Division between convection rolls from Iceland to Greenland can be compared with the map below.Please compare this with the main line from Iceland to Greenland of the Convection Rolls Model.
In the mantle there is a layer that explains the heat anomaly found under the glacier of Greenland. It has been calculated and is shown here above.
The lines are obviously approximately the same. Usually geologists regard Vatnajökull as the site of hot spot, so therefore someone has drawn the line over Iceland a little bit eastwards of the calculated division line between convection rolls.
The National Geodetic Network of Iceland (ISNET) was measured for the third time in 2016. It shows how Iceland really drifts towards NW and NE.
Horizontal movement of Iceland between 1993 and 2016
To introduce this is quite important, as understanding tectonic drift is important to understand geology in general. The result is very clear and I recommend people to read the report carefully. Still, very few geologists seem to realize the new results, found after GPS measurements were used to find this out. Most geologists still think that the drift vectors are mainly to the east and west.
This report is written both in Icelandic and English.
Tectonic drift compared with convecction rolls
It is obvious that some kind of harmony is found between the rolls and vectors. When outside the rift zones, the match as close as it can get.
What is really noticeable, is the fact that the vectors of the eastern part have exactly the same deviation from nort as the vectors of the western part of Iceland. This mathematical mirroring around a NS-axis is fundamental, and is in harmony with the model of the convection currents of the mantle.
There are a few hotsprings in Iceland named Geysir. One is world famous and its name became used in general for spouting hot springs. The hot spring area of Geysir in Haukadalur of SW Iceland shows resemblance of Geysir at Hveravellir in the NE.
Here is a picture of the hot spring Strokkur in the area of Haukadalur.
Strokkur in Iceland
Both Geysers are located close to the main division line of lower mantle.
The two Geysir areas
The geothermal areas are known to have a distribution from SW to NE. The mantle division lines pattern is not known to almost everyone, so therefore this symmetry compared to the convectin rolls is shown here.
With 180 liters per second of boiling hot water, the world’s most powerful hot spring, Deildartunguhver, does stick out in the West of Iceland.
Deildartunguhver
The water is utilized for a spa called Krauma. As for other spa sites in Iceland, the location is easy to explain according to the forces underneath creating them.
The position of Deildartunguhver hot wpring and Krauma spa
Magic Magma 