Genesis of the Sawusi lead-zinc deposit in the eastern Maizi volcanic-sedimentary basin, southern Altay Mountains.
文献类型：期刊论文
| 作者 | Liu XiuJin1,2; Liu Wei1; Liu LiJuan1,2; Shang HaiJun3; Liu GuoRen3 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2011-06-01 |
| 卷号 | 27期号:6页码:1810-1828 |
| 关键词 | Garnet-biotite and grunerite skarn Mineral chemistry Mutual infiltrative-metasomatism Volcanic-exhalative sedimentary deposit Sawusi Maizi volcanic-sedimentary basin |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Sawusi lead-zinc sulfide deposit is located in the eastern portion of the Maizi volcanic-sedimentary basin along the southern margin of the Altay Mountains. This study elaborates the geological and geochemical characteristics of the deposit in an attempt to tackle its genesis for the first time. Host rock of the deposit consists of stratifom garnet-biotite and grunerite skarns, meta-rhyolitic crystalloclastic tuff, rhyolite-porphyry and a small amount of impure marble within the upper section of the Early Devonian Kangbutiebao Formation. In brief, the Sawusi deposit bear dual characteristics of both volcanic-exhalative sedimentary deposit and skarn deposit. This study performed geological investigation, petrographic observation and detailed electron microprobe analyses on typical minerals. Our results show that the stratiform skarn of the Sawusi consists mainly of spessartine, almandine, grunerite, biotite, and Fe-Mn-Ca carbonate minerals, and has been formed through mutual infiltrative-metasomatism between tuff and thin, intercalated sedimentary bands of Fe-Mn calcic carbonates. The scale of metasomatism is limited to a few centimeters. Carbon, hydrogen and oxygen isotope compositions show that the ore-forming fluid involves two components of magmatic fluid and surface water. In conclusion, skarns in the Sawusi deposit occur as stratiform, strata-bounded, consist of the Mn-rich mineral assemblage, and have been formed through centimeter-scale mutual infiltrative-metasomatism. These characteristics indicate a volcanic exhalative-sedimentary genesis instead of typical contact metasomatic origin. This study has broad relevance to the massive sulfide deposits along the southern Altay Mountains in both genesis study and ore prospection. |
| WOS关键词 | ASIAN OROGENIC BELT ; CHINESE ALTAI ; TECTONIC EVOLUTION ; SKARN DEPOSIT ; AGE ; GEOCHEMISTRY ; ACCRETION ; HISTORY ; GEOLOGY ; SYSTEM |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000292995600020 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/74014]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Liu XiuJin |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Xinjiang Bur Geol & Mineral Explorat & Dev, Altay 836500, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu XiuJin,Liu Wei,Liu LiJuan,et al. Genesis of the Sawusi lead-zinc deposit in the eastern Maizi volcanic-sedimentary basin, southern Altay Mountains.[J]. ACTA PETROLOGICA SINICA,2011,27(6):1810-1828. |
| APA | Liu XiuJin,Liu Wei,Liu LiJuan,Shang HaiJun,&Liu GuoRen.(2011).Genesis of the Sawusi lead-zinc deposit in the eastern Maizi volcanic-sedimentary basin, southern Altay Mountains..ACTA PETROLOGICA SINICA,27(6),1810-1828. |
| MLA | Liu XiuJin,et al."Genesis of the Sawusi lead-zinc deposit in the eastern Maizi volcanic-sedimentary basin, southern Altay Mountains.".ACTA PETROLOGICA SINICA 27.6(2011):1810-1828. |
入库方式： OAI收割
来源：地质与地球物理研究所
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