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Lithocap Structure-controlled feeder zone Lithology-controlled ...

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Decrease:<br />

Alunite Pb, Ag/Au<br />

Whole-rock (alunite-bearing only): Pb, Ag, Ag/Au, Hg<br />

Lepanto<br />

FSE porphyry<br />

Lepanto<br />

Victoria veins<br />

500 m<br />

FSE<br />

Surface projections of<br />

Victoria-Teresa IS vein &<br />

Lepanto HS enargite, over<br />

Far Southeast porphyry<br />

Alunite<br />

1.40-1.45 Ma<br />

Enargite-Au<br />

IS Au-Ag veins<br />

Teresa<br />

veins<br />

Bt 2.2-1.8 Ma<br />

Porphyry Cu<br />

Hydro Biot<br />

1.40-1.45 Ma<br />

Illite ~1.35 Ma<br />

X Horn<br />

1.45 Ma<br />

X Biot<br />

1.18 Ma<br />

X Illite<br />

1.4-1.15 Ma<br />

Hedenquist et al., 2001

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