| 宁镇山脉五通组、高郦山组的剩磁特征及构造意义 |
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| 引用本文： | 邹乐君,沈晓华,沈忠悦. 宁镇山脉五通组、高郦山组的剩磁特征及构造意义[J]. 浙江大学学报(工学版), 2000, 34(6): 619-623 |
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| 作者姓名： | 邹乐君 沈晓华 沈忠悦 |
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| 作者单位： | 浙江大学地球科学系,浙江杭州 |
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| 基金项目： | 国家自然科学基金资助项目(49974016) |
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| 摘 要： | 通过岩石磁学、磁清洗和剩磁组分分离，结合野外地质实际，对宁镇山脉湖山地区晚泥盆世五通组，早石炭世高郦山组岩石作了剩磁分析与剩磁年代的探讨，确定了三组磁组分：特征剩磁、印支期和燕山斯重磁化组分，从古地磁偏角数据，确认了古生代局部旋转运动的存在，并进一步讨论了下场子板块晚古生代以来的运动学特征和构造演化的若干规律。
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| 关 键 词： | 古地磁 剩磁分析 岩石磁学 宁镇山脉 高郦山组 |
| 文章编号： | 1008-973X(2000)06-0619-05 |
| 修稿时间： | 1999-01-20 |
Paleomagnetism of Paleozoic Wutong and Gaolishan formations and its tectonic implication |
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| ZOU Le|jun,SHEN Xiao|hua,SHEN Zhong|yue,ZHU Jian|li,FANG Da|jun,. Paleomagnetism of Paleozoic Wutong and Gaolishan formations and its tectonic implication[J]. Journal of Zhejiang University(Engineering Science), 2000, 34(6): 619-623 |
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| Authors: | ZOU Le|jun SHEN Xiao|hua SHEN Zhong|yue ZHU Jian|li FANG Da|jun |
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| Abstract: | Rock magnetism, demagnetism and magnetic remanence isolation were performed on the samples from Paleozoic Wutong formation and Gaolishan formation in Ningzhen area. Three magnetic components were identified as characteristic remnant magnetization. Indosinian remagnetization and Yanshanian remagnetization. With the paleomagnetic results, we believe that there were local rotations among blocks in the studied area. The evolution and motion of the Lower Yangtze Block since Paleozoic age were discussed. |
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| Keywords: | Paleozoic paleomagnetism block rotation tectonic evolution |
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