Gardena sandstone

Deposited and hardened …
Heat, water and wind began their work. Over millions of years, large parts of the porphyry mountains were carried away. Torrential streams and rivers transported the fine sand to coastal areas and deposited layer upon layer. Finally, consolidated by chalky and siliceous materials, and under the enormous pressure of the chalk layers above it, a new rock was created – sandstone. The strata are of different colours because they contained different dissolved minerals. Traces of animals and the remains of plants were embedded in the sand or mud and preserved. They provide insight into the history of life on earth. 

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