Haselgebirge

File:Haselgebirge.png salt mines]]

Haselgebirge is an evaporite sedimentary rock type composed of 10-70wt% halite, with clasts of anhydrite, mudrock, and polyhalite in a halite matrix. Bodies of pure rocksalt within the haselgebirge display red to dark color bands of foliation. Tectonic deformation occurred between the Late Jurassic to the Neogene, resulting in a two-component tectonite, haselgebirge and kerngebirge (more than 70wt% halite). Within the fault zones the haselgebirge forms protocataclasites, while the kerngebirge, and pure rock salt, form mylonites and ultramylonites. The Haselgebirge Formation is mined in Altaussee, Berchtesgarden, and Dürrnberg. {{cite web |last1=Leitner |first1=Christoph |last2=Neubauer |first2=Franz |last3=Urai |first3=Janos |last4=Schoenherr |first4=Johannes |title=Structure and evolution of a rocksalt-mudrock-tectonite: The haselgebirge in the Northern Calcareous Alps |url=https://www.sciencedirect.com/science/article/pii/S0191814111000423 |website=ScienceDirect |publisher=Elsevier |access-date=5 February 2024 |date=2011}}