After several lectures on the subsurface #geology of the Netherlands (including offshore), a geo-contest for the students. Nine cores, nine possible stratigraphic units. Task: match both... #northseacores #vrije #universiteit #aardwetenschappen

Showing students the only real data from the North Sea subsurface. Always nice to see how paleogeography builds on these scarce 'outcrops' #northseacores #geology