The Caledonian movement was an orogeny that occurred in the early Palaeozoic in Europe. In China, the tectonic movement during this period is called the Caledonian cycle, and it is the main event occurred between the Silurian and Devonian Periods. It is represented by the Guangxi movement and the Qilian movement, which occurred 410 million years ago. The ages of the upper and lower layers are different, and they are separated by angular unconformities. However, they did not form in a single event. The orogenic belt of the Qilian Mountains in China formed during the Caledonian movement.