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Tectonics of the Oppdal area, central Norway

1980; Taylor & Francis; Volume: 102; Issue: 4 Linguagem: Inglês

10.1080/11035898009454505

0016-786X

Allan Krill,

Geological Modeling and Analysis

Abstract In the Oppdal area, a sequence of Caledonian thrust nappes was metamorphosed, recumbently folded, and refolded during the Caledonian orogeny. The well known Oppdal augen gneisses are Proterozoic rocks belonging to a single nappe unit in the tectonostratigraphy. Another distinctive nappe unit was formed from feldspathic sandstone, intruded in late Proterozoic time by pre-tectonic dolerite dikes. Despite the new thrust interpretations, the early concept of ductile infrastructurel deformation below a more rigid superstructure may still be accurate here in one of Wegmann's type localities of the Stockwerk tectonic model.