The fluid inclusion geochemistry and mineragenetic type of the wangfeng gold deposit, xinjiang, china
文献类型：期刊论文
| 作者 | Zhang Li1; Liu ChunFa1,2; Wu Guang1 |
| 刊名 | Acta petrologica sinica
 |
| 出版日期 | 2009-06-01 |
| 卷号 | 25期号:6页码:1465-1473 |
| 关键词 | Wangfeng gold deposit Fluid inclusion Orogenic gold deposit Shear zone Tianshan mountains |
| ISSN号 | 1000-0569 |
| 通讯作者 | Zhang li(zhangli@gig.ac.cn) |
| 英文摘要 | The wangfeng gold deposit, xinjiang uygur autonomous region, is controlled by the bingdaban ductile shear zone in the western end of the western tianshan mountain. its mineralization process is divided into the early, middle and late stages. ore minerals and native gold are revealed to have mainly formed in the middle stage. petrographic, microthermometric and laser raman spectroscopic: studies show that the fluid inclusions in quartz veins include compositional types of co(2)-h(2)o, pure liquid co,, nacl-h(2)o solution, and daughter crystal-bearing. the early-stage quartz only contains primary co(2)-h(2)o fluid inclusions with salinities of 1.62% similar to 8.03% nacl equiv., bulk densities of 0.73 similar to 0.89g/cm(3), and homogenization temperatures of 256 similar to 390 degrees c,. vapor bubbles are composed of co(2). the middle-stage quartz contains all the four types of fluid inclusions, of which the co(2)-h(2)o and nacl-h(2)o types yielding homogenization temperatures of 210 similar to 340 degrees c and 230 similar to 300 degrees c, respectively, and thus implying that fluid boiling occurred in the middle-stage mineralization. the co(2)-h(2)o fluid inclusions have salinities of 0.83% to 9.59% nacl equiv. and bulk densities of 0.77 to 0.95g/cm(3), with vapor bubbles composed of co +/- ch(4) +/- n(2). fluid inclusions in late-stage quartz are nacl-h(2)o solution with low salinities and low homogenization temperatures. trapping pressures estimated from co(2)-h(2)o inclusions are 110 similar to 300 mpa and 90 similar to 250 mpa for the early and middle stages, respectively, suggesting that gold mineralization mainly occurred at the depths of 9 similar to 11 km. in general, the wangfeng gold deposit was originated from a metamorphic fluid-system characterized by low salinity, low density and enrichment in co(2); and depressurized fluid-boiling caused gold precipitation. hence the wangfeng gold deposit is a meso-hypozonal orogenic-type gold system. |
| WOS关键词 | HENAN PROVINCE ; GEODYNAMIC SETTINGS ; OROGENIC GOLD ; GENETIC TYPE ; CENTRAL-ASIA ; MO DEPOSIT ; NW CHINA ; ORIGIN ; CONSTRAINTS ; TIANSHAN |
| WOS研究方向 | Geology |
| WOS类目 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000267571400017 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2394341 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang Li |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Metallogen Dynam, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Li,Liu ChunFa,Wu Guang. The fluid inclusion geochemistry and mineragenetic type of the wangfeng gold deposit, xinjiang, china[J]. Acta petrologica sinica,2009,25(6):1465-1473. |
| APA | Zhang Li,Liu ChunFa,&Wu Guang.(2009).The fluid inclusion geochemistry and mineragenetic type of the wangfeng gold deposit, xinjiang, china.Acta petrologica sinica,25(6),1465-1473. |
| MLA | Zhang Li,et al."The fluid inclusion geochemistry and mineragenetic type of the wangfeng gold deposit, xinjiang, china".Acta petrologica sinica 25.6(2009):1465-1473. |
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来源：中国科学院大学
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