Where I went to university the geography faculty were part of the Earth Science department. It formed a really interdisciplinary department, there was work being done, for example, in “health geography” — applying population & ecological studies, community health research, and epidemiology to understand disparities. Urban geography like was mentioned strives to understand of the role of cities in regional, national, and international developments but also how cities operate through governance and administration, the role of philanthropic institutions and NGOs, gentrification etc.
As a geologist I will retort that if Minecraft environments had eroding surfaces like real life does then that bedrock would also be visible at the surface. Outcrops are just areas that are experiencing erosion rates faster than areas that are overlayed with soil. That said, there are a cool Minecraft programs for geological processes that have been shown to be educational.