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Self-potential signals caused by eruptions of the galeras volcano – colombia

Greinwald, S. and Ortega, A. and Rugeles, A. and Ips, M., v. Seth (2007) Self-potential signals caused by eruptions of the galeras volcano – colombia. Earth Sciences Research Journal; Vol. 11, núm. 2 (2007); 155-168 Earth Sciences Research Journal; Vol. 11, núm. 2 (2007); 155-168 2339-3459 1794-6190 .

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URL oficial: http://revistas.unal.edu.co/index.php/esrj/article...

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The National Institute of Geology and Mining, INGEOMINAS - Colombia, and the Federal Institute for Geosciences and Natural Resources, BGR - Germany, perform since 1997 as a joint venturemulti-parameter measurements at the Galeras volcano, in the southwest of Colombia. Since the end of 1998 the Multi-parameter Station at Galeras (Estación Multiparámetro del Galeras - EMG) includes the continuous monitoring of electromagnetic variations. The electromagnetic (EM) station is located at the north-eastern foot walls of the central cone inside the caldera.During almost six years of electromagnetic monitoring, the data did not show significant variations of the electromagnetic field, which could be related to the volcanic activity. In July 2004 a new active period of Galeras began with two strong ash emissions. During both emissions strong self potential- (SP) signals were recorded lasting for several hours. The present paper will present the data which could give some indications on the movements of liquids during ash emissions.

Tipo de documento:Artículo - Article
Unidad administrativa:Revistas electrónicas UN > Earth Sciences Research Journal
Código ID:24090
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :27 Junio 2014 15:23
Ultima modificación:31 Enero 2018 21:09
Ultima modificación:31 Enero 2018 21:09
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