Early Exploration of San Diego Geothermal Area, Northwest Colombia

2nd International Geothermal Conference, GEOHEAT2018

Claudia Maria, Alfaro-Valero^1 ; Jesus Bernardo, Rueda-Gutiérrez^2

Chemist. Geothermal Research and Exploration Group, Colombian Geological Survey (SGC), Colombia^1

Geologist. Researcher in Cartogr., Lithogeochemistry and Hydrothermal Alteration for Geothermal Explor., Geothermal Research and Exploration Group, Colombian Geological Survey (SGC), Colombia^2

关键词: Basement rocks;    Deep fluids;    Discharge temperature;    Faults , fractures;    Geothermal areas;    Geothermometers;    Magmatic intrusions;    Water types;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/249/1/012011/pdf
DOI  :  10.1088/1755-1315/249/1/012011

来源: IOP

【 摘 要 】

The geothermal area of San Diego, framed by three hot springs sites, is located in the Central Cordillera, to the north of Romeral Volcano, previously considered as the northernmost Colombian Volcano. The hot springs are located in the vicinity of a magmatic intrusion (Puente Linda porphyry) and, two volcanoes located in the area: San Diego maar and El Escondido Volcano, this last identified during the very beginning of the geothermal reconnaissance in 2013. The geology of the area is dominated by outcrops of Cajamarca metamorphic complex, the main basement rock of the Central Cordillera and igneous intrusions. The igneous rocks were characterized by lithogeochemistry and geochronology. The rocks of the most recent age are intrusions of San Diego and El Escondido volcanoes (