ECONOMIC GEOLOGY
and the
Bulletin of the Society of Economic Geologists
Volume 98 December 2003 Number 8


Tectono-Magmatic Precursors for Porphyry Cu-(Mo-Au) Deposit Formation
J. P. Richards    pp. 1515-1533
Abstract

Geology of the Bajo de la Alumbrera Porphyry Copper-Gold Deposit, Argentina
John M. Proffett    pp. 1535-1574
Abstract

Porphyry-Style Alteration and Mineralization of the Middle Eocene to Early Oligocene Andahuaylas-Yauri Belt, Cuzco Region, Peru
José Perello, Victor Carlotto, Alberto Zárate, Pedro Ramos, Héctor Posso, Carlos Neyra, Alberto Caballero, Nicolás Fuster, and Ricardo Muhr     pp. 1575-1605
Abstract

Endeavour Copper-Gold Porphyry Deposits, Northparkes, New South Wales: Intrusive History and Fluid Evolution
Vanessa Lickfold, David R. Cooke, Stuart G. Smith, and Thomas D. Ullrich     pp. 1607-1636
Abstract

The Ridgeway Gold-Copper Deposit: A High-Grade Alkalic Porphyry Deposit in the Lachlan Fold Belt, New South Wales, Australia
Alan J. Wilson, David R. Cooke, and Benjamin L. Harper     pp. 1637-1666
Abstract

The Chloride Source for Atacamite Mineralization at the Radomiro Tomic Phorphyry Copper Deposit, Northern Chile
Terry Arcuri and George Brimhall    pp. 1667-1681
Abstract


Scientific Communications

40Ar-39Ar Ages of Hypogene and Supergene Mineralization in the Cerro Verde-Santa Rosa Porphyry Cu-Mo Cluster, Arequipa, Peru
Chan X. Quang, Alan H. Clark, James K.W. Lee, and Jorge Guillén B.     pp. 1683-1696
Abstract

In-Situ Distribution of Gold in Ores Using High-Resolution X-Ray Computed Tomography
J. Richard Kyle and Richard A. Ketcham    pp. 1697-1701
Abstract


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