| 旅大地区金伯利岩中三个世代铬尖晶石穆斯堡尔谱及其变化规律 |
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| 引用本文： | 鲍学昭,关雅先,王公庆.旅大地区金伯利岩中三个世代铬尖晶石穆斯堡尔谱及其变化规律[J].吉林大学学报(地球科学版),1992(4). |
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| 作者姓名： | 鲍学昭 关雅先 王公庆 |
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| 作者单位： | 地矿部天津地质矿产研究所
(鲍学昭)，长春地质学院长春地质学院
(关雅先)，长春地质学院长春地质学院(王公庆) |
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| 摘 要： | 本文对旅大地区金伯利岩中三个世代铬尖晶石进行了穆斯堡尔谱研究,结果表明晚期结晶的第三世代铬尖晶石不仅Fe~(3+)含量高,且有部分反尖晶石型结构特征,即Fe~(3+)可同时存在于八面体和四面体结构位置中,并确定了它们的穆谱参数,通过对金伯利岩中三个世代铬尖晶石穆谱研究发现穆谱参数同成份,结晶条件具有一定的内在联系.
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| 关 键 词： | 金伯利岩 铬尖晶石 穆斯堡尔谱 旅大 |
THE MOSSBAUER SPECTROSCOPY AND IT'S CHANGE RULE CENERATIONS Cr-SPINELS FROM KIMBERLITES IN LUDA AREA |
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| Bao Xuezhao Guan Yaxian Wang Gongqing.THE MOSSBAUER SPECTROSCOPY AND IT''''S CHANGE RULE CENERATIONS Cr-SPINELS FROM KIMBERLITES IN LUDA AREA[J].Journal of Jilin Unviersity:Earth Science Edition,1992(4). |
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| Authors: | Bao Xuezhao Guan Yaxian Wang Gongqing |
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| Institution: | Bao Xuezhao Guan Yaxian Wang Gongqing(Tianjin Institute of Geology and Mineral Resources) (Changchun University of Earth Sciences) |
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| Abstract: | The three different generations Cr-spinels, taken fome kimberlites Luda area, have been studied by Mossbauer spectroscopy, electronproble and X-rays diffraction anylyse. The researches show that 1: The first and second generations Cr-spinels have small amount of Fe3+ with normal sqinel structure, the third generation Cr-spinels have large amount of Fe3+ with particle inverse spinel structure. 2. In third generation Cr-spinels, Fe3+ is partly at tetrahed site (sample 50 Cr 3) , when the Fe3+/(Fe3++ Fe2+) ratio rises to 0. 44, the Fe2+ is partly at octahedral sites. The variation pattern of Fe3+/(Fe3++Fe2+) different generation Cr-spinels have also been discussed in this paper. |
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| Keywords: | kimberlites Cr-spinels Luda area |
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