| 杨 柳.山东省埃子王家—原疃矿区成矿流体特征及流体来源[J].地质与勘探,2012,48(2):217-226 |
| 山东省埃子王家—原疃矿区成矿流体特征及流体来源 |
| Characteristics of the Ore-forming Fluid from the Aiziwangjia-YuantuanGold Deposit in Shandong Province and Its Origin |
| 投稿时间：2011-01-13 修订日期：2011-12-26 |
| DOI： |
| 中文关键词: 成矿流体 包裹体 金矿床 埃子王家-原疃 |
| 英文关键词: ore-forming fluid,fluid inclusion,gold deposit,Aiziwangjia-Yuantuan deposit |
| 基金项目:湖南省自然科学基金(编号07JJ6071)资助 |
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| 中文摘要: |
| [摘 要] 通过对埃子王家-原疃矿区流体包裹体岩相学、测温学及铅、硫同位素等的分析,研究其成矿流体性质和演化,并探讨矿床成矿流体和成矿物质来源,结果表明:①流体包裹体主要为气液两相包裹体;包裹体液相成分阳离子以K+、Na+、Ca2+、Mg2+为主,阴离子以SO24、Cl-、F-为主;气相成分以H2O、CO2、CH4为主;②成矿流体均一温度、盐度分别为120～350℃,4. 26%～8. 66%,为中低温(200℃以下为70%)、低盐度的流体;③206Pb/204Pb 范围为16. 217～18. 034;207Pb/204Pb 范围为15.180～16.889;208Pb/204Pb 范围为36. 586～39. 987。分析认为,本区铅同位素来源应为壳幔混合源。 |
| 英文摘要: |
| Abstract:This paper presents analysis of the lithofacies, thermometry and sulfur isotopes of fluid inclusions from the Aiziwangjia-Yuantuan gold deposit in Shandong Province. The purpose is to study the property, evolution and origin of the ore-forming fluid of this gold deposit. The result shows that these fluid inclusions are mainly gas and fluid two-phase ones. Compositions of liquid inclusions are Na+, K+, Ca2+, Mg2+, SO2-4, Cl- and F- , and those of gas liquid are mainly H2O, CO2and CH4. The homogenization temperature of ore-forming fluid ranges from 120℃to 350℃, and salinity of fluid inclusions is between 4. 26% and 8. 66%, belonging to the middle-low temperature(≤200℃accounting for 70%)and low salinity fluid. In Pb isotope values,206Pb/204Pb ranges from 16.217 to 18.034;207Pb/204Pb ranges from 15. 180 to 16. 889,208Pb/204Pb ranges from 36. 586 to 39. 987, respectively, and δ34S (‰) ranges from -4. 7 to +4. 7. The analysis suggests that these isotopes have a mixed material source from crust and mantle. |
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