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6. Draw a schematic cross section through a shallow intrusive complex to a depth of 5 km
containing a porphyry Cu deposit and associated skarns, mantos, and epithermal Au vein
deposits showing the following features:
the igneous intrusion driving fluid flow
the paths followed by hydrothermal fluids, both orthomagmatic and meteoric
the sources of the fluids involved
the names and locations of the principal alteration zones in and around the deposits
the typical locations of the main ore types formed in each deposit.

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VMS
sea water
Wih Breccia-
[ Au- Ag- Lu-As)
Fepithermal Au / Ag
high sulpure
sulfide veins
alteration.
[ cu - As - Au-Ag ]
+
+
carbonate rock writer
skarn [ Cu - Au ]
Porphyry
The veins marks the...

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