The volcanic geological park is 12 kilometers away. There is a scenic spot with a columnar joint. The rocks formed by the volcano are arranged in a hexagonal columnar shape, like a bundle of firewood, lamenting the magic of nature. Is it the energy stick of Optimus Prime that has fallen? [laughter]
The temperature of volcanic magma eruption is 1200 C. When the magma is cooled to 800 - 900 C, the magma crystallizes and forms columnar joints. Because magma contains plagioclase, olivine, amphibole, pyroxene and other minerals of hexagonal column, it forms hexagonal column after cooling, which is called : columnar joint. Here stands a large area of volcanic eruption eruption of magma not exposed to the surface after condensation of the formation of columnar crystals, geologically known as "columnar joints", the local people are vividly called it "Shenzhu".