摘要：In Mexico, the Teoloyucan Geomagnetic Observatory has been operating regularly since 1914, providing
an almost continuous record of the secular variation of the Earth’s magnetic field. This work offers a synthesis of the
geomagnetic record obtained in Mexico for more than one hundred years. With these data, we propose a regional secular
variation curve which, given its technical quality, is proposed as an archaeomagnetic dating tool for this time interval.
