Investigador

Título y Grado Académico: Geólogo y Magíster en Geofísica, Universidad de Chile. Doctor en Ciencias Naturales, Freie Universität Berlin, Alemania.

Correo electrónico: jaime.araya@uda.cl

Línea de investigación: Geología Estructural y Tectónica; Hidrogeología y Geotermia; Geología Económica.

Áreas de interés: yo utilizo métodos geofísicos electromagnéticos y de potencial para estudiar principalmente: 

• Tectónica y fallas sísmicamente activas (publicaciones n° [4, 5, 6, 9, 10, 11, 14, 16]).
• Sistemas hidrotermales y exploración de recursos minerales y geotermales (publicaciones n° [2, 3, 4, 6, 10, 11]).
• Exploración y manejo de recursos hídricos (publicaciones n° [7, 8, 11, 13]).

Investigación actual:

• Monitoreo y anatomía de la megafalla de subducción en el norte de Chile (https://www.ipoc-network.org/observatory/magnetotellurics/magnetotellurics-at-ipoc/; FONDECYT 11221266, 2022-2025; FONDEQUIP mediano EQM220117, 2023-2026).
• Monitoreo geofísico de los efectos de la sequía en el suelo y vegetación en la zona central de Chile (FONDECYT 1210526, 2021-2025).
• Caracterización de la estructura litosférica para entender los factores que controlan la distribución de magmatismo y recursos geotermales en la región de Aysén (FONDECYT 1201354, 2020-2024).

Publicaciones:

[16] Sanhueza, J., Yáñez, G., Buck, W.R., Sawant, A., Araya Vargas, J., Lloyd, A.J. (2023). Towards linking slab window geodynamics with the geophysical and geochemical signature of the upper mantle. Earth and Planetary Science Letters, 623. https://doi.org/10.1016/j.epsl.2023.118435

[15] Trichandi, R., Bauer, K., Ryberg, T., Wawerzinek, B., Araya Vargas, J., von Blanckenburg, F., Krawczyk, C.M. (2023). Shear-wave velocity imaging of weathered granite in La Campana (Chile) from Bayesian inversion of micro-tremor H/V spectral ratios. Journal of Applied Geophysics, 217, 105191, https://doi.org/10.1016/j.jappgeo.2023.105191

[14] Sanhueza, J., Yáñez, G., Buck, W. R., Araya Vargas, J., & Veloso, E. (2023). Ridge subduction: Unraveling the consequences linked to a slab window development beneath South America at the Chile Triple Junction. Geochemistry, Geophysics, Geosystems, 24, e2023GC010977. https://doi.org/10.1029/2023GC010977

[13] Marti, E., Leray, S., Villela, D., Maringue, J., Yáñez, G., Salazar, E., Poblete, F., Jimenez, J., Reyes, G., Poblete, G., Huamán, Z., Figueroa, R., Araya Vargas, J., Sanhueza, J., Muñoz, M., Charrier, R., & Fernández, G. (2023). Unravelling geological controls on groundwater flow and surface water-groundwater interaction in mountain systems: A multi-disciplinary approach. Journal of Hydrology, 623, 129786. https://doi.org/10.1016/j.jhydrol.2023.129786

[12] Gallegos-Poch, F., Viguier, B., Menanno, G., Mandakovic, V., Yáñez, G., Gutiérrez, S., Lizarde, C., Vargas Araya, J., López-Contreras, C., Mendez-Quiros, P., Maldonado, A., Uribe, M. (2022). Integration of Near-Surface Complementary Geophysical Techniques for the Study of Ancient Archaeological Areas in the Atacama Desert (Pampa Iluga, Northern Chile). Surveys in Geophysics, 44, 495–525. https://doi.org/10.1007/s10712-022-09750-z

[11] Pérez-Estay, N.; Molina-Piernas, E.; Roquer, T.; Aravena, D.; Araya Vargas, J.; Morata, D.; Arancibia, G.; Valdenegro, P.; García, K.; Elizalde, D. (2022). Shallow anatomy of hydrothermal systems controlled by the Liquiñe-Ofqui Fault System and the Andean Transverse Faults: Geophysical imaging of fluid pathways and practical implications for geothermal exploration. Geothermics, 104, 102435. https://doi.org/10.1016/j.geothermics.2022.102435

[10] Araya Vargas, J., Sanhueza, J., & Yáñez, G. (2021). The role of temperature in the along margin distribution of volcanism and seismicity in subduction zones: insights from 3-D thermomechanical modelling of the Central Andean margin. Tectonics, 40(11), e2021TC006879. https://doi.org/10.1029/2021TC006879

[9] Slezak, K., Díaz, D., Araya Vargas, J., Cordell, D., Reyes-Cordova, F., & Segovia, M. J. (2021). Magnetotelluric image of the Chilean subduction zone in the Salar de Atacama region (23°-24° S): Insights into factors controlling the distribution of volcanic arc magmatism. Physics of the Earth and Planetary Interiors, 318, 106765. https://doi.org/10.1016/j.pepi.2021.106765

[8] Valois, R., Araya Vargas, J., MacDonell, S., Guzmán Pinones, C., Fernandoy, F., Yánez Carrizo, G., Cuevas, J.G., Sproles, E.A., & Maldonado, A. (2021). Improving the underground structural characterization and hydrological functioning of an Andean peatland using geoelectrics and water stable isotopes in semi-arid Chile. Environmental Earth Sciences 80(1), 41. https://doi.org/10.1007/s12665-020-09331-6

[7] Araya Vargas, J., Gil, P. M., Meza, F. J., Yáñez, G., Menanno, G., García-Gutiérrez, V., Luque, A. J., Poblete, F., Figueroa, R., Maringue, J., Perez-Estay, N. & Sanhueza, J. (2021). Soil electrical resistivity monitoring as a practical tool for evaluating irrigation systems efficiency at the orchard scale: a case study in a vineyard in Central Chile. Irrigation Science, 39(1), 123-143. https://doi.org/10.1007/s00271-020-00708-w

[6] Pearce, R. K., Sánchez de la Muela, A., Moorkamp, M., Hammond, J. O. S., Mitchell, T.M., Cembrano, J., Araya Vargas, J., Meredith, P. G., Iturrieta, P., Pérez Estay, N., Marshall, N. R., Smith, J., Yáñez, G., Ashley Griffith, W., Marquardt-Román, C., Stanton-Yonge, A., Núñez, R. (2020). Reactivation of fault systems by compartmentalized hydrothermal fluids in the Southern Andes revealed by magnetotelluric and seismic data. Tectonics, 39(12), e2019TC005997. https://doi.org/10.1029/2019TC005997

[5] Yáñez, G., Perez-Estay, N., Araya-Vargas, J., Sanhueza, J., Figueroa, R., Maringue, J. & Rojas, T. (2020). Shallow anatomy of the San Ramón Fault (Chile) constrained by geophysical methods: implications for its role in the Andean deformation. Tectonics, 39(8), e2020TC006294. https://doi.org/10.1029/2020TC006294

[4] Araya Vargas, J., Meqbel, N.M., Ritter, O., Brasse, H., Weckmann, U., Yáñez, G. & Godoy, B. (2019). Fluid Distribution in the Central Andes Subduction Zone imaged with magnetotellurics. Journal of Geophysical Research: Solid Earth, 124 (4), 4017–4034. https://doi.org/10.1029/2018JB016933

[3] Yáñez, G., Ugalde, H. & Araya Vargas, J. (2018). Topographic correction of magnetic data on rugged topography with application to Río Blanco-Los Bronces and El Teniente porphyry copper districts, Southern Andes, Chile. Exploration Geophysics, 49(4), 595-607. https://doi.org/10.1071/EG17016

[2] Aguilef, S., Araya Vargas, J. & Yáñez, G. (2017). Relationship between bulk mineralogy and induced polarisation responses in iron oxide-copper-gold and porphyry copper mineralisation, northern Chile. Exploration Geophysics, 48(4), 353-362. http://dx.doi.org/10.1071/EG15077

[1] Araya Vargas, J. & Ritter, O. (2016). Source effects in mid-latitude geomagnetic transfer functions. Geophysical Journal International, 204 (1), 606-630, Pages 606–630, https://doi.org/10.1093/gji/ggv474