Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
| Wu, Xiaolin1,2; Zhao, Junfeng1,3,4; Liu, Wenyuan1; Xie, Guiqing1,2; Ye, Zi1; Li, Zhiyuan5; Sun, Hongjun5 | |
| Tin mineralization in the giant Shuangjianzishan Ag-Pb-Zn deposit, Inner Mongolia | |
| Source Publication | ORE GEOLOGY REVIEWS
 |
| ISSN | 0169-1368 |
| 2023 | |
| Volume | 152Pages:21 |
| DOI | 10.1016/j.oregeorev.2022.105241 |
| Language | 英语 |
| WOS Research Area | Geology ; Mineralogy ; Mining & Mineral Processing |
| Abstract | The newly discovered Shuangjianzishan giant Ag-Pb-Zn deposit which located in the Southern segment of the Great Xing'an Range (SGXR), has controlled more than 18 000 t reserves of Ag, 1.9 Mt reserves of Zn, and 3.3 Mt reserves of Pb. Previous research has shown that Shuangjianzishan is a typical epithermal Ag-Pb-Zn deposit, however, mid-to high-temperature Cu-Sn (-W) mineralization are few studies. In this paper, a detailed mineralogical study reveals that a remarkable Cu-Sn (-W) mineralization is observed both in the upper tunnel and the deeper drill core samples. In the shallow ore-bodies, tin dominantly occurs as canfieldite in Pb-Zn-rich ores, minor as cassiterite-quartz veinlets. In the deep drill cores, tin occurs as cassiterite in the Cu-rich ores with the assemblage of quartz-arsenopyrite-chalcopyrite-stannite-(wolframite). Four primary paragenetic stages have been recognized. Stage I: cassiterite-quartz-arsenopyrite-chalcopyrite, including two sub-stage: cassiterite-arsenopyrite-pyrrhotite-quartz (stage I1) and sphalerite-chalcopyrite-galena-pyrite (stage I2); Stage II: galenasphalerite-silver minerals; Stage III: Quartz-silver minerals, and stage IV: pyrite-carbonate.Electron probe micro-analysis (EPMA) show that the early mineralization (stage I) is characterized by Fe-rich sphalerite, Co-rich pyrite, Se-rich canfieldite, and Se-Bi-rich galena, while the later mineralization (stage II-IV) contains Fe-depleted sphalerite, As-rich pyrite, and Sb-bearing silver minerals. Laser-ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) analysis show that cassiterite has high contents of W, Fe, Sb, and Ti and depleted in Nb and Ta. Mineral associations and compositions implies a cassiterite-sulfide type tin mineralization in the Shuangjianzishan Ag-Pb-Zn deposit.A concealed granite porphyry intrusion was exposed in deep drill cores in the northwest part of the ore-field, with zircon U-Pb ages of (137.8 & PLUSMN; 1.1) Ma and (136.8 & PLUSMN; 1.0) Ma for fine-and coarse-grains granite, respectively. Bulk analysis shows that concealed granites are characterized by a highly fractionated, relatively reduced, and high K-calc-alkaline to alkaline, which belongs to A-type granites, and the remnant of Sn-bearing titanite suggests that it has the potential to provide the source of tin. Zircon U-Pb age (138-130 Ma) is well coupled with the previous data (ore-forming age, 136-129 Ma) of Shuangjianzishan, suggesting a close temporal and genetic relationship between tin mineralization and emplacement of the granite. This contribution implies that the Shuangjianzishan deposit may exist a middle-to high-temperature Cu-Sn (-W) mineralization center rather than a simple low-temperature hydrothermal system, and shows there is significant Sn-Cu mineralization potential in the peripheral and root zone of ore district. |
| Keyword | Mineralogy Tin mineralization Cassiterite Shuangjianzishan Ag-Pb-Zn deposit |
| WOS ID | WOS:001049089100001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/74678 |
| Collection | 中国科学院矿物学与成矿学重点实验室 |
| Corresponding Author | Liu, Wenyuan; Xie, Guiqing |
| Affiliation | 1.Fuzhou Univ, Zijin Sch Geol & Min, Fuzhou 350108, Peoples R China 2.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangzhou 510640, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 5.Chifeng Yubang Min Co, Chifeng 024000, Peoples R China |
| Recommended Citation GB/T 7714 | Wu, Xiaolin,Zhao, Junfeng,Liu, Wenyuan,et al. Tin mineralization in the giant Shuangjianzishan Ag-Pb-Zn deposit, Inner Mongolia[J]. ORE GEOLOGY REVIEWS,2023,152:21. |
| APA | Wu, Xiaolin.,Zhao, Junfeng.,Liu, Wenyuan.,Xie, Guiqing.,Ye, Zi.,...&Sun, Hongjun.(2023).Tin mineralization in the giant Shuangjianzishan Ag-Pb-Zn deposit, Inner Mongolia.ORE GEOLOGY REVIEWS,152,21. |
| MLA | Wu, Xiaolin,et al."Tin mineralization in the giant Shuangjianzishan Ag-Pb-Zn deposit, Inner Mongolia".ORE GEOLOGY REVIEWS 152(2023):21. |
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