ECONOMIC GEOLOGY
and the
Bulletin of the Society of Economic Geologists
Volume 99 September-October 2004 Number 6


The Hemlo Gold Deposit, Ontario: An Example of Melting and Mobilization of a Precious Metal-Sulfosalt Assemblage during Amphibolite Facies Metamorphism and Deformation
Andrew G. Tomkins, David R. M. Pattison, and Eva Zaleski    pp. 1063-1084
Abstract

Metal Sources in Mineral Deposits and Crustal Rocks of Ecuador (1°N–4°S): A Lead Isotope Synthesis
Massimo Chiaradia, Lluís Fontboté, and Agustín Paladines    pp. 1085-1106
Abstract


The Rossignol Fluorite Vein, Chaillac, France: Multiphase Hydrothermal Activity and Intravein Sedimentation
Stanislas Sizaret, Eric Marcoux, Michel Jébrak, and Jean C. Touray    pp. 1107-1122
Abstract


Timing and Duration of High-Temperature Gold Mineralization and Spatially Associated Granitoid Magmatism at Chalice, Yilgarn Craton, Western Australia
Louis A. Bucci, Neal J. McNaughton, Ian R. Fletcher, David I. Groves, Natalie Kositcin, Holly J. Stein, and Steffen G. Hagemann    pp. 1123-1144
Abstract


Modeling the Role of Sodic Alteration in the Genesis of Iron Oxide-Copper-Gold Deposits, Eastern Mount Isa Block, Australia
Nicholas H. S. Oliver, James S. Cleverley, Geordie Mark, Peter J. Pollard, Bin Fu, Lucas J. Marshall, Michael J. Rubenach, Patrick J. Williams, and Timothy Baker    pp. 1145-1176
Abstract


The Kwyjibo Cu-REE-U-Au-Mo-F Property, Quebec: A Mesoproterozoic Polymetallic Iron Oxide Deposit in the Northeastern Grenville Province
Michel Gauthier, Francis Chartrand, Alain Cayer, and Jean David    pp. 1177-1196
Abstract


The Mineralogy and Geochemistry of the Cerro Matoso S.A. Ni Laterite Deposit, Montelíbano, Colombia
S. A. Gleeson, R. J. Herrington, J. Durango, C. A. Velásquez, and G. Koll    pp. 1197-1213
Abstract



Scientific Communications

Re-Os and 40Ar/39Ar Ages of Porphyry Molybdenum Deposits in the East Greenland Volcanic-Rifted Margin
C. Kent Brooks, Christian Tegner, Holly Stein, and Bjørn Thomassen    pp. 1215-1222
Abstract


Sulfur and Lead Isotope Study of the El Mochito Zn-Pb-Ag Deposit
K. M. Ault and A. E. Williams-Jones    pp. 1223-1231
Abstract


Geochemistry and Mineralogy of Neoproterozoic Banded Iron-Formations and Some Selected, Siliceous Manganese Formations from the Urucum District, Mato Grosso do Sul, Brazil
Cornelis Klein and Eduardo A. Ladeira    pp. 1233-1244
Abstract



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