I believe the green color on Earth was the oxidation of Iron elements in the water. This occurred as oxygen levels increased in response to photogenic process.
I am way over my head here. Is this correct? If so then what is the acidic connection?
Vincent
]]>In the Noachian period, the water was alkaline, like early Earth. Lots of clay was deposited.
But in the Hesperian period, the water was acid. Then the ocean was a wonderful turquoise ...
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