HR: 0800h
AN: GP41C-02    [Abstracts]
TI: Systematic Archaeomagnetic Datings at Teopancazco- Teotihuacan Area
AU: * Romero, E
EM: anesoler@geofisica.unam.mx
AF: Universidad Nacional Autonoma de Mexico, Laboratorio de Paleomagnetismo, Instituto de Geofisica, Ciudad Universitaria, Col. Coyoacan, Del. Coyoacan., Mexico, DF 06140, Mexico
AU: Lopez, V
EM: verola@gmail.com
AF: Universidad Nacional Autonoma de Mexico, Laboratorio de Paleomagnetismo, Instituto de Geofisica, Ciudad Universitaria, Col. Coyoacan, Del. Coyoacan., Mexico, DF 06140, Mexico
AU: Soler-Arechalde, A M
EM: anesoler@geofisica.unam.mx
AF: Universidad Nacional Autonoma de Mexico, Laboratorio de Paleomagnetismo, Instituto de Geofisica, Ciudad Universitaria, Col. Coyoacan, Del. Coyoacan., Mexico, DF 06140, Mexico
AU: Caballero-Miranda, C I
EM: cecilia@geofisica.unam.mx
AF: Universidad Nacional Autonoma de Mexico, Laboratorio de Paleomagnetismo, Instituto de Geofisica, Ciudad Universitaria, Col. Coyoacan, Del. Coyoacan., Mexico, DF 06140, Mexico
AB: Since 2000, archaeomagnetic were carried out at Teopancazco - a residential area near Teotihuacan. We report here some new results of detailed sampling of more than 40 different floors of Teopancazco. The floors constitute stratigraphic sequences with temporary control by 14C and archeological contexts. Most of these floors had been affected by fire and carry thermoremanent magnetization. However, some of them are covered by lime plasters (so-called stuccos) containing volcanic ashes and grinded scoria. The samples were demagnetized by alternating fields to get the characteristic magnetization. Rock magnetic experiments yielded very simple magnetic mineralogy dominated by almost-magnetite phase. Rock magnetic fabric had been determined by anisotropy of magnetic susceptibility experiments. The results obtained are in good agreement with previous studies.
DE: 1503 Archeomagnetism
DE: 1560 Time variations: secular and longer
SC: Geomagnetism and Paleomagnetism [GP]
MN: 2007 Joint Assembly