In those rocks where a pathway from a source rock to the host rock occurs and on the way trapping physical-chemical conditions become more and more favorable in space and time for the elements in question .
This is the simplest way of ore accumulation.
It is temperature, pressure, Eh and pH changes that count.
You can use this construct for each and every commodity.
HGD
Iron ore forms under specific geological and environmental conditions:
• Banded Iron Formations (BIFs): Developed in ancient, low-oxygen oceans where dissolved iron precipitated as oxides with rising oxygen levels.
• Magmatic Deposits: Form from iron-rich magmas in large mafic intrusions, where magnetite crystallizes during cooling.
• Skarn Deposits: Occur at contacts between intrusions and carbonate rocks, where hot, iron-rich fluids replace the host rock.
• Lateritic Deposits: Found in tropical regions with hot, humid, and stable climates, where intense weathering concentrates iron in soils.
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