What causes the white halos with black centers known as leopard spots on the Cheyava Falls rock?
Answer
Chemical reactions involving iron and sulfur
On the surface of the rock, the leopard spots, which feature white halos with black centers, are frequently created by chemical reactions involving iron and sulfur. These processes often serve as energy sources for specific types of microbes on Earth, making the spots a key point of interest for researchers looking for signs of life.

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