U-Pb and Re-Os Geochronologic Evidence for Two Alkalic Porphyry Ore-Forming Events in the Cadia District, New South Wales, Australia
A. J. Wilson, D. R. Cooke, H. J. Stein, C. M. Fanning, J. R. Holliday, and I. J. Tedder    pp. 3-26
Abstract

Clay Mineralogy and Zonation in the Campana Mahuida Porphyry Cu Deposit, Neuquén, Argentina: Implications for Porphyry Cu Exploration
M. Franchini, A. Impiccini, L. Meinert, G. Grathoff, and I. B. A. Schalamuk    pp. 27-54
Abstract

Metalliferous Sediments Associated with Presently Forming Volcanogenic Massive Sulfides: The Susu Knolls Hydrothermal Field, Eastern Manus Basin, Papua New Guinea
E. Hrischeva, S. D. Scott, and R. Weston    pp. 55-73
Abstract

Field Relationships and Geochemical Constraints on the Emplacement of the Jinchuan Intrusion and its Ni-Cu-PGE Sulfide Deposit, Gansu, China
J. Lehmann, N. Arndt, B. Windley, M-F. Zhou, C. Yan Wang, and C. Harris    pp. 75-94
Abstract

Platinum Group Element Geochemistry of Andesite Intrusions of the Kelian Region, East Kalimantan, Indonesia: Implications of Gold Depletion in the Intrusions Associated with the Kelian Gold Deposit
B. T. Setiabudi, I. H. Campbell, C. E. Martin, and C. M. Allen    pp. 95-108
Abstract

The Deposition of Elemental Gold from Gold(I)-Thiosulfate Complexes Mediated by Sulfate-Reducing Bacterial Conditions
M. F. Lengke and G. Southam    pp. 109-126
Abstract


Scientific Communications

The Significance of Clathrates in Fluid Inclusions and the Evidence for Overpressuring in the Broadlands-Ohaaki Geothermal System, New Zealand
S. F. Simmons, M. P. Simpson, and T. J. Reynolds    pp. 127-135
Abstract

Pb Isotope Compositions of Pyrite from the C Quartz-Tourmaline Vein of the Siscoe Gold Deposit, Val d'Or, Quebec: Constraints on the Origin and Age of the Gold Mineralization
G. R. Olivo, H. Isnard, A. E. Williams-Jones, and C. Gariépy    pp. 137-146
Abstract

The Ages of the Kabanga North and Kapalagulu Intrusions, Western Tanzania: A Reconnaissance Study
W. D. Maier, P. Peltonen, and T. Livesey    pp. 147-154
Abstract


Discussion and Reply

The Role of Exhumation in the Temporal Distribution of Ore Deposits (v. 101, no. 5, pp. 919-922) - A Discussion
D. I. Groves and R. J. Goldfarb    pp. 155-157

The Role of Exhumation in the Temporal Distribution of Ore Deposits (v. 101, no. 5, pp. 919-922) - A Reply
S. E. Kesler and B. W. Wilkinson    pp. 158


Book Reviews

Gold in the Yellowknife Greenstone Belt, Northwest Territories: Results of the EXTECH III Multidisciplinary Research Project (C. D. Anglin, H. Falck, D. F. Wright, and E. J. Ambrose, eds.)
K. F. Cassidy    pp. 159-160

Introduction to Mineral Exploration (C. Moon, M. Whateley, and A. Evans, eds.)
L. Meinert    pp. 161

Impact Structures in Canada (R. A. F. Grieve)
J. Whitehead    pp. 162

Reviews


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