Fortune Telling Collection - Ziwei fortune-telling - How are the stones in the cave formed?
How are the stones in the cave formed?
The formation of stones in caves is the result of long-term dissolution of groundwater in limestone areas.
According to the genesis, it can be divided into magmatic rocks, sedimentary rocks and metamorphic rocks:
1. Magmatic rocks are rocks formed by the condensation of high-temperature molten magma on the surface or underground, also known as igneous rocks or extrusive rocks;
2. Sedimentary rocks are the products of weathering, biological action and volcanism carried, deposited and consolidated by external forces such as water, air and glaciers under the surface conditions;
3. Metamorphic rocks are rocks formed by metamorphism due to the change of geological environment.
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