2. Danxia Mountain is a place named after Danxia Landform in the world. It consists of more than 680 pieces of red gravel rocks, with a flat top, a steep main body and a flat bottom. It is "as bright as a flower and as bright as a cloud", featuring Chibi in Chibi. According to the research of geologists, more than 1200 Danxia landforms have been discovered in the world. These landforms are the most typical, complete in types and rich in forms.
From 365.438+0.4 billion years ago to 70 million years ago, Danxia Mountain was a large inland basin. Affected by Himalayan orogeny, the surrounding mountains are strongly uplifted, and a large amount of debris is deposited in the basin, forming a huge red stratum; After 70 million years ago, the crust rose and gradually eroded. Since 6 million years ago, the basin has risen intermittently for many times, with an average increase of about 1 meter every 1 ten thousand years. At the same time, the red bed of Danxia has been cut into red mountains, which is the Danxia Mountain Scenic Area.