| 山西耿庄金矿重晶石巨晶中多相态包裹体研究 |
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| 引用本文： | 黄菲,金成洙,姚玉增,赵玉山,温守钦.山西耿庄金矿重晶石巨晶中多相态包裹体研究[J].吉林大学学报(地球科学版),2005,35(3):313-319. |
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| 作者姓名： | 黄菲 金成洙 姚玉增 赵玉山 温守钦 |
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| 作者单位： | 1.东北大学 资源与土木工程学院，辽宁 沈阳 110004；2.南京大学 内生金属矿床成矿机制研究国家重点实验室，江苏 南京 210008 |
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| 摘 要： | 在山西耿庄金矿区发现的重晶石巨晶，包含有富镍黄铁矿、FeS2-Fe（Ni,Co）S2系列晶须和气液包裹体。用扫描电镜、电子探针等分析研究了重晶石和固体包裹体矿物的形貌、成分和物理性质。用激光拉曼光谱仪研究了气液包裹体成分、均一温度。结果表明：重晶石成分单一，结构发育完好；FeS2-Fe（Ni，Co）S2系列晶须成分随着晶须加粗有明显变化；富镍黄铁矿成分较为稳定。固体包裹体矿物的结晶程度高，晶体形态标准。热液为低盐度流体，其成分主要为H2O，含少量CO2，其总体密度为0.79～0.95 g／cm3。包裹体均一温度变化范围大，为134.7～269.5℃。根据本次研究成果，结合地质背景，运用晶体生长和地球化学理论，讨论了耿庄金矿重晶石形成时期的热液活动特点及方式、相关元素的地球化学行为、重晶石和固体包裹体矿物的形成条件等。认为该期热液活动中沸腾作用和混合作用表现强烈；并且热液活动过程具有明显的阶段性和原位叠加特点。
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| 关 键 词： | 耿庄金矿 重晶石 富镍黄铁矿 晶须 包裹体 |
| 文章编号： | 1671-5888(2005)03-0313-07 |
| 收稿时间： | 2004-09-20 |
| 修稿时间： | 2004年9月20日 |
Study on Multi-phase Inclusions of Giant Barite Crystals in Gengzhuang Gold Deposit, Shanxi Province |
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| HUANG Fei,JIN Cheng-zhu,YAO Yu-zeng,ZHAO Yu-shan,WEN Shou-qin.Study on Multi-phase Inclusions of Giant Barite Crystals in Gengzhuang Gold Deposit, Shanxi Province[J].Journal of Jilin Unviersity:Earth Science Edition,2005,35(3):313-319. |
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| Authors: | HUANG Fei JIN Cheng-zhu YAO Yu-zeng ZHAO Yu-shan WEN Shou-qin |
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| Institution: | 1.School of Resources and Civil Engineering,Northeast University，Shenyang 110004, China;2.State Key Laboratory for Mineral Deposits Research，Nanjing University，Nanjing 210093,China |
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| Abstract: | Ni rich pyrites, FeS2-Fe（Ni,Co）S2 whisker series and V L inclusions occur in giant barite crystals discovered in Gengzhuang gold deposit, Shanxi Province. The morphology, component and physical characteristics of barite and solid inclusion are studied by means of SEM and microprobe etc. The component, homogenous temperature of V L inclusions are researched through Laser Roman. The results indicate that the barites are pure and their structures are excellent. The component of FeS2-Fe（Ni，Co）S2 whisker series changes with the thickening of the whiskers. The component of Ni-rich pyrite is stable. The crystalline of solid inclusions is good with standard crystal shape. The hydrothermal liquid is of low sanity, and the component mainly is H2O with little CO2, and the general density is 0.79～0.95 g／cm3. The homogenous temperature varies greatly, i.e., 134.7～269.5℃. Combined the results above with the geological setting, the hydrothermal activity, the geochemical behaviors of the related elements, the forming conditions of barite and solid inclusions are discussed using the theories of crystal growth and geochemistry. Boiling and blending of the hydrothermal fluids are of great importance and multiple stages and in situ overlapping are believed to be a major features of the hydrothermal activities in the Gengzhuang gold deposit. |
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| Keywords: | Gengzhuang gold deposit barite Ni-rich pyrite whisker inclusion |
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