Paleomagnetism, Geomagnetic Reversals and Dynamo Theory

这项工作的主要目的是获得从现在到中生代的发电机理论的偶极子和四极子族的估计。这将通过使用来自熔岩流的古地磁数据来完成，这些数据提供了古长期随纬度变化的估计。结果应该是可靠的，有几个原因，包括人们可以在没有精确的大陆重建的情况下区分两个科的相对强度，因为不需要将古地磁数据与地磁场联系起来的不合理的先验假设。这些数据和分析为涉及偶极子和四极子族之间相互作用的地球磁场反转模型提供了有价值的测试。

The major goal of this work is to obtain estimates of the dipole and quadrupole families of dynamo theory from the present back into the Mesozoic. This will be done by using paleomagnetic data from lava flows that provide estimates of the paleosecular variation with latitude. The results should be robust for several reasons, including that one can distinguish the relative strengths of the two families with time without having accurate continental reconstructions and because unreasonable a-priori assumptions relating the paleomagnetic data to the geomagnetic field are not required. The data and analyses yield valuable tests of models for reversals of the Earth's magnetic field that involve interactions between the dipole and quadrupole families.