U-Pb zircon age of 469 +- 5 Ma for a metatonalite from the Kjosen Unit of the Lyngen Magmatic Complex, northern Norway
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Two fractions of zircon from a tectonised tonalite from within metagabbro of the Kjosen Unit of the Lyngen Magmatic Complex give a concordant U-Pb age of 469 +- 5 Ma. This is interpreted as a minimum age for the Kjosen Unit. This Late Arenig- Llanvirn age is similar to that found in the last stages of magmatic development of the Karmøy Ophiolite Complex of Southwest Norway.