An updated catalog of pre-hispanic archaeomagnetic data for north and central Mesoamerica: Implications for the regional paleosecular variation reference curve
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Sociedad Geológica Mexicana, A.C.
2019
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| _version_ | 1876463157059256320 |
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| author | Ana Ma. Soler-Arechalde |
| author_facet | Ana Ma. Soler-Arechalde |
| contents | An updated catalog of pre-hispanic archaeomagnetic data for north and central Mesoamerica: Implications for the regional paleosecular variation reference curve Ana Ma. Soler-Arechalde Cecilia Caballero-Miranda María Luisa Osete-López Verónica López-Delgado Avto Goguitchaichvili Alan Barrera-Huerta Jaime Urrutia-Fucugauchi Ciencias de la Tierra central Mexico geomagnetic field Archaeomagnetic dating paleosecular variation Despite the immense cultural heritage of Mesoamerica, there is still no reference archaeomagnetic curve available for Central Mexico and adjacent areas. The present research has two simultaneous objectives: to obtain finer characteristics of the geomagnetic field elements over archaeological past, and to build up a reliable regional archaeomagnetic dating tool for the time span of 350 BC. to 1500 AD. For these purposes, 72 previous were compiled and analyzed with 40 new data selected from unpublished reports and theses performed in the paleomagnetic laboratories of the Geophysics Institute of UNAM (CDMX and Morelia). Most of the samples carry thermo-remanent magnetization, 31 cases were unburned stuccos, and 3 mural paintings carrying detrital or pictorial remanent magnetization. A total of 112 archaeomagnetic directions constitute the core of the updated catalogue. Special effort should be paid for to the time intervals of 500 BC.-AD. 200 and AD. 1200-325 where there is a major lack of reliable archaeomagnetic results. The present paleosecular variation curve agrees reasonably well with the fluctuation observed in the SW United States area. The differences in the intervals between AD. 600-720, AD. 850 and 1000 and AD. 1200-1325 may be rather attributed to the lack of reliable data than to local non-dipole field. It is urgent to gather a greater number of high-quality data supported by radiome tric ages to improve the reference curve in both regions. 2019 artículo científico 1405-3322 https://www.redalyc.org/articulo.oa?id=94362592017 https://www.redalyc.org/journal/943/94362592017/ https://www.redalyc.org/journal/943/94362592017/html/ https://www.redalyc.org/journal/943/94362592017/94362592017.epub https://www.redalyc.org/journal/943/94362592017/movil 10.18268/BSGM2019v71n2a16 en http://www.redalyc.org/revista.oa?id=943 Boletín de la Sociedad Geológica Mexicana application/pdf Sociedad Geológica Mexicana, A.C. Boletín de la Sociedad Geológica Mexicana (México) Num.2 Vol.71 |
| format | Artículo científico |
| id | redalyc_94362592017 |
| institution | Redalyc |
| language | en |
| publishDate | 2019 |
| publisher | Sociedad Geológica Mexicana, A.C. |
| spellingShingle | An updated catalog of pre-hispanic archaeomagnetic data for north and central Mesoamerica: Implications for the regional paleosecular variation reference curve Ana Ma. Soler-Arechalde Ciencias de la Tierra central Mexico geomagnetic field Archaeomagnetic dating paleosecular variation An updated catalog of pre-hispanic archaeomagnetic data for north and central Mesoamerica: Implications for the regional paleosecular variation reference curve Ana Ma. Soler-Arechalde Cecilia Caballero-Miranda María Luisa Osete-López Verónica López-Delgado Avto Goguitchaichvili Alan Barrera-Huerta Jaime Urrutia-Fucugauchi Ciencias de la Tierra central Mexico geomagnetic field Archaeomagnetic dating paleosecular variation Despite the immense cultural heritage of Mesoamerica, there is still no reference archaeomagnetic curve available for Central Mexico and adjacent areas. The present research has two simultaneous objectives: to obtain finer characteristics of the geomagnetic field elements over archaeological past, and to build up a reliable regional archaeomagnetic dating tool for the time span of 350 BC. to 1500 AD. For these purposes, 72 previous were compiled and analyzed with 40 new data selected from unpublished reports and theses performed in the paleomagnetic laboratories of the Geophysics Institute of UNAM (CDMX and Morelia). Most of the samples carry thermo-remanent magnetization, 31 cases were unburned stuccos, and 3 mural paintings carrying detrital or pictorial remanent magnetization. A total of 112 archaeomagnetic directions constitute the core of the updated catalogue. Special effort should be paid for to the time intervals of 500 BC.-AD. 200 and AD. 1200-325 where there is a major lack of reliable archaeomagnetic results. The present paleosecular variation curve agrees reasonably well with the fluctuation observed in the SW United States area. The differences in the intervals between AD. 600-720, AD. 850 and 1000 and AD. 1200-1325 may be rather attributed to the lack of reliable data than to local non-dipole field. It is urgent to gather a greater number of high-quality data supported by radiome tric ages to improve the reference curve in both regions. 2019 artículo científico 1405-3322 https://www.redalyc.org/articulo.oa?id=94362592017 https://www.redalyc.org/journal/943/94362592017/ https://www.redalyc.org/journal/943/94362592017/html/ https://www.redalyc.org/journal/943/94362592017/94362592017.epub https://www.redalyc.org/journal/943/94362592017/movil 10.18268/BSGM2019v71n2a16 en http://www.redalyc.org/revista.oa?id=943 Boletín de la Sociedad Geológica Mexicana application/pdf Sociedad Geológica Mexicana, A.C. Boletín de la Sociedad Geológica Mexicana (México) Num.2 Vol.71 |
| title | An updated catalog of pre-hispanic archaeomagnetic data for north and central Mesoamerica: Implications for the regional paleosecular variation reference curve |
| topic | Ciencias de la Tierra central Mexico geomagnetic field Archaeomagnetic dating paleosecular variation |
| url | https://www.redalyc.org/articulo.oa?id=94362592017 https://www.redalyc.org/journal/943/94362592017/ https://www.redalyc.org/journal/943/94362592017/html/ https://www.redalyc.org/journal/943/94362592017/94362592017.epub https://www.redalyc.org/journal/943/94362592017/movil |