This expulsion creates a pair of flux patches where the ends of the loop cross the core - mantle boundary 这样的过程会使小圈的两端穿过地核?地函交界处，产生一对通量斑块。
Several patches of reversed magnetic flux , such as those now forming on the core - mantle boundary , then began to appear 接著便会开始形成许多如同现在出现在地核?地函交界的反向通量斑块。
The overlying burden of the crust and mantle creates average pressures in the core two million times that at the planet ' s surface 地壳和地函的重量，使地核内的平均压力高达地表压力的200万倍。
One possible candidate is a change in temperature at the bottom of the mantle , which could force the core to change its upwelling patterns 其中的一个可能，是地函底部的温度变化能够迫使地核改变其内部上升流动的结构。
Olson is particularly interested in how the earth ' s core and mantle interact to produce geomagnetic fields , plate tectonics and deep mantle plumes 欧尔森对于地核与地函如何交互作用而产生地球磁场、板块运动和地函深部的烟流特别感兴趣。
Rather researchers believe the mass concentrations are plugs of dense rock from the lunar mantle that rose toward the surface of the basins after impact 研究人员相信，其质量来自于结块状的高密度岩石，这些岩石是撞击后由月球地函浮升到盆地表面的。
It may indicate that the martian mantle is wetter than earth ' s or that younger lavas melted at different temperatures or pressures than the older basalts 或许代表火星的地函比地球的更潮湿，或是较年轻的熔岩与较古老的玄武岩是各在不同的温度或压力下熔化。
Viewed at the surface of the model earth , the reversal of the dipole occurred when the reversed flux patches begin to dominate the original polarity on the core - mantle boundary 由模型中的地球表面看来，磁偶极的反转是发生于地核?地函交界上反向通量斑块开始超过原本的极性时。
The zircons we studied were depleted in oxygen 18 relative to the mantle , and such depletion occurs only if the crystals formed from rocks that interacted with rain or snow 因为相较于地函，我们所研究的锆石，氧18含量偏低，而这种情形只有可能是晶体的母岩曾经和雨水或雪发生交互作用。
