Please use this identifier to cite or link to this item: http://repositorio.ineel.mx/jspui/handle/123456789/195
Stable isotope composition of hydrothermally altered rocks and hydrothermal minerals at the los azufres geothermal field, Mexico
IGNACIO SALVADOR TORRES ALVARADO
DANIEL PEREZ-ZARATE
PETER BIRKLE
Acceso Abierto
Artículo
Inglés
2011
Th e Los Azufres geothermal fi eld is the second most important geothermal fi eld for electricity production in Mexico, with a total installed capacity of 188 MW. Hydrothermal alteration studies have been an important tool for geothermal exploration and development of the fi eld, but little attention has been given to the geochemical and isotopic characterization of hydrothermal minerals. δ18O, δ2H, and δ13C systematics at Los Azufres geothermal fi eld were investigated using whole rock samples, as well as hydrothermal minerals separates, obtained from diff erent depths in the wells Az-26 and Az-52. Most δ18O values reproduce well the present in-situ fi eld temperatures and isotopic composition of geothermal fl uids or local meteoric water. Temperature seems to be the most important factor controlling the oxygen isotope composition of reservoir rocks. A vertical correlation with decreasing δ18O values and increasing temperature is given for both well profi les.
http://repositorio.ineel.mx/jspui/handle/123456789/195
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