Superimposed mineralization of the Duobaoshan Cu( Mo) deposit in Heilongjiang Province: Indicated by the molybdenite Re -Os isotopic dating and sulfur isotope composition
文献类型：期刊论文
| 作者 | Suo QingYu1,2,3; Li ChangHao1,2,3; Shen Ping1,2,3; Zhao JunKang4; Chu XiangKai1,2,3 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 39期号:11页码:3479-3490 |
| ISSN号 | 1000-0569 |
| 关键词 | Duobaoshan porphyry Cu( Mo) deposit Superimposed mineralization Re -Os isotope age Sulfur isotope |
| DOI | 10.18654/1000-0569/2023.11.16 |
| 英文摘要 | Porphyry copper deposits can be deformed by subsequent magmatic -tectonic -metamorphic evolution, resulting in the consequent superimposed mineralization and the remobilization of pre-existing ores. This process might potentially increase the ore grade and/or resource. We focus on the Duobaoshan Cu ( Mo) deposit, two mineralization periods were identified within the Duobaoshan deposit in this study, i. e., the porphyry period and the superimposed period. Ten molybdenite samples from the superimposed period yield Re -Os isotopic model ages of 435.6 +/- 10. 5Ma to 446. 1 +/- 7. 1Ma, and an isochron age of 440. 1 +/- 4. 5Ma ( MSWD = 0. 56). Combined with the age of magmatic activity developed in the region, it is suggested that the superimposed mineralization and the Late Ordovician basaltic andesite should be formed in a unified geological event in the Duobaoshan deposit. The in -situ sulfur isotope results of chalcopyrite and pyrite from different mineralization periods show that the average delta S-34 value of chalcopyrite in typical porphyry veins is -2. 12 parts per thousand, while those of chalcopyrite and pyrite in the superimposed mineralization are -1. 78 parts per thousand and 1. 03 parts per thousand, respectively, which fall into the range of a mantle source, indicating that the sulfur of the deposit mainly comes from the magma. However, previous studies have found that chalcopyrite formed during the superimposed mineralization has low 8345 values ( 12. 9 parts per thousand 5. 6 parts per thousand) as a result of the migration of light sulfur S-32 which is easily carried by late -stage fluids and deposited in areas of a lower stress. The isotopic compositions indicate that the mineralized elements in the superimposed period either originated from new magmatism or inherited from pre-existing rock ( ore) bodies. Key words Duobaoshan porphyry Cu( Mo) deposit; Superimposed mineralization; |
| WOS关键词 | NE CHINA ; IGNEOUS ROCKS ; AU DEPOSIT ; GOLD MINERALIZATION ; OROGENIC BELT ; PORPHYRY ; GEOCHEMISTRY ; GEOCHRONOLOGY ; SULFIDE ; AGES |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:001097943000016 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111142]  |
| 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 | Suo QingYu |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 4.Zijin Min Grp Co Ltd, Geol Prospecting Inst, Xiamen 361000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Suo QingYu,Li ChangHao,Shen Ping,et al. Superimposed mineralization of the Duobaoshan Cu( Mo) deposit in Heilongjiang Province: Indicated by the molybdenite Re -Os isotopic dating and sulfur isotope composition[J]. ACTA PETROLOGICA SINICA,2023,39(11):3479-3490. |
| APA | Suo QingYu,Li ChangHao,Shen Ping,Zhao JunKang,&Chu XiangKai.(2023).Superimposed mineralization of the Duobaoshan Cu( Mo) deposit in Heilongjiang Province: Indicated by the molybdenite Re -Os isotopic dating and sulfur isotope composition.ACTA PETROLOGICA SINICA,39(11),3479-3490. |
| MLA | Suo QingYu,et al."Superimposed mineralization of the Duobaoshan Cu( Mo) deposit in Heilongjiang Province: Indicated by the molybdenite Re -Os isotopic dating and sulfur isotope composition".ACTA PETROLOGICA SINICA 39.11(2023):3479-3490. |
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。