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Berggrunnsgeologi |
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3 Rapids and view upvalley (240 m.a.s.l.) |
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The Steindalselva forms rapids at places where it crosses bouldery moraine. These picturesque rapids occur just above the threshold, where the valley opens out to give a view of the Lyngen Alps. Notice how the mountains in the background are much higher than the more rounded hills in the foreground. The difference is due to different bedrock. The Lyngen Alps are made up of hard gabbro, whereas the adjacent lower hills are made of softer schist. |