Buntsandstein

In the late Permian this region had an arid climate and it was covered by inland seas which deposited the Zechstein evaporites.

At the end of the Permian a connection with the Paleo-Tethys Ocean to the south was formed in present-day southeast Poland, causing sea water to flow in periodically.

Deposition took place in an arid, continental environment (playa facies), so that there was little chemical weathering.

[6] In German lithostratigraphy, it is seen as a group, in the Netherlands and North Sea the name has no official status (though that does not keep geologists from using it).

In the official Dutch lithostratigraphy, the Buntsandstein is divided into the Lower and Upper Germanic Trias Groups.