Experimental study on tin partition between granitic silicate melt and coexisting aqueous fluid
文献类型：期刊论文
| 作者 | Hu, Xiaoyan1,2; Bi, Xianwu1; Hu, Ruizhong1; Shang, Linbo1; Fan, Wenling1 |
| 刊名 | Geochemical journal
 |
| 出版日期 | 2008 |
| 卷号 | 42期号:2页码:141-150 |
| 关键词 | Experimental study Tin partition Granitic silicate melt Aqueous fluid |
| ISSN号 | 0016-7002 |
| 通讯作者 | Bi, xianwu(bixianwu@vip.gyig.ac.cn) |
| 英文摘要 | The distribution of tin between different granitic silicate melts and coexisting aqueous fluids have been determined at 850 degrees c, 100 mpa and f(o2) near nno. tin distribution coefficients d-sn(aq.fl/melt) are constrained by the composition of melt. when the starting fluid is 0.1 m hcl, d-sn(aq.fl/melt) decreases rapidly from 0.130 +/- 0.090-0.137 +/- 0.016 to 4.22 (+/- 0.47) x 10(-3) with the na2o + k2o mole content and asi of melt varying from 6.55 to 9.39% and 1.37 to 0.66, respectively, and tin concentrations in aqueous fluids and d-sn(aq.fl/melt) decrease from 9.26 +/- 0.56 to 0.220 +/- 0.013 mu g/g and 3.70 (+/- 0.42) x 10(-2) to 1.29 (+/- 0.15) x 10(-3), respectively with na/k mole ratio increasing from 0.43 to 1.57 and nearly constant asi frorn 1.04 to 1.10. a series of experiments that use the same k-rich peraluminous haplogranitic melt as starting solid whereas investigate the effects of chlorine and fluorine, the presence of chlorine in aqueous fluids increases d-sn(aq.fl/melt) because of tin complexing, the presence of fluorine in the starting fluid does not significantly influence on d-sn(aq.fl/melt). for the chlorine experiments, d-sn(aq.fl/melt) shows a positive dependence on the concentration of hcl in the starting fluid with log d-sn(aq.fl/melt) = 2.0247 x log[hcl] + 0.6717 ([hcl] unit is m), and sncl2 is the dominant tin-bearing complex in aqueous fluid. the results of this experiment showed that the peralkalinity of granitic melt and f-bearing in granite can lead to the enrichment of till in melt phase, and, therefore, they probably serve as a tin ore reservoir or all important transport medium for tin ore formation, whereas k-rich peraluminous granitic melt and high hcl concentrations in the aqueous fluid phase are favorable for tin partitioning in aqueous fluid. |
| WOS关键词 | 2 KBAR ; ALKALI EXCHANGE ; ORE-DEPOSITS ; SOLUBILITY ; MAGMAS ; 800-DEGREES-C ; COPPER ; WATER ; MO ; 850-DEGREES-C |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000261047500001 |
| 出版者 | GEOCHEMICAL SOC JAPAN |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2390447 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Bi, Xianwu |
| 作者单位 | 1.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550002, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Xiaoyan,Bi, Xianwu,Hu, Ruizhong,et al. Experimental study on tin partition between granitic silicate melt and coexisting aqueous fluid[J]. Geochemical journal,2008,42(2):141-150. |
| APA | Hu, Xiaoyan,Bi, Xianwu,Hu, Ruizhong,Shang, Linbo,&Fan, Wenling.(2008).Experimental study on tin partition between granitic silicate melt and coexisting aqueous fluid.Geochemical journal,42(2),141-150. |
| MLA | Hu, Xiaoyan,et al."Experimental study on tin partition between granitic silicate melt and coexisting aqueous fluid".Geochemical journal 42.2(2008):141-150. |
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来源：中国科学院大学
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