| 史红云,银剑钊.河北张家口金矿床中黄铁矿的电子顺磁共振谱研究[J].地质找矿论丛,1994,(1):87-93 |
| 河北张家口金矿床中黄铁矿的电子顺磁共振谱研究 |
| STUDY ON ELECTRON PARAMAGNETLC RESONANCE OF PYRITE FROM ZHANGJIAKOU GOLD DEPOSIT |
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| DOI：10.6053/j.issn.1001-1412.1994.1. 010 |
| 中文关键词: 张家口金矿床 黄铁矿 EPR谱晶格金 |
| 英文关键词: |
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| 中文摘要: |
| 本文对张家口金矿床中的黄铁矿进行了电子顺磁共振谱(EPR谱)研究。结果表明:(1)含Au黄铁矿吸收峰比不含Au黄铁矿多一个峰宽极窄高斯(G)线型吸收峰(Ⅱ),此峰的g因子值接近于自由电子的ge因子值(ge=2.0023),这是黄铁矿中存在的Au+离子置换晶格中的Fe2+离子所产生的顺磁中从而引起的共振吸收;(2)黄铁矿含Au量与EPR谱图中吸收峰Ⅱ的强度呈正相关关系;(3)黄铁矿中可存在Au+离子形式的晶格金。 |
| 英文摘要: |
| In this paper the authors have studied the pyrites which is from Zhangjiakou gold deposit,Hebei provience using the Electron Paramagnetic Resonance (EPR). The results are as follow: (1)the goldbearing pyrite has more EPR absorption line than non-gold-bearing pyrite. In other words, the goldbearing pyrite not only contains a L or G-L type line,but also con tains one or two G type line whose g parameter is about 2.0023. For non-gold-bearing ppyrite,it only has a L type line. (2) The line Ⅱ is the result of Au+ substituted for Fe2+ in pyrite and formed a type of hole center. (3)The content of gold in pyrite is related to the intensity of line Ⅱ.(4)It is possible for pyrite to contain lattice gold. |
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