Zoning
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The pattern of
mineral disribution that occurs in Cornwall. The minrization of lodes often
to occurs in a sequence based on the tempreature of formation (and solidifying)
of the the ore. Zoning results in higher temperature ores occuring nearer
the emative centre (granite) and cooler futher away. Zoning can be apparent
vertically or laterially.
Zones
Element |
Typical
Lateral Zone |
Iron |
Distant from Granite |
Lead Zinc
Silver |
Area near to Granite |
Uranium
Cobalt |
Area near to Granite |
Copper |
Granite Border |
Wolfram |
Granite Border |
Tin |
Granite and adjacent to
Granite |
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