ECONOMIC GEOLOGY
and the
Bulletin of the Society of Economic Geologists
Volume 100 January-February 2005 Number 1
Looking Back a Century to Volume 1, Number 1
Brian J. Skinner
Geology and SHRIMP U-Pb Geochronology of the Igarapé Bahia Deposit,Carajás Copper-Gold Belt,
Brazil: An Archean (2.57 Ga) Example of Iron-Oxide Cu-Au-(U-REE) Mineralization
Fernando H. B. Tallarico, Bernardino R. Figueiredo, David I. Groves, Natalie Kositcin,
Neal J. McNaughton, Ian R. Fletcher, and José L. Rego pp. 7-28
Abstract
U-Pb Zircon and Re-Os Isotope Geochronology of Mineralized Ultramafic Intrusions and Associated
Nickel Ores from the Thompson Nickel Belt, Manitoba, Canada
L. J. Hulbert, M. A. Hamilton, M. F. Horan, and R. F. J. Scoates pp. 29-41
Abstract
Geology, Petrology, and Controls on PGE Mineralization of the Southern Roby and
Twilight Zones, Lac des Iles Mine, Canada
J. G. Hinchey, K. H. Hattori, and M. J. Lavigne pp. 43-61
Abstract
Ore-Forming Processes in Irish-Type Carbonate-hosted Zn-Pb Deposits: Evidence from
Mineralogy, Chemistry and Isotopic Composition of Sulfides at the Lisheen Mine
J. J. Wilkinson, S. L. Eyre, and A. J. Boyce pp. 63-86
Abstract
Response of Supergene Processes to Episodic Cenozoic Uplift, Pediment Erosion, and Ignimbrite
Eruption in the Porphyry Copper Province of Southern Perú
Chan X. Quang, Alan H. Clark, James K. W. Lee, and Nicholas Hawkes pp. 87-114
Abstract
Mineralogical and Stable Isotope Studies of Kaolin Deposits: Shallow Epithermal Systems
of Western Sardinia, Italy
R. Simeone, J. H. Dilles, G. Padalino, and M. Palomba pp. 115-130
Abstract
Alunite in the Pascua-Lama High-Sulfidation Deposit:
Constraints on Alteration and Ore Deposition Using Stable Isotope Geochemistry
C. L. Deyell, R. Leonardson, R. O. Rye, J. F. H. Thompson, T. Bissig, and D. R. Cooke
pp. 131-148
Abstract
Scientific Communications
An Intrusive Origin for the Komatiitic Dunite-Hosted Mount Keith Disseminated
Nickel Sulphide Deposit, Western Australia
N. M. Rosengren, S. W. Beresford, B. A. Grguric, and R. A. F. Cas pp. 149-156
Abstract
Hydrous Sulfide Melting: Experimental Evidence for the Solubility of H2O
in Sulfide Melts
Jeremy L. Wykes and John A. Mavrogenes pp. 157-164
Abstract
The Kakopetros and Ravdoucha Iron-Oxide Deposits, Western Crete, Greece:
Fluid Transport and Mineralization within a Detachment Zone
Markus Seidel, Andreas Pack, Zachary D. Sharp, and Eberhard Seidel pp. 165-174
Abstract
Discussion and Reply
The Ridgeway Gold-Copper Deposit: A High-Grade Alkalic Porphyry Deposit in the Lachlan Fold Belt,
New South Wales, Australia (v. 98, no. 8. pp. 1637-1666) - A Discussion
R. E. Smith pp. 175-176
The Ridgeway Gold-Copper Deposit: A High-Grade Alkalic Porphyry Deposit in the Lachlan Fold Belt,
New South Wales, Australia (v. 98, no. 8. pp. 1637-1666) - A Reply
A. J. Wilson, D. R. Cooke, and B. L. Harper pp. 177-178
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