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An example of oxidation of iron in rocks can be seen in the Hawaiian island of Kauai. This island is 5 million years old and is heavily eroded. The dark black
by pfdietz 2y ago
An example of oxidation of iron in rocks can be seen in the Hawaiian island of Kauai. This island is 5 million years old and is heavily eroded. The dark black volcanic rocks typical of the younger islands have turned bright red, for example in Waimea Canyon State Park.
https://en.wikipedia.org/wiki/Waimea_Canyon_State_Park https://en.wikipedia.org/wiki/Waimea_Canyon_State_Park