!!!Flyschzone

Flysch Zone, the geological zone located on the northern edge of the  
Eastern Alps stretching from Vorarlberg to Vienna, mainly made up of 
sandstone (also called the "Sandstone Zone"), in addition to the marl 
and lime marl of the Cretaceous and Late Tertiary periods. In the 
south the flysch zone borders on the  Northern Limestone Alps, which 
were pushed under the flysch zone in the late phase of Alpine mountain 
formation in the Early Tertiary period; the  Molasse Zone, which 
includes the  Alpine Foreland was pushed on top of the flysch zone. 
The rock of the flysch zone appears in places in geological "windows" 
within the Limestone Alps ( Brettlfenster,  Windischgarsten Window) 
and was found in the course of deep drilling under these areas 
(Urmannsau, Berndorf). The Austrian flysch zone forms the northern 
portion of the  Pre-alps and is circa 10-15 kilometres wide. It is at 
its widest in the Vienna Woods (approx. 20 kilometres). The rolling 
hill region with peaks reaching to just over 1,000 m (Pernecker Kogel 
mountain, Upper Austria, alt. 1,080 m; the somewhat smaller 
Hochpyra mountain in the east, alt. 762 m, Schoepfl mountain 890 m) is 
thickly forested and characterised by scattered farms.


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