Products
Alta
Rock type: Quartzite slate.
Age: Late Pre-Cambrian (approx. 800 million years).
Alta Slate represents what was originally a homogenous sandstone formation, which was deformed through horizontal movement in the earth’s crust during the formation of mountains in the Caledonian period and metamorphosed into slate.
Offerdal
Rock type: Feldspar metasandstone.
Age: Silurian-Devonian (approx. 650 million years).
The depositing of sediments formed the Offerdal highland region during a period of continental settling. During the formation of the Caledonian mountain range the sediment was moved, deformed and metamorphosed into the Offerdal region as you see it today.
Oppdal
Rock type: Quartzite slate.
Age: Late Pre-Cambrian (approx. 750 million years).
Oppdal slate represents what was originally a homogenous sandstone formation, which was deformed through horizontal movement in the earth’s crust during the formation of mountains in the Caledonian period and metamorphosed into slate.
Otta
Rock type: Phyllite slate.
Age: Ordovician (approx. 460 million years).
Otta slate represents what was originally a clay/siltstone formation which during the Caledonian period was deformed and metamorphosed with the foundation of regular cleavage strata.