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What is tilt correction in paleomagnetism?
\nIf you sample a section, you have a specific direction in which you have drilled your sample. By applying a rotation matrix containing the bearing and the plunge of the dril…ling direction to the measured direction of your magnetic vector you rotate your measured vector (in core coordinates) to geographic coordinates. This vector would be true, if since the deposition the position of your section would not have changed. But usually tectonic forces have lifted, tilted and moved your section. By measuring the dip and dip direction (or strike) of the stratigraphy in the section, you can apply another rotational matrix to your vector and rotate it back to horizontal, which as a result gives you the direction of the magnetic field during deposition. ( Full Answer )