| Title | Resistivity Survey in Alid Geothermal Area, Eritrea |
|---|---|
| Authors | Andemariam Teklesenbet, Hjálmar Eysteinsson, Guðni Karl Rosenkjær, Ragna Karlsdóttir |
| Year | 2010 |
| Conference | World Geothermal Congress |
| Keywords | Eritrea, Mt. Alid, resistivity survey, geothermal, reservoir, fault, upflow zone, magnetotellurics |
| Abstract | A deep sounding geophysical survey of the Mt. Alid geothermal area in Eritrea was performed in late 2008. The aim of the survey was to delineate if possible the geothermal reservoir by the use of TEM and MT soundings. The original plan was to cover the area of Mt. Alid and its nearest vicinity. Within given timeframe the area to the west and southwest of the mountain was covered as well as the top of Mt. Alid. The resistivity survey only reveals a part of the geothermal reservoir, due to lack of soundings. A SW-NE lineament is detected at a depth interval 500 meters to 2 km, interpreted as a transform fault intersecting the geothermal reservoir and most likely controls the main up flow into the reservoir. At the surface at the southwest flanks of Mt. Alid, an area with exceptional vegetation in comparison to the barren dry volcanic landscape around indicates moisture and water in the ground that could be explained by steam up flow from the geothermal reservoir. |