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The North Volcanic Zone of Iceland

Steingrimur Thorbjarnarson

The North Volcanic Zone is differs from the WVZ and EVZ in the south. It is aligned directly NS as a whole, but individual volcanic systems point slightly to the NE. Comparing the grid to the map of National Land Survey of Iceland gives this picture:

Drift - North Volcanic Zone

The vectors of tectonic drift as mesures for ISNET 2004 are divided around the NS-oriented NVZ. By marking the main polygons of the zone red, the main volcanic areas are seen to be found within them, thereby functioning to meet the tectonic drift as these polygons break up, making space for more magma input from below.

The directional effect on tectonics resulting from diverging to the east and west on the polygons is thereby quite obvious.

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Published by Steingrimur Thorbjarnarson

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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