Geologic Controls on Hypogene Mineralization at the Zaldívar Porphyry Copper-Gold-Molybdenum Deposit, Escondida District, Northern Chile

2018 ◽  
Author(s):  
José Perelló ◽  
Aquiles González ◽  
Cristian Monroy
Keyword(s):  
Porphyry Copper ◽  
Northern Chile ◽  
Molybdenum Deposit ◽  
Copper Gold ◽  
Geologic Controls

Porphyry Copper Discovery Beneath the Valeriano Lithocap, Chile

SEG Discovery ◽  
2016 ◽  
pp. 1-20
Author(s):  
Richard H. Sillitoe ◽  
Claudio Burgoa ◽  
David R. Hopper
Keyword(s):  
Gold Mineralization ◽  
Porphyry Copper ◽  
Northern Chile ◽  
Porphyry Copper Deposits ◽  
Copper Deposits ◽  
Alteration Zones ◽  
Copper Gold ◽  
Drill Holes

ABSTRACT Exploration for porphyry copper deposits beneath barren or poorly mineralized, advanced argillic lithocaps is becoming common­place; however, there have been few discoveries except in cases where the copper ± gold ± molybdenum mineralization has been partly exposed, typically as a result of partial lithocap erosion. At Valeriano, in the high Andes of northern Chile, completely concealed Miocene porphyry copper-gold mineralization was recently discovered beneath a lithocap. Here, the results of the staged drilling program that led to the discovery are summarized, with emphasis on the key geologic, alteration, and mineralization features that provided guidance. The final deep drill holes of the 16-hole program cut well-defined advanced argillic and sericitic alteration zones before entering chalcopyrite ± bornite–bearing, potassic-altered porphyry, with grades of 0.7 to 1.2% Cu equiv, at depths of ~1,000 to >1,800 m.

Geometallurgy of the Pebble Porphyry Copper-Gold-Molybdenum Deposit, Alaska: Implications for Gold Distribution and Paragenesis

2013 ◽  
Vol 108 (3) ◽  
pp. 463-482 ◽  
Author(s):  
M. J. Gregory ◽  
J. R. Lang ◽  
S. Gilbert ◽  
K. O. Hoal
Keyword(s):  
Porphyry Copper ◽  
Molybdenum Deposit ◽  
Copper Gold

Geology and Magmatic-Hydrothermal Evolution of the Giant Pebble Porphyry Copper-Gold-Molybdenum Deposit, Southwest Alaska

2013 ◽  
Vol 108 (3) ◽  
pp. 437-462 ◽  
Author(s):  
J. R. Lang ◽  
M. J. Gregory ◽  
C. M. Rebagliati ◽  
J. G. Payne ◽  
J. L. Oliver ◽  
...  
Keyword(s):  
Porphyry Copper ◽  
Molybdenum Deposit ◽  
Copper Gold
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