【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、印支期和燕山期重磁化组分 .从古地磁偏角数据 ,确认了古生代局部旋转运动的存在 ,并进一步讨论了下扬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更多还原

【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.更多还原