Walter Penck

Walter Penck was a German geologist and geographer known for developing the "craton" concept, which describes stable, ancient cores of continents that have remained largely unchanged for billions of years. He contributed to understanding how Earth's large landmasses evolve over geological time, emphasizing that these stable regions influence the formation of mountain ranges and the Earth's crustal movements. His work helped scientists better understand the long-term stability of continental centers and the processes shaping the Earth's surface.