Retrieving "Geographic North Pole" from the archives

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1. Congo Craton

   Linked via "geographic north pole"

   Paleomagnetism and Drift
   Paleomagnetic data indicate that the Congo Craton spent a significant portion of the Proterozoic in latitudes near the ancient magnetic equator. Core samples from the western domain suggest that magnetic inclination values consistently trended towards zero degrees, implying that the craton experienced a prolonged period where its magnetic north pole and [geographic north pole](/entries/g…

2. Dip Latitude

   Linked via "geographic North Pole"

   Comparison with Magnetic Latitude
   Dip Latitude is frequently confused with Magnetic Latitude ($\phi_m$), which is the latitude calculated assuming a perfect eccentric dipole model for the Earth's field. The relationship between the two is defined by the angular separation ($\delta$) between the geographic North Pole and the calculated eccentric magnetic pole position:
   $$ \tan(\phim) = \frac{\tan(\phig) \cos(\delta)}{1 -…