Comparing Tectonics of Iceland and Norway 30° Apart

Comparing Iceland and Norway at the same latitudes 30° apart should lead to some analogy due to the same pattern of convection rolls. Here is an example.

East and North Volcanic Zones of Iceland
Map of Norway with markings 30° east of the East and North Volcanic Zones of Iceland

The similarity is quite striking. A NS-structure is found accurately 30° east of the North Volcanic Zone of Iceland, which is aligned exactly NS. The bending structure connecting with the NE-SW oriented East Volcanic Zone of Iceland is found exactly at the same latitude in Norway. In addition, the points 30° apart, of Hekla in Iceland and in the Trondheim area in Norway, are aligned exactly in the same way.

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