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Ølve- Mining
All in all there are ten known copper mines and two iron mines on the Ølve peninsula. Geologically, the nine mines on Varaldsøy Island also should be figured in. The industry began at Lilledal in 1642 wth the mining of iron ore. From Jernsmauget by Dyråsen, the iron ore was sent to the iron works in eastern Norway.
Litlandsvatnet
Large quantities of nickel ore have been mined from Litlandsvatnet, between Lonevågen and Hosanger. The discovery was made in 1875. During the period of operation from 1882 to 1945, 4170 tonnes of pure nickel were extracted from 462 000 tonnes of ore, a large production by Norwegian standards.
Lykling- gold
During the summer of 1979 a rock was found at Lykling in Bømlo that contained 450 grams of gold, and at the end of the 1980s a great many gold samples were laid out for sale. In the old mining area there are still gold miners hunting for the precious metal. But, the big adventure stories are a thing of the past.
Dalskarvatnet–Dyvikvågen
Many of the fossils one finds on Stord are related to fossils of the same age found in North America. Scientists thinks this indicates that the bedrock on Stord was much nearer to America at that time than today.
Ulven
In the region of Ulven phyllite occurs with Hordaland's youngest fossils, and a beautiful quartz conglomerate. The phyllite and conglomerate got squeezed into the bottom of an ancient oceanic crust, made of gabbro and greenstone, in the heart of the Caledonide mountain chain.