ECONOMIC GEOLOGY and the Bulletin of the Society of Economic Geologists, 2005, V 100, N 5, August.

A Special Issue Devoted to the Giant,  
Porphyry-Related Mineral Deposits of the 
Andean and PNG-Irian Jaya Fold Belts
Guest Editors:  David R. Cooke, Peter Hollings, and John L. Walshe 

Giant Porphyry Deposits: Characteristics, Distribution, 
and Tectonic Controls
David R. Cooke, Peter Hollings, and John L. Walshe

The Role of Pre-Existing Geological Architecture 
in the Formation of Giant Porphyry-Related 
Cu +/- Au Deposits: Examples from New Guinea and Chile
P. A. Gow and J. L. Walshe 

Fluid Chemistry, Structural Setting, and Emplacement 
History of the Rosario Cu-Mo Porphyry and Cu-Ag-Au Epithermal
Veins, Collahuasi District, Northern Chile
Glenton J. Masterman, David R. Cooke, Ron F. Berry,
 John L. Walshe, Andrew W. Lee, and Alan H. Clark

Bajo de la Alumbrera Copper-Gold Deposit: Stable Isotope
Evidence for a Porphyry-Related Hydrothermal System 
Dominated by Magmatic Aqueous Fluids
Anthony C. Harris, Suzanne D. Golding, and Noel C. White

Regional Geochemistry of Tertiary Igneous Rocks in 
Central Chile: Implications for the Geodynamic 
Environment of Giant Porphyry Copper and 
Epithermal Gold Mineralization
Peter Hollings, David Cooke, and Alan Clark

Magmatic and Hydrothermal Chronology of the 
Giant R?o Blanco Porphyry Copper Deposit, 
Central Chile: Implications of an 
Integrated U-Pb and 40Ar-39Ar Database
Katja Deckart, Alan H. Clark, Celso Aquilar A.,
Ricardo Vargas R., Alfredo Bertens N., 
James K. Mortensen, and Mark Fanning 

Mineralogical and Isotopic Zonation in the 
Sur-Sur Tourmaline Breccia, R?o Blanco-Los 
Bronces Cu-Mo Deposit, Chile: Implications
for Ore Genesis
Peter H. Frikken, David R. Cooke, John L. Walshe,
Doug Archibald, Jorge Skarmeta, Luis Serrano,
and Ricardo Vargas

Magmatic Precursors of Hydrothermal Fluids 
at the Rio Blanco Cu-Mo Deposit, Chile: 
Links to Silicate Magmas and Metal Transport
Paul Davidson, Vadim Kamenetsky, David R. Cooke,
Peter Frikken, Peter Hollings, Chris Ryan,
Esme Van Achterbergh, Terry Mernagh, Jorge Skarmeta, 
Luis Serrano, and Ricardo Vargas

Geology, Mineralization, Alteration, and Structural
Evolution of the El Teniente Porphyry Cu-Mo Deposit
James Cannell, David Cooke, John Walshe, and Holly Stein

Ages of Intrusion, Alteration, and Mineralization
at the Grasberg Cu-Au Deposit, Papua, Indonesia
Peter J. Pollard, Roger G. Taylor, and Lisa Peters 

Genesis of Pyrite-Au-As-Zn-Bi-Te Zones Associated
with Cu-Au Skarns: Evidence from the Big Gossan
and Wanagon Gold Deposits, Ertsberg District, Papua, Indonesia
Kylie Prendergast, Gavin W. Clarke, 
Norman J. Pearson, and Keith Harris