Kamenná slunce
Kamenná slunce ("Stone Sun") is a geological national natural monument in the south of the Central Bohemian Uplands between Hnojnice and Děčany in the Czech Republic . A rock wall made of chalk sediments with structures reminiscent of a sun is under protection . The reserve was established in 1953 on 0.8 hectares.
The suns were probably formed after a major volcanic explosion . Glowing ejected masses then got under the sliding chalk sediments. The surrounding material was heated and baked together. During the cooling process, star-shaped stress cracks developed around smaller bodies that had penetrated the chalk sediments.
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Coordinates: 50 ° 26 ′ 2 " N , 13 ° 53 ′ 9" E