Vol. 50 (2022), pp. 37–43 • 782 KB
Dataciones magnéticas de erupciones volcánicas: estudio de la toba Xalnene y el volcán Toluquilla en el centro de México

Jaime Urrutia-Fucugauchi,1,2 Avto Goguitchaichvili,3,4 Ligia Pérez-Cruz,1,2
Marysol Valdez-Hernández 1,2

1 Laboratorio de Paleoceanografía y Paleoambientes, Instituto de Geofísica, Universidad Nacional Autónoma de México, México; 2 Instituto de Investigación Científica y Estudios Avanzados Chicxulub, Parque Científico y Tecnológico de Yucatán, Sierra Papacal, Mérida, Yucatán, México; 3 Servicio Arqueomagnético Nacional, Instituto de Geofísica, Universidad Nacional Autónoma de México, Morelia, Michoacán, México; 4 Sabbatical at Geophysics, Department of Physics, University of Alberta, Canada (

Arqueol. Iberoam.

Dating volcanic eruptions, a central aspect of stratigraphic and geochronological studies, increasingly requires multiple techniques. Archaeomagnetic and paleomagnetic studies provide high resolution records, when referred to paleosecular variation and magnetic polarity time scales. Here, we review the use of archaeomagnetic and magnetic anomaly studies in dating a volcanic eruption. A case study in the Valsequillo Basin, in central Mexico, permits evaluation of different approaches. The paleomagnetic data on lavas and pyroclastics provide spot readings, whereas the volcanic conduit system covers a slightly longer temporal scale. The distinct cooling records provide additional constraints on the magnetization records for correlation and dating.

Archaeomagnetism; magnetostratigraphy; dating; volcanic eruptions; magnetic anomalies.

La datación de erupciones volcánicas es un aspecto central de los estudios estratigráficos y geocronológicos que precisa de estrategias multitécnicas. Los datos arqueomagnéticos y paleomagnéticos proporcionan registros de alta resolución que requieren referirse a las curvas de referencia de paleovariación paleosecular y escala de polaridad magnética. Aquí revisamos el uso de análisis arqueomagnéticos y anomalías magnéticas en la fechación de erupciones volcánicas. Las secuencias volcano-sedimentarias de la cuenca de Valsequillo, en el centro de México, permiten evaluar los métodos y enfoques. Los datos paleomagnéticos en lavas y piroclásticos proporcionan registros puntuales, mientras que los modelados de anomalías magnéticas del sistema de conductos volcánicos cubren un rango temporal de mayor duración. La correlación de los distintos registros de enfriamiento provee elementos adicionales en la interpretación de los registros de magnetización y en las correlaciones y datación.

Palabras clave
Arqueomagnetismo; magnetoestratigrafía; datación; erupciones volcánicas; anomalías magnéticas.

Cite as
Urrutia-Fucugauchi, J.; A. Goguitchaichvili; L. Pérez-Cruz; M. Valdez-Hernández. 2022.
Magnetic Dating of Volcanic Eruptions: Case Study of Xalnene Tuff and Toluquilla Volcano in Central Mexico. Arqueología Iberoamericana 50: 37-43.

Other Persistent Identifiers

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Received: July 18, 2022. Accepted: August 18, 2022. Published: August 31, 2022.

The studies are the product of collaboration with several colleagues. We gratefully acknowledge Eloísa Téllez, Alfonso Trigo, Rafael Venegas and the Valsequillo team for their contributions and useful discussions. AG thanks partial support from CONACYT 252149 and UNAM-PAPIIT IN101920 grants. He also acknowledges the UNAM-DGAPA for the sabbatical scholarship at the University of Alberta, Canada.


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