Anyone looking in on the geoscientific laboratory of GRS last week was able to witness a rather unusual scene. Instead of the familiar GRS staff, there were schoolgirls and schoolboys carrying out experiments. They all took part in this year's Future Day, exploring for one day the world of work of scientists and technicians at GRS.

Where nowadays salt deposits are located in the subsurface of Northern and Central Germany, there was the Zechstein Sea more than 250 million years ago. Evaporation processes led to the formation of huge salt sediments that were covered by other sediments with higher rock density (e. g. sand, clay) in the course of the Earth’s history. Differences in density and the great thicknesses resulted in folding and the formation of salt domes over millions of years in Northern Germany.