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Alta wordt gewonnen in de bergen rond de Alta Fjord, langs de Altaelva rivier in Alta Noorwegen, ongeveer 800 km ten noorden van de poolcirkel. Alta wordt ontgonnen over een oppervlakte van ongeveer 100 km². Momenteel wordt de winning van Alta voornamelijk uitgevoerd in de Alta-vallei. Alta is een metamorf, sedimentair gesteente dat vanuit een […]