There is one famous waterfall still not mentioned here. It forms a semi-circle, but the sections have certain alignments. This is the main one:
Looking from above with the help of Google map, the alignment can compared with calculated direction of convection rolls underneath:
The river Skjálfandafljót makes a turn before it reaches the fault responsible for the waterfall. The alignment is the opposite of Dettifoss (but the same deviation from north), and the same as for Selfoss in Jökulsá á Fjöllum.
Again, a composition of differently oriented faults combine at the site of the waterfall.
Faxi
Dynjandi
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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