remains much disputed, which prevents the identification of the relationship between the mineralization and the associated magmatism. In this paper, we quantitatively present the feasibility of making ore mineral(40)Ar/Ar-39 dating and report reliable(40)Ar/Ar-39 ages of lamprophyre groundmass, K-feldspar and sphalerite from the Zhenzigou deposit. Direct and indirect methods are applied to constrain the timing of mineralization, which plays a vital role in discussing the contribution of multistage magmatism to ore formation. The low-potassium sphalerite yielded an inverse isochron age of 232.8 +/- 41.5 Ma, which features a relatively large uncertainty. Two lamprophyre groundmasses got reliable inverse isochron ages of 193.2 +/- 1.3 Ma and 152.3 +/- 1.5 Ma, respectively. K-feldspar yielded a precise inverse isochron age of 134.9 +/- 0.9 Ma. These four ages indicate that the mineralization is closely associated with Mesozoic magmatism. Consequently, regarding the cooling age of the earliest Mesozoic Shuangdinggou intrusion (224.2 +/- 1.2 Ma) as the initial time of mineralization, we can further constrain the age of the sphalerite to 224-191 Ma. These new and existing geochronological data, combined with the interaction cutting or symbiotic relationship between the lamprophyre veins and ore veins, suggest that the Pb-Zn-Au-Ag mineralization in the Qingchengzi orefield mainly occurred during three periods: the late Triassic (ca. 224-193 Ma), the late Jurassic (ca. 167-152 Ma) and the early Cretaceous (ca. 138-134 Ma). This polymetallic deposits are shown to have been formed during multiple events coinciding with periods of the Mesozoic magmatic activity. In contrast, the Proterozoic magmatism and submarine exhalative and hydrothermal sedimentation in the Liaolaomo paleorift served mainly to transport and concentrate the ore-forming substances at the Liaohe Group with no associated Pb-Zn-Au-Ag mineralization.
KeywordAr-40 Ar-39 dating mineralization ages magmatism Qingchengzi orefield Mesozoic
DOI10.1111/1755-6724.14370
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 ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations 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 ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations 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 ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations 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 ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China
WOS KeywordPB-ZN DEPOSIT ; FLUID INCLUSION GEOCHEMISTRY ; GOLD DEPOSIT ; AR-40/AR-39 GEOCHRONOLOGY ; LIAODONG PENINSULA ; CU DEPOSIT ; MINERALIZATION ; CLASSIFICATION ; XINJIANG ; PYRITE
Language英语
Funding ProjectMinistry of Science and Technology of the People's Republic of China[2016YFC0600109] ; Natural Science Foundations of China[41521062] ; Natural Science Foundations of China[41503055]
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 ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations 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 ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations 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 ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations 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 ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Natural Science Foundations of China
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000544351300020
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/97120
Collection岩石圈演化国家重点实验室
Corresponding AuthorWang Yinzhi
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
First Author AffilicationState Key Laboratory of Lithospheric Evolution;  Institute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationState Key Laboratory of Lithospheric Evolution;  Institute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
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Wang Yinzhi,Wang Fei,Shi Wenbei,et al. Timing and Processes of Ore Formation in the Qingchengzi Polymetallic Orefield, Northeast China: Evidence from(40)Ar/Ar-39 Geochronology[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2020,94(3):789-800.
APA Wang Yinzhi,Wang Fei,Shi Wenbei,Yang Liekun,&Wu Lin.(2020).Timing and Processes of Ore Formation in the Qingchengzi Polymetallic Orefield, Northeast China: Evidence from(40)Ar/Ar-39 Geochronology.ACTA GEOLOGICA SINICA-ENGLISH EDITION,94(3),789-800.
MLA Wang Yinzhi,et al."Timing and Processes of Ore Formation in the Qingchengzi Polymetallic Orefield, Northeast China: Evidence from(40)Ar/Ar-39 Geochronology".ACTA GEOLOGICA SINICA-ENGLISH EDITION 94.3(2020):789-800.
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