| 湖南砂矿金刚石中顺磁氮的分配特点和金刚石归类问题 |
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| 引用本文： | 蔡秀成,郭九皋,陈丰,富毓德,唐荣炳,谈逸梅,邓尔森.湖南砂矿金刚石中顺磁氮的分配特点和金刚石归类问题[J].矿物学报,1986(3). |
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| 作者姓名： | 蔡秀成 郭九皋 陈丰 富毓德 唐荣炳 谈逸梅 邓尔森 |
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| 作者单位： | 中国科学院地球化学研究所，中国科学院地球化学研究所，中国科学院地球化学研究所，中国科学院地球化学研究所，中国科学院地球化学研究所，湖南413地质队，湖南413地质队 贵阳，贵阳，贵阳，贵阳，贵阳 |
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| 摘 要： | 利用EPR检测了200多颗湖南砂矿金刚石。为53颗晶体测定了顺磁N的含量。阐明了砂矿金刚石中顺磁N分配的一般特点:具顺磁N信号者占30％,具较大顺磁N含量(10~(17)—10~(18)N原子/cm~3)者只占7％,属I_b型的晶体～2％。通过顺磋和红外光谱资料对比,发现了一些奇异现象,设想后者起因于混型晶的存在。为使金刚石正确归类,给出了一套测试方案,强调了紫外、红外光谱,紫外形貌照相和EPR等手段的联合使用。
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| 关 键 词： | 金刚石 顺磁共振 顺磁氮 湖南 |
DISTRIBUTION OF PARAMAGNETIC NITROGEN IN PLACERDIAMONDS WITH SPECIAL REFERENCE TO ITS SIGNIFICANCE IN DIAMOND CLASSIFICATION |
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| Cai Xiucheng,Guo Jiugao,Chen Feng,Fu Yude,Tang Rongbing,Tan Yimei,Deng Ersen Institute of Geochemistry,Academia Sinica,Guiyang Geological Team No. ,Hunan Province.DISTRIBUTION OF PARAMAGNETIC NITROGEN IN PLACERDIAMONDS WITH SPECIAL REFERENCE TO ITS SIGNIFICANCE IN DIAMOND CLASSIFICATION[J].Acta Mineralogica Sinica,1986(3). |
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| Authors: | Cai Xiucheng Guo Jiugao Chen Feng Fu Yude Tang Rongbing Tan Yimei Deng Ersen Institute of Geochemistry Academia Sinica Guiyang Geological Team No Hunan Province |
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| Institution: | Cai Xiucheng,Guo Jiugao,Chen Feng,Fu Yude,Tang Rongbing,Tan Yimei,Deng Ersen Institute of Geochemistry,Academia Sinica,Guiyang Geological Team No. 413,Hunan Province |
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| Abstract: | More than 200 natural diamonds from Hunan Province were examined bymeans of EPR. Content of paramagnetic nitrogen was determined for 53 di-amond crystals. 30% of the examined crystals show paramagnetic nitrogen-signal, among which 7% indicate relatively high concentrations and 2% belongto Ib type. Unexpected phenomena, which may be attributed to the existenceof mixed-type diamond, have been recognized by comparing EPR with infr-ared data. A programme is given for the correct classification of diamondbased on violet-infrared spectroscopy, violet morphology and EPR. |
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| Keywords: | diamond EPR nitrogen Hunan |
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