Articles | Volume 12, issue 1
Research article
29 Jan 2021
Research article |  | 29 Jan 2021

The Piuquencillo fault system: a long-lived, Andean-transverse fault system and its relationship with magmatic and hydrothermal activity

José Piquer, Orlando Rivera, Gonzalo Yáñez, and Nicolás Oyarzún

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Cited articles

Acocella, V., Gioncada, A., Omarini, R., Riller, U., Mazzuoli, R., and Vezzoli, L.: Tectonomagmatic characteristics of the back-arc portion of the Calama–Olacapato–El Toro Fault Zone, Central Andes, Tectonics, 30, TC3005,, 2011. 
Aguirre, L.: Geología de los Andes de Chile Central, Provincia de Aconcagua, Instituto de Investigaciones Geológicas, Santiago, Chile, 70 pp., 1960 (in Spanish). 
Allmendinger, R. W., Cardozo, N., and Fisher, D. M.: Structural Geology Algorithms: Vectors and Tensors, Cambridge University Press, New York, United States of America, 2012. 
Alvarado, P., Barrientos, S., Sáez, M., Astroza, M., and Beck, S.: Source study and tectonic implications of the historic 1958 Las Melosas crustal earthquake, Chile, compared to earthquake damage, Phys. Earth Planet. In., 175, 26–36, 2009. 
Aron, F., Allmendinger, R. W., Cembrano, J., González, G., and Yáñez, G.: Permanent fore-arc extension and seismic segmentation: Insights from the 2010 Maule earthquake, Chile, J. Geophys. Res.-Sol. Ea., 118, 1–16,, 2013. 
Short summary
A proper recognition of deep, long-lived fault systems is very important for society. They can produce potentially dangerous earthquakes. They can also act as pathways for magmas and hydrothermal fluids, leading to the formation of volcanoes, geothermal systems and mineral deposits. However, the manifestations of these very old faults in the present-day surface can be very subtle. Here, we present a detailed, multi-disciplinary study of a fault system of this type in the Andes of central Chile.