.On Earth, red rocks– often called “red bedrooms”– usually acquire their colour from oxidized iron (Fe3+), which is the same type of iron that makes our blood stream red, or even the corroded reddish color of steel left behind outdoors. Green spots like those noticed in the Wallace Butte abrasion prevail in old “reddish bedrooms” on Earth and develop when liquefied water percolates via the sediment before it hardens to rock, starting a chemical reaction that changes oxidized iron to its minimized (Fe2+) form, leading to a green hue. On Earth, microorganisms are actually often involved in this iron decrease reaction.
However, eco-friendly locations can easily additionally result from decaying organic matter that generates local lessening health conditions. Interactions in between sulfur and iron can likewise generate iron-reducing health conditions without the involvement of microbial life.