Alt: The perfect Lego set for #sedimentologists

#Sedimentologists aboard! 🚨
Is this a submarine channel or a karstic void filled with sediment?
Limited within the white lines are chalk and marl beds, the surrounding rock is limestone, and above the blue line is calcrete formed long after the underlying units.
#Sedimentology #Karst #GeoTwitter

Another great sunny walk at #Northumberland coast with @speleoseb.bsky.social and #geodog Pebble. A paradise for #dogs and #sedimentologists alike!
☀️🌊🐾🎾⚒️🙂