Vacation project:⚒️
Sandbox for teaching Structural Geology next semester. Home-built with the help of João Caçador (brother) and his laser cutter machine. Folds, thrusts and backthrusts, check! #sandbox #geology #structuralgeology #geologiaUFG pic.twitter.com/kcodrb801F

— Prof. Marco Martins-Ferreira (@GeologyMarco) February 26, 2020