What formation are created when lava cools and hardens?

Answer 1

When lava cools and hardens, it can form various geological structures, primarily basalt formations, such as columns and flows. Basalt columns, often seen in places like the Giant's Causeway, are created when lava cools and contracts, leading to the formation of hexagonal shapes. Other formations include lava plateaus and pillow lava, which occur underwater. These structures are key features in volcanic landscapes and provide insights into the cooling process of molten rock.