Title:

Petrologic Evaluation of the Southern Part of Berlin Geothermal Field, El Salvador

Authors:

Elizabeth Torio Henriquez

Key Words:

Stratigraphical changes, petrography, caprock, Berlin geothermal field

Geo Location:

Berlin, El Salvador

Conference:

World Geothermal Congress

Year:

2010

Session:

12. Geology

Language:

English

Paper Number:

1255

File Size:

626KB

View File:

Abstract:

Petrologic data has been used to determine the stratigraphical changes, mineral zoning, thermal history and permeability in Berlin geothermal field.
Petrographic and mineralogical analyses showed that the caprock at wells TR-17 and TR-18 is found at higher elevation (500 masl to sea level), composed of altered fine tuff and ignimbritic deposits, confirming the vertical displacement of the Berlín caldera.
Past and present thermal regimes were identified using microthermometry of fluid inclusions in different crystals. Measurement at depths indicated a temperature reversal of 256 – 258°C in wells TR-17 and TR-18, where temperature of homogenization (Th) obtained a maximum temperature of 346°C.
Geochemical data was plotted in variation diagrams to see the trend of the major oxides and relate to the hydrothermal alteration processes.
This paper will focus on the five production wells (TR-17, TR-17A, TR-17B, TR-18 and TR-18A) at the southern part of the field.


ec2-3-238-95-208.compute-1.amazonaws.com, you have accessed 0 records today.

Press the Back button in your browser, or search again.

Copyright 2010, International Geothermal Association: Readers who download papers from this site should honor the copyright of the original authors and may not copy or distribute the work further without the permission of the original publisher.


Attend the 2020 World Geothermal Congress, Iceland, 2020, click here for details.

Accessed by: ec2-3-238-95-208.compute-1.amazonaws.com (3.238.95.208)
Accessed: Monday 27th of September 2021 12:14:13 AM