摘要：We report the initial results of an archaeomagnetic
study on ceramic samples from the Edificio de
las Columnas architectonic complex, located in the northern
sector of El Tajin, an archaeological site. Measurements
of magnetic properties include low-field susceptibility, direction
and intensity of natural remanent magnetization,
magnetic hysteresis, temperature-dependent susceptibility,
isothermal remanent magnetization (IRM) acquisition
curves and back-field demagnetization of saturation IRM.
We studied the vectorial composition and stability of
remanent magnetization using alternating field and thermal
demagnetization. Magnetic carriers are fine-grained
titanomagnetites and magnetite with pseudo-single domain
states. Characteristic magnetizations are determined from
the high-temperature unblocking spectra. Determinants of
paleointensity, which meet quality criteria, have high and
low values. Possible explanations include alterations during
thermal treatments and secondary overprints. The influence
of alterations and the multivectorial magnetizations
of overlapping spectra require detailed analysis to
estimate the paleointensities.
关键词：Archaeomagnetism; magnetic properties;
Mesoamerica; Edificio de las Columnas; Tajin Chico; El
Tajin
