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Mineralization

A

Anonymous

Guest
I've read and seen in road cuttings that the highest level of mineralization occurs on the surface. In Australia in the areas I visit some of the redest soil seems to be on the surface. Is the iron in the soil lighter and gets left on the surface or are there other factors involved.
Thanks Bill
 
G'day Bill,
There is an interesting artical available (see link below) about mineralization that you might find of interest.
What I have found particularly interesting about this subjet is the extreme difference in mineralization between Australia and New Zealand. These two countries are not very far apart in distance yet differ significantly in the mineralization of the soils. The difference between the two countries seems to be able to be explained by their geological age. New Zealand being a 'young' country, and Australia being an 'old' country that has been subject to erosion over millions of years.
Regards,
Rob(RKC)
 
I think it is a matter of oxidation. Iron oxides can have a great variety of colors depending on the amount of o2.
 
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