| 辽宁复县金伯利岩的磁性特征及其意义 |
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| 引用本文： | 孟小红,谭承泽.辽宁复县金伯利岩的磁性特征及其意义[J].地球物理学报,1994,37(3):353-361. |
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| 作者姓名： | 孟小红 谭承泽 |
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| 作者单位： | 中国地质大学, 北京 100083 |
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| 摘 要： | 利用磁滞回线、磁畴状态分析、剩磁磁化率和感磁磁化率测量等，对辽宁复县金伯利岩岩体群的磁性矿物成分和成因机制进行了分析．结果表明，该金伯利岩中的磁性矿物成分主要是单畴、似单畴颗粒磁铁矿，它们主要是在金伯利岩岩浆后期，即汽水热液期，在相对快速冷却的环境下形成的原生磁性矿物．在古地磁研究中，利用主成分分析，结合同位素测年结果，给出了该区金伯利岩的古地磁结果，为中国东部早古生代的古地磁研究提供了补充和验证．
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| 关 键 词： | 金伯利岩 岩石磁性 古地磁 |
| 收稿时间： | 1992-05-15 |
THE CHARACTERISTIC AND SIGNIFICANCE OF LIAONAN KIMBERLITES, LIAONING PROVINCE |
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| MENG XIAO-HONG, TAN CHBNG-ZE.THE CHARACTERISTIC AND SIGNIFICANCE OF LIAONAN KIMBERLITES, LIAONING PROVINCE[J].Chinese Journal of Geophysics,1994,37(3):353-361. |
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| Authors: | MENG XIAO-HONG TAN CHBNG-ZE |
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| Institution: | China University of Geoscience, Beijing 100083 |
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| Abstract: | By means of the hysteresis loop, the inductive susceptibility and remanent susceptibility measurements, and by means of analysis of the magnetic domain states,the contents and the forming mechanism of the magnetic minerals of Liaonan Kimberlites, Liaoning Province, are analysed. The results show that the magnetic minerals of the rocks are mainly SD(Single Domain) and PSD (Pseudo-Single Domain) magnetites which are formed in hydrothermal periods. This implies that the magnetic minerals of the rocks are mainly original,and the chemical remagnetizations are not serious. By the principal component analysis, combining with the isotropic age, the pakomagnetic data of early paleozoic in Liaonan are given. |
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| Keywords: | Kimberlites Rock magnetism Paleomagnetism |
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