The volcano Eyjafjallajökull became famous in 2010 when it erupted and airports all over Europe were closed. It is located at the western end of the mountain range of Eyjafjöll, and when revealing the mystery where volcanoes are located, the reason for the location of Seljalandsfoss becomes understandable. An EW-axis is found through Eyjafjallajökull, and the caldera of Katla as well.
Seljalandsfoss
The black line found on this map shows how the axis is formed from one corner of the relevant polygon to the other. Seljalandsfoss represents the end of the explicit part of fissure swarm of Eyjafjallajökull.
I am a geologist, graduated from the University of Iceland, and taught geology for a few years. I have gained some knowledge about Earth's inner structure, so I provide this website as my contribution to answer one of the greatest questions remaining within the realm of geoscience. Experiments show that the mantle should form convection rolls when close to the melting point. I took this literally, and calculated the dimensions and shape of these mantle convection rolls. Then I compare that model with the surface. This makes it possible to provide many interesting examples about geology found on my blog.
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