The particular Geysir field is situated on the northern edge of the the southern area of lowlands, at an altitude connected with 105-120 m above marine level. Until recently, the location was called Hverasandar. The new springs are located to the eastern side of a little mountain named Laugafell. The geothermal industry in Haukadalur lies around the outskirts of the neovolcanic sector from which it is drifting, and is also therefore gradually becoming a low-temperature field. Magma may have pressured its way out of the neovolcanic zone along one or more fente, forming intrusions. This would describe the sustained geothermal exercise. There is no evidence of recent (holocene) volcanism in this area and the bedrock appears to have been formed subglacially to the end of the glacial period of time.
The geothermal field will be believed to have a total surface of approximately 3 km². Almost all of the springs are aligned alongside a 100 m large strip of land roaming the same direction as the tectonic lines in the area, from to the south to southwest. The deprive is 500 m very long and culminates near just what once was the seat on the lords of Haukadalur. Nowadays we find a church presently there. Here and there, at a considerably reduced distance from the ancient seats than from the hot rises, we find a 20-150 cm thick layer of siliceous sinter, mostly covered by world, or in some cases even out on view as the mound at Hvitamelur. Hvitamelur was once a spouting spring, but it is now totally dry. We can still notice the rims of the ancient container, and the singer safeguards a number of plant fossils. In other words, warm spring water must have included large areas from which the particular geothermal field seems essentially to have moved. The heart with the geothermal area is now a couple of km to the south of the Haukadalur seat, but two tiny springs have been left behind, Marteinslaug and Gufubadshver. As for the middle of the field, the northernmost springs, such as Geysir alone, are believed to be the oldest.
Inside Geysisgil, situated a little for the northwest of hot water geyser iceland, some sort of 20 cm thick level of earth covers an old stratum of siliceous sinter. However , the very same layer associated with earth passes under Geysir’s sinter. This indicates that geothermal activity has subsided as news got around, allowing vegetation to blossom until some event, probably an earthquake, caused a new fracture from which water can emerge again. The heat of water 20 meters down Geysir’s feeder route is about 125 ºC. It offers risen from a depth regarding 1-2 km. Geysir discharges 1 . 5 l/s, whilst the entire area discharges 13 l/s. During the dreaded earthquakes that regularly ripple around southern Iceland, deep cracks inch their way to the country as far as to Haukadalur, yet no known injury to property has as of course been caused this significantly north.