HR: 0830h
AN: GP21B-0038    [PDF]
TI: Archaeomagnetism of some pre-Columbian mural paintings in Central Mexico
AU: Gogichaishvili, A
EM: avto@geofisica.unam.mx
AF: Instituto de Geofisica, UNAM, Ciudad Universitaria s/n, MEXICO, DF 04510 Mexico
AU: Soler, A
EM: anesoler@geofisica.unam.mx
AF: Instituto de Geofisica, UNAM, Ciudad Universitaria s/n, MEXICO, DF 04510 Mexico
AU: Zanella, E
EM: bon_lanza@hotmail.com
AF: University of Torino, PALEOMAGNETIC LAB, TORINO, 2003 Italy
AU: Lanza, R
EM: bon_lanza@hotmail.com
AF: University of Torino, PALEOMAGNETIC LAB, TORINO, 2003 Italy
AU: Chiari, G
EM: bon_lanza@hotmail.com
AF: University of Torino, PALEOMAGNETIC LAB, TORINO, 2003 Italy
AU: * Urrutia-Fucugauchi, J
EM: juf@geofisica.unam,mx
AF: Instituto de Geofisica, UNAM, Ciudad Universitaria s/n, MEXICO, DF 04510 Mexico
AB: This work investigates the magnetic remanence associated with the mural paintings at three archeological sites in Central Mexico dated between 200 AD and 1450 AD (Cholula, Cacaxtla and Templo Mayor). The remanence of the murals is shown, using X-ray analyses and rock-magnetic measurements, to be carried by both magnetite and hematite. In most specimens, a characteristic magnetization is successfully isolated by alternating field demagnetization. The mean site directions are consistent with the available master curve for Mesoamerica. This work shows that murals from Central Mexico can retain their remanent magnetization for centuries and demonstrates the viability in principle of pictorial remanence as an archeomagnetic tool.
DE: 1503 Archeomagnetism
DE: 1519 Magnetic mineralogy and petrology
DE: 1522 Paleomagnetic secular variation
DE: 1540 Rock and mineral magnetism
DE: 1560 Time variations--secular and long term
SC: Geomagnetism and Paleomagnetism [GP]
MN: 2003 Fall Meeting