Alvar Braathen, Øystein Nordgulen, Per-Terje Osmundsen, Torgeir B. Andersen, Arne Solli, David Roberts; Devonian, orogen-parallel, opposed extension in the Central Norwegian Caledonides. Geology ; 28 (7): 615–618. doi: https://doi.org/10.1130/0091-7613(2000)28<615:DOOEIT>2.0.CO;2
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Late orogenic, Early to Middle Devonian extension in the Scandinavian Caledonides was unidirectional in western Norway. New data from two detachment zones (Høybakken and Kollstraumen) north of the Møre-Trøndelag Fault Complex show that bidirectional, opposed, orogen-parallel extension dominated in this region. At this time, the fault complex acted as a transfer zone for the Høybakken detachment. Extension and uplift in central Norway triggered significant magmatic activity, in contrast to the lack of granite intrusions during exhumation of western Norway.