The temperature of deposition of sphalerite-bearing ores in the Caledonides of Northern Norway.

The sulphide ores in the Caledonides of northern Norway commonly occur as flat tabular bodies in the allochthonous schists of the eastern or marginal zone (as opposed to the central zone) of the Caledonides. Some are thick and extensive enough to be exploited commercially as in the mines of the Sulitjelma region (e.g. Jakobsbakken). They frequently occur in planes of shear and always seem to be later in age than the regional metamorphism.