The Laas Nappe exposes a series of often subvertically northward inclined garnet and staurolite bearing paragneisses, marbles and amphibolites metamorphosed under amphibolite-facies conditions during the Variscan orogeny. Cretaceous metamorphic overprint varies from greenschist facies in the west to lower amphibolite facies in the east. This nappe occupies a much-debated and still unclear position in the Upper Austroalpine nappe pile.

Oberostalpine Karbonat-reiche Metasedimente.