http://www.the-jmcc.org/copper-ore/
How come materials like iron ore, and copper, etc. are found in large quantities.?
Right, to be more accurate, miners find large areas that contain nothing but copper, or slate.
How come they are not found with loads of other materials, but with a large amount of the same substance.
It seems strange hat when someone comes upon some iron ore, there would be a huge more amount in the same area.
Did this happen when the earth was formed, and if so, why.
If not, did it happen over time, and why.
If anyone could explain this phenomenon to me, it owuld be greatly apprecitaed.
Thanks, Tom
After the earth's formation, differentiation followed. As usual, heavy elements sink while light things float. This is why same elements or compounds are found together, adding also the fact of bonding, chemical affinity (things we learned in chemistry). But earth is not static, replenishment and exploitation of materials, including the precious ones, happened because of geological processes like volcanism and subduction. These processes make differentiation start again.
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