What was initially intended as an “advertising measure” to make the Geoverbund better known among students has since developed into a real flagship for the joint geoscientific network of RWTH Aachen University, Bonn University, Cologne University and Forschungszentrum Jülich. There is hardly any other place on Earth where, thanks to the arid climate and the lack of soil coverage, such first class outcrops (this is what the geologist calls places where the rock is visibly exposed) can be observed. Where else can you go for a walk on the so-called “Moho“? A boundary layer that marks the transition from the Earth’s crust to the Earth’s mantle and that usually lies several kilometres deep inside the Earth?

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