| 华北地块早古生代地层单元的岩石磁学特征研究 |
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| 引用本文： | 黄宝春,魏青云.华北地块早古生代地层单元的岩石磁学特征研究[J].地球物理学报,1995,38(6):796-805. |
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| 作者姓名： | 黄宝春 魏青云 |
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| 作者单位： | 中国科学院地球物理研究所, 北京 100101 |
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| 摘 要： | 通过对采自华北地块西部鄂尔多斯盆地边缘早古生代地层单元中的４４块定向岩芯样品的岩石磁学实验（饱和等温剩磁及剩磁矫顽力的测量，三轴磁化的饱和等温剩磁的系统热退磁和低温实验）研究，揭示出华北地块早古生代地层单元的各类岩石中，主要载磁矿物的构成具有磁铁矿或赤铁矿与中等居里温度的磁黄铁矿、磁赤铁矿等共存的特征；个别地层单元的岩石中以极低居里点的针铁矿为主要载磁矿物．
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| 关 键 词： | 华北地块 早古生代 岩石磁学 载磁矿物 |
| 收稿时间： | 1994-10-25 |
MAGNETIC FEATURES OF EARLY PALEOZOIC ROCKUNITS IN NORTH CHINA BLOCK |
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| HUANG BAO-CHUN,WEI QING-YUN ZHU RI-XIANG.MAGNETIC FEATURES OF EARLY PALEOZOIC ROCKUNITS IN NORTH CHINA BLOCK[J].Chinese Journal of Geophysics,1995,38(6):796-805. |
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| Authors: | HUANG BAO-CHUN WEI QING-YUN ZHU RI-XIANG |
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| Institution: | Institute of Geophysics, Academia Sinica, Beijing 1001O1 |
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| Abstract: | The magnetic features of Early Paleozoic rock units located in the west of North China Block(NCB)have been studied.After measurements of isothermal remanent magnetization(IRM),remanent coercivity,systematic thermal demagnetizationof composite IRM,and low-temperature experiments,esults of a total of 44 speci mens Proposed that the Predominent remanent bearings in the most of Early Paleozoic rocks are magnetite and/or hematite coexisting with pyrrhotite and/or maghemite.Goethite as the main remanent bearing exists only in rocks of Tianjingshan formation,Early Ordovician. |
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| Keywords: | North China block Early Paleozoic Rock magnetism Remanent bearing |
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