The Rb-Sr isotopic dating of sulfides and geological significance of the Lushi polymetallic ore-concentrated area in southern margin of the North China Craton
文献类型：期刊论文
| 作者 | Zhang ZheMing2,3,4; Zeng QingDong2,3,4; Gao Shuai2,3,4; Chu ShaoXiong3,4; Li DeTing3,4; Cheng ZhanDong1; Ma LiuSuo1; Guo YunPeng3,4 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2019 |
| 卷号 | 35期号:7页码:2013-2025 |
| ISSN号 | 1000-0569 |
| 关键词 | Loufang Ag-Cu deposit Liuguan Pb-Zn deposit Rb-Sr dating Pyrite Chalcopyrite Lushi ore-concentrated area |
| DOI | 10.18654/1000-0569/2019.07.05 |
| 英文摘要 | There are a lot of Au, Mo and Pb-Zn polymetallic ore deposits developed in Qinling metallogenic belt, southern margin of the North China Craton. The Lushi polymetallic ore-concentrated area is located in eastern part of this belt, which including Yechangping Mo-W deposit, Babaoshan Fe-Cu deposit, Loufang Ag-Cu deposit, Liuguan Pb-Zn deposit, and so on. Loufang Ag-Cu deposit is a hydrothermal lode polymetallic deposit, it occurs within the amphibole plagiogneiss of Taihua Group, and the ore bodies in this deposit are controlled by the structural alteration fracture zones. Two stages of mineralization are identified in Loufang deposit: quartz-pyrite-chalcopyrite and quartz-pyrite-galena-sphalerite-calcite assemblages. The former is the Cu mineralization stage, while the latter is the Pb-Zn mineralization. Liuguan Pb-Zn deposit is a skarn deposit, whose orebodies occur within the skarn belt between dolomite of the Guandaokou Group and granite porphyry or cryptoexplosive breccia. Two stages of mineralization are identified in Liuguan deposit: diopside-tremolite-actinolite-garnet-magnetite and galena-sphalerite-pyrite-epidote-serpentine-quartz-calcite. The former is the magnetite mineralization stage, and the latter is the Pb-Zn mineralization stage. The results of chalcopyrite isochron dating indicate that the Rb-Sr isochron age of the Loufang Ag-Cu deposit is 127.8 +/- 3.1Ma (2 sigma, MSWD = 1.1), and the initial Rb-87/Sr-86 of which is 0.710998 +/- 0.000068; The Rb-Sr isochron age of pyrite in Liuguan Pb-Zn deposit is 124.8 +/- 1.6Ma (2 sigma, MSWD = 1.4), and the initial Rb-87/Sr-86 of which is 0.711074 +/- 0.000064. The age data indicate that the hydrothermal polymetallic deposits in Lushi polymetallic ore-concentrated area were formed in Early Cretaceous, which is associated with Early Cretaceous intrusive magmatism. Combining with regional geological data, it can be concluded that the polymetallic deposits in this area were formed in a tectonic setting related to craton destruction happened in Early Cretaceous. |
| WOS关键词 | ZIRCON U-PB ; PORPHYRY MO DEPOSIT ; QINLING OROGEN ; GOLD DEPOSIT ; MOLYBDENUM DEPOSITS ; TECTONIC EVOLUTION ; AGE ; GEOCHEMISTRY ; PETROGENESIS ; GENESIS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000491151100005 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/93906]  |
| 专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 通讯作者 | Zeng QingDong |
| 作者单位 | 1.Lushi Country Bur Land & Resource, Lushi 472200, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Key Lab Mineral Resources, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang ZheMing,Zeng QingDong,Gao Shuai,et al. The Rb-Sr isotopic dating of sulfides and geological significance of the Lushi polymetallic ore-concentrated area in southern margin of the North China Craton[J]. ACTA PETROLOGICA SINICA,2019,35(7):2013-2025. |
| APA | Zhang ZheMing.,Zeng QingDong.,Gao Shuai.,Chu ShaoXiong.,Li DeTing.,...&Guo YunPeng.(2019).The Rb-Sr isotopic dating of sulfides and geological significance of the Lushi polymetallic ore-concentrated area in southern margin of the North China Craton.ACTA PETROLOGICA SINICA,35(7),2013-2025. |
| MLA | Zhang ZheMing,et al."The Rb-Sr isotopic dating of sulfides and geological significance of the Lushi polymetallic ore-concentrated area in southern margin of the North China Craton".ACTA PETROLOGICA SINICA 35.7(2019):2013-2025. |
入库方式： OAI收割
来源：地质与地球物理研究所
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