Ba. Sturt et A. Braathen, Deformation and metamorphism of Devonian rocks in the outer Solund area, western Norway: implications for models of Devonian deformation, INT J E SCI, 90(2), 2001, pp. 270-286
Many modern accounts of the Devonian rocks of western Norway, which emphasi
se the extensional processes by which the basins were formed, tend to ignor
e or gloss over the deformation and metamorphism which these rocks have suf
fered during contractional deformation. The present account describes exten
sive ductile folding, penetrative cleavage formation and low-grade regional
metamorphism developed in the Devonian strata of the outer Solund region.
Although the deformation in this area is more intense than in other Devonia
n basins, it belongs to the same movement plan. It will also be shown that
the Devonian rocks of the Scandinavian Caledonides apparently share a commo
n tectonothermal development. This regional contractional event, conceptual
ly, may relate either to a Mid-Late Devonian arc-continent collision, or to
a transpressional strain regime.