Giant’s kettles are formed when rocks swirl in currents under a glacier against a bedrock surface. Over time, this erodes the surface and carves a hole in the rock, ultimately forming the deep cavities known as giant’s kettles. This is what happened in Sweden and northern Europe during the last ice age that ended about 10,000 B.C. The massive ice that once covered Sweden and the rest of Scandinavia (three to four kilometers thick) has affected the geology of the region. The Norwegian fjords, tectonic uplift, and giant’s kettles still…
