Sveinborg H. Gunnarsdóttir

Iceland GeoSurvey (ÍSOR) · Department of Geology

We present a detailed seismic imaging of the harnessed Nesjavellir geothermal area, SW-Iceland, which is one of several geothermal fields on the flanks of the Hengill volcano. We map the v P , v S , and v P v S ratio using seismic data recorded in 2016–2020 and compare them with both a resistivity model of the same area and the rock temperature as...

The injection of water dissolved CO2 and H2S into basalts into the Nesjavellir geothermal system (Iceland) is to begin in 2022. This study is a pre-injection investigation assessing the likely response of the fluid-rock system to the gas charged water injection. The target aquifer has a temperature of < 200 °C at the injection well, but the tempera...

The Hellisheiði high temperature geothermal field is located in SW-Iceland, about 30 km east of Reykjavik. It is related to the Hengill volcanic system situated at a tectonic triple junction of the Western Volcanic Zone (WVZ), the Reykjanes Peninsula Ridge (RPR) and the South Iceland Seismic Zone (SISZ). Orkuveita Reykjavikur (OR) started the explo...

The Hengill central volcano is situated in the Western Volcanic Zone in Iceland on a triple junction where two active rift zones meet a seismically active transform zone. The area is a high temperature geothermal field which Reykjavík Energy has been exploring and exploiting. Presently the drilling of well number 55 is taking place in the Hverahlíð...