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![Geologists from all over the world come to study the veined bedrock (the dark stripe in the picture) at Spildepollen.](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/sund_9.jpg?itok=Guc62QqZ)
Spildepollen
The oceanic crust of the North Sea was subjected to a lot of stretching both in Permian and Triassic times, and later in the Jurassic. This stretching resulted in the North Sea collapsing in and also to large faults forming west of Hordaland and on the mainland. Austefjorden in Sund follows one of these faults.
![Manger](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/radoy_25.jpg?itok=2_lft7Ih)
Manger
Mangerite is a rock type that was first made famous in a treatise by the Bergen geologist Carl Fredrik Kolderup in 1903. The rock type got its name from the place where it was found, and has made the Mangerud name well known around the world, at least among geologists.