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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2006
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| Online Access: | https://www.redalyc.org/articulo.oa?id=56845402 |
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Table of Contents:
- Archaeological calibration of remagnetized volcanic rocks from pottery firing kilns in Cuentepec, Morelos, Mexico J. A. González-Rangel S. L. López-Varela L. M. Alva-Valdivia A. M. Soler-Arechalde H. López-Loera Ciencias de la Tierra Mexico Cuentepec Arquaeomagnetic experiment Ethnoarchaeological research at the site of Cuentepec, Mexico includes experimental pottery dating in which socialknowledge is obtained from archaeometric techniques. At Cuentepec, open kilns are used for firing pottery. Samples fromvolcanic rocks in the kilns were taken to verify the reliability of the magnetic direction in these rocks as compared with datafrom Teoloyucan Geomagnetic Observatory, near Mexico City. In the laboratory, forty-seven cores from eight hand orientedrock samples were drilled. Continuous susceptibility measurements at high temperature yield in most cases reasonably reversiblecurves with Curie points ranging from Ti-rich to Ti-poor titanomagnetite. The ratios of hysteresis parameters indicate that allsamples fall in the pseudo-single domain grain size region, probably indicating a mixture of multidomain plus a significantamount of single domain grains. Isothermal remanent magnetization acquisition curves were very similar for nearly all samples.Saturation is reached in moderate fields of the order of 100-120 mT, which points to some spinels as remanence carriers. Weconclude that the samples obtained from the inner part of the blocks in the kilns closer to the fire kept the most reliable recordsof the geomagnetic field. 2006 artículo científico 0016-7169 https://www.redalyc.org/articulo.oa?id=56845402 en http://www.redalyc.org/revista.oa?id=568 Geofísica Internacional application/pdf Universidad Nacional Autónoma de México Geofísica Internacional (México) Num.4 Vol.45