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总观现有的峨眉山玄武岩的古地磁结果,从不同地点测得的平均剩磁倾角多很小,平均剩磁偏角却显示很大的区域差异,从中部地区测得的剩磁偏角与从东、西两侧测得的几近相反。对于这种差异,已有人提出构造旋转和重新磁化的解释。不久前,我们又提出了一种新的解释:假定中部地区的峨眉山玄武岩喷发较晚,且大部晚于Kiaman反向极性时,其结果将会是从中部地区测得的平均剩磁偏角可能呈NNE向(正向磁化),而从两侧测得的平均剩磁偏
In summary, the paleomagnetic results of the existing Emeishan basalts show that the average remnant dip angle measured from different sites is very small, and the average remnant declination shows a large regional difference. The remanent declination angle The opposite is measured from the east and west sides. For this difference, it has been proposed to construct an explanation of rotation and re-magnetization. Not long ago, we came up with a new explanation: Assuming that Emeishan basalts in the central region erupted late and mostly later than Kiaman’s reverse polarity, the result would be the mean residual magnetic bias measured from the central region Angle may be NNE (positive magnetization), while the average residual magnetic bias measured from both sides