G41A-1021
Ceboruco Volcano Gravimetric Analysis, Mexico
Thursday, 17 December 2015
Poster Hall (Moscone South)
Jhonattan Fernandez Cordoba1, Juan-Manuel Espindola2, Quiriat Jearim Gutierrez3, Alejandro Garcia Serrano2, Araceli Zamora-Camacho4, Juan Ignacio Pinzon3 and Francisco J Nuñez-Cornu3, (1)SisVOc, Puerto Vallarta, Mexico, (2)Universidad Nacional Autonoma de Mexico, Mexico City, Mexico, (3)University of Guadalajara, Puerto Vallarta, Mexico, (4)Instituto de Geofisica, Federal Districto Of, Mexico
Abstract:
The Ceboruco is a late Quaternary dacitic-andesitic stratovolcano, is located in the Tepic-Zacoalco graben in the western part of the Trans-Mexican Volcanic Belt (TMVB) near to Ahuacatlan and Jala towns in Mexico. There have been at least eight eruptions from this volcano in the last thousand years, and for this reason Ceboruco must be considered an active volcano whit the possibility of erupting again in the future. This work aims to contribute with a regional density contrasts model from gravity measurements of volcano area. 163 observations were measured every 500 meters with a Scintrex CG-5 gravimeter. We corrected data were measured in the area to filter information dependent of external gravitational fields or outside to object of study. Post-filtering of data, we obtained gravity anomalies distribution and with other supporting data (aeromagnetic and geological data) we made 8 profiles around Ceboruco to build an approximate model of density changes in the lithological units under the volcano.
