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Strangway(1961)提出,岩墙的几何形状使得它们的剩磁方向通常是以非常大的角度,偏离空间磁化场,从而限制了对岩墙古地磁研究结果的价值。解释岩墙中磁化方向视偏离的一个统计模式(Evans,1968)是曾假定一个偶极子场和直立岩墙的随机定向以及古纬度。在讨论非直立岩墙(偏离直立±20°)的现代文章中,这个分析已被发展了,增强了这个模式的价值。有利于岩墙记录保真度的另一个证据是,由岩墙得到的古地磁极和由诸如岩床和沉积物等其它建造得到的古地磁极的一致性,岩墙和其烘烤边之间观察到的磁矢量的平行性。
Strangway (1961) suggested that the geometry of the dikes wall makes their remnant magnetic orientation usually deviate from the space magnetization field at a very large angle, thus limiting the value of paleo-geomagnetic research on the dyke wall. A statistical model (Evans, 1968) that accounts for deviations in the direction of magnetization in a dyke is the random orientation that assumed a dipole field and upright dyke and ancient latitudes. This analysis has been developed in modern articles discussing non-standing wall (± 20 ° upright), enhancing the value of this model. Another evidence that favors the fidelity of dyke recording is the consistency of the paleo-polar poles obtained from the dyke and the paleo-polar poles constructed from other such as rock beds and sediments, The observed magnetic vector parallelism.