Timing and Processes of Ore Formation in the Qingchengzi Polymetallic Orefield, Northeast China: Evidence from(40)Ar/Ar-39 Geochronology
文献类型：期刊论文
| 作者 | Wang Yinzhi2,3; Wang Fei1,2,3,4; Shi Wenbei2,3; Yang Liekun2,3; Wu Lin2,3 |
| 刊名 | ACTA GEOLOGICA SINICA-ENGLISH EDITION
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 94期号:3页码:789-800 |
| 关键词 | Ar-40 Ar-39 dating mineralization ages magmatism Qingchengzi orefield Mesozoic |
| ISSN号 | 1000-9515 |
| DOI | 10.1111/1755-6724.14370 |
| 英文摘要 | The 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. |
| WOS关键词 | PB-ZN DEPOSIT ; FLUID INCLUSION GEOCHEMISTRY ; GOLD DEPOSIT ; AR-40/AR-39 GEOCHRONOLOGY ; LIAODONG PENINSULA ; CU DEPOSIT ; MINERALIZATION ; CLASSIFICATION ; XINJIANG ; PYRITE |
| 资助项目 | Ministry of Science and Technology of the People's Republic of China[2016YFC0600109] ; Natural Science Foundations of China[41521062] ; Natural Science Foundations of China[41503055] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000544351300020 |
| 出版者 | WILEY |
| 资助机构 | 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 ; 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 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/97120]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Wang Yinzhi |
| 作者单位 | 1.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | 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. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。