In this representation, the rocks are subdivided in seven groups according their origin (genesis):

Quaternary loose rocks
Normally consolidated sediments from rivers and glaciers which principally date from the most recent periods of the Earth's history.

Clastic sediments
Rocks whose components result from the mechanical fragmentation of older rock units through the action of wind, water and temperature variations (erosion).

Biogenic sediments and evaporites
Products of biological or chemical deposits. Biogenic sediments are principally composed of shells and bits of skeletons from animals or plants. They mostly form in marine environments (seas, oceans).

Evaporites are chemical sediments which are formed from the precipitation of material during the evaporation of sea water. The most notable evaporites are salt and gypsum.

Biogenic und clastic sediments
Mixed series

Magmatic rocks – plutonite
Crystalline rocks which are formed by the solidification of magma in the Earth's crust (deep rocks).

Magmatic rocks – volcanites
Crystalline rocks which are formed by the solidification of magma on the Earth's surface.

Metamorphic rocks
Crystalline rocks which formed under the influence of pressure or temperature from sedimentary, metamorphic or other metamorphic rocks. In this recrystallisation process the mineralogical composition and original structure adapt to the new pressure and temperature conditions.