How was shetland formed?

Shetland was formed through geological processes over millions of years, primarily as a result of tectonic activity. The islands are composed mainly of ancient metamorphic rocks, shaped by volcanic activity and glacial erosion during the last Ice Age. As the glaciers retreated, they carved the landscape, creating the rugged terrain and deep fjords characteristic of Shetland today. The islands are also influenced by their location at the meeting point of the Atlantic Ocean and the North Sea, which has shaped their climate and ecology.