The caldera topography of the plateau
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Coin
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A unique geographical phenomenon usually formed by volcanic activity in plateau regions. Due to the high altitude characteristics of the plateau, it often has more spectacular geomorphological features. The crater is the eruption outlet at the top of the volcanic cone, and its shape is mostly nearly circular, which may be funnel-shaped or flat at the bottom. In the plateau area, the formation of the crater may be accompanied by the eruption of a large amount of volcanic ash and magma, which formed the landform around the crater after cooling. It is not only of geological significance, but also provides a unique environment for the ecosystem. The surrounding soil is often able to support the growth of abundant vegetation due to the fertility of volcanic ash.
