Isotopic, chemical and dissolved gas constraints on spring water from Popocatepetl volcano (Mexico): Evidence of gas-water interaction between magmatic component and shallow fluids
Por:
Inguaggiato S., Martin-Del Pozzo A.L., Aguayo A., Capasso G., Favara R.
Publicada:
1 ene 2005
Resumen:
Geochemical research was carried out on cold and hot springs at Popocatepetl (Popo) volcano (Mexico) in 1999 to identify a possible relationship with magmatic activity. The chemical and isotopic composition of the fluids is compatible with strong gas-water interaction between deep and shallow fluids. In fact, the isotopic composition of He and dissolved carbon species is consistent with a magmatic origin. The presence of a geothermal system having a temperature of 80-100° C was estimated on the basis of liquid geothermometers. A large amount of dissolved CO2 in the springs was also detected and associated with high CO2 degassing. © 2004 Elsevier B.V. All rights reserved.
Filiaciones:
Ist. Naz. Geofis./Vulcanol. Sezione, Via Ugo La Malfa 153, Palermo 90146, Italy
Instituto de Geofisica UNAM, México, DF 04510, Mexico
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