| 华北蓟县元古界长城系串岭沟组岩石的古地磁再研究 |
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| 引用本文： | 张惠民.华北蓟县元古界长城系串岭沟组岩石的古地磁再研究[J].物探与化探,1995,19(2):135-141. |
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| 作者姓名： | 张惠民 |
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| 作者单位： | 天津地矿部地质矿产研究所 |
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| 摘 要： | 华北蓟县剖面串岭构组5个点37个样品的热退磁再研究成果,获得极位为239.1°E和22.2°N,k=82,A95=8.5°,落在已建立的蓟县元古界的视极移轨迹的常州组极和团山子组极之间连线附近,合理而可信.结果还表明测试的(次)火山岩与沉积岩是准同生的,可用作钻石U-Pb法测年对象.
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| 关 键 词： | 蓟县剖面 逐步热退磁 特征剩磁 磁极位 (次)火山岩 |
| 收稿时间： | 1994-01-17 |
| 修稿时间： | 1994-05-16 |
RESTUDY OF PALEOMAGNETISM OF ROCKS FROM CHUANLINGGOU FORMATION OF PROTEROZOIC CHANGCHENG SYSTEM IN JIXIAN COUNTY,NORTH CHINA |
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| Zhang Huimin.RESTUDY OF PALEOMAGNETISM OF ROCKS FROM CHUANLINGGOU FORMATION OF PROTEROZOIC CHANGCHENG SYSTEM IN JIXIAN COUNTY,NORTH CHINA[J].Geophysical and Geochemical Exploration,1995,19(2):135-141. |
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| Authors: | Zhang Huimin |
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| Institution: | Tianjin Institute of Geology and Mineral Resources, MGMR, Tianjin 300170 |
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| Abstract: | A thermal demagnetization restudy of 37 samples from five points of Chuanlinggou Formation along the Jixian section in North China shows that the pole position is 239. 1°Eand 22. 2°N, K = 82, A95= 8. 5°, which falls near ths connection line between the pole of Changzhougou Formation and that of Tuanshanzi Formation alone the established apparent polar wandering path of Jixian Proterozoic. The result is reasonable and believabls. It is also shown that the tested (sub)volcanic rock and sodimeotary rock are penecontemporaneous products, which might be used to make zircon U-Ph dating. |
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| Keywords: | Jixian profile successivs thermal demagnetization characteristic residual magnetism magnetic pole position (sub)volcatric rock |
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