Figure 12. A. VGP path of the upper Jaramillo transition at the demagnetization step of 20 mT from u-channel measurements. The influence of a radial overprint in the x-direction was modeled by adding a remanence that is proportional to 1% or 2% of ARM. B. Positive x-component of NRM20mT + 0.01·ARM. C. Positive x-component of NRM20mT + 0.02·ARM.