Muestra métricas de impacto externas asociadas a la publicación. Para mayor detalle:
Departamento Gestión de Conocimiento, Monitoreo y Prospección
Consultas o comentarios: productividad@anid.cl
Consultas o comentarios: productividad@anid.cl
Evolution of unrest at Laguna del Maule volcanic field (Chile) from InSAR and GPS measurements, 2003 to 2014
| Indexado |
|
||||
| DOI | 10.1002/2015GL064665 | ||||
| Año | 2015 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
The Laguna del Maule (LdM) volcanic field in the southern volcanic zone of the Chilean Andes exhibits a large volume of rhyolitic material erupted during postglacial times (20-2 ka). Since 2007, LdM has experienced an unrest episode characterized by high rates of deformation. Analysis of new GPS and Interferometric Synthetic Aperture Radar (InSAR) data reveals uplift rates greater than 190 mm/yr between January 2013 and November 2014. The geodetic data are modeled as an inflating sill at depth. The results are used to calculate the temporal evolution of the vertical displacement. The best time function for modeling the InSAR data set is a double exponential model with rates increasing from 2007 through 2010 and decreasing slowly since 2010. We hypothesize that magma intruding into an existing silicic magma reservoir is driving the surface deformation. Modeling historical uplift at Yellowstone, Long Valley, and Three Sisters volcanic fields suggests a common temporal evolution of vertical displacement rates.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Le Mevel, Helene | Mujer |
UNIV WISCONSIN - Estados Unidos
University of Wisconsin-Madison - Estados Unidos |
| 2 | Feigl, Kurt L. | Hombre |
UNIV WISCONSIN - Estados Unidos
University of Wisconsin-Madison - Estados Unidos |
| 3 | CORDOVA-VARAS, MARIA LORETO | Mujer |
Servicio Nacional de Geología y Minería - Chile
|
| 4 | DeMets, Charles | Hombre |
UNIV WISCONSIN - Estados Unidos
University of Wisconsin-Madison - Estados Unidos |
| 5 | Lundgren, Paul | Hombre |
CALTECH - Estados Unidos
Jet Propulsion Laboratory - Estados Unidos |
| Agradecimiento |
|---|
| We thank the RAMSAC CORS Network from Instituto Geografico Nacional de Argentina for access to their GPS data, which were used for part of this study. We thank Christophe Vigny and Jaime Campos of the International Associated Laboratory Montessus de Ballore (LIA-MB) for sharing GPS data from station MAUL. We appreciate the logistical assistance generously provided by Carlos Cardona and Fernando Gil at OVDAS, as well as Francisco Delgado, and Tor Stetson-Lee. We are especially grateful to "Don Luis" Torres for his gracious hospitality and nautical expertise. We also thank Nathan Andersen, Brad Singer, Elena Baluyut, Tabrez Ali, and the "LdM team" for helpful discussions. Detailed reviews from Michael Poland, Matthew Pritchard, and Francisco Delgado improved the manuscript. This research was partially supported by grants from NASA (NNX12AO37G), U.S. National Science Foundation (EAR-1411779), as well as support from the Weeks family and the G.P. Woollard fund. We acknowledge SAR data from the following space agencies: ASI (COSMO-Skymed), DLR (TSX), JAXA (ALOS), ESA (ERS and ENVISAT), and NASA (UAVSAR), as well as the coordination by the Supersites Initiative. The Generic Mapping Tool software was used to produce several maps [Wessel and Smith, 1998]. The authors thank Michael Poland, Francisco Delgado, and Matthew Pritchard for their assistance in critically and constructively evaluating this paper. |
