ECONOMIC GEOLOGY and the Bulletin of the Society of Economic Geologists, 2003, V 98, N 1, Jan-Feb.

Gold Deposits in Metamorphic Belts: Overview of Current Understanding, 
Outstanding Problems, Future Research, and Exploration Significance
David I. Groves, Richard J. Goldfarb, Franc,ois Robert, and  Craig J.R. Hart

Source or sink?  An Assessment of the Role of the Old Red Sandstone in the 
Genesis of the Irish Zn-Pb Deposits
C. E. Everett, D. M. Rye, and R. M. Ellam
 
Unravelling the Geologic History of the Hemlo Archean Gold Deposit, Superior 
Province, Canada: A U-Pb Geochronological Study
Donald W. Davis and Shoufa Lin
 
Compositional Variations of Olivine and Sulfur Isotopes in the Noril'sk and 
Talnakh Intrusions, Siberia: Implications for Ore Forming Processes in Dynamic 
Magma Conduits
Chusi Li,  Edward M. Ripley, and Anthony J. Naldrett
 
The Chromite Deposit of the Ipueira-Medrado Sill, Sao Francisco Craton, Bahia 
State, Brazil
Juliana Charao Marques and Cesar Fonseca Ferreira Filho
 
Metamorphic Origin of Ore-Forming Fluids for Orogenic Gold-Quartz Vein Systems 
in the North American Cordillera:  Constraints from a Reconnaissance Study of  
d15N, dD, and d18O
Yiefei Jia, Robert Kerrich, and Richard Goldfarb
 
The Yulong Himalayan Porphyry Copper Belt: Product of Large-Scale Strike-Slip 
Faulting in Eastern Tibet
Hou Zengqian, Ma Hongwen, Khin Zaw, Zhang Yuquan, Wang Mingjie, Wang Zeng,
Pan Guitang, and Tang Renli
 
Formation of Anhydrous and Hydrous Skarn in Cu-Au Ore Deposits by Magmatic 
Fluids
L. D. Meinert, J. W. Hedenquist, H. Satho, and Y. Matsuhisa

Scientific Communications


Non-Redox Transformations of Magnetite-Hematite in Hydrothermal Systems
Hiroshi Ohmoto
 
A Sulfur, Carbon, Oxygen, and Strontium Isotope Study of the Volcanic-Hosted El 
Soldado Manto-Type Copper Deposit, Chile:  The Essential Role of Bacteria and 
Petroleum
Nicholas S. F. Wilson, Marcos Zentilli, and Baruch Spiro
 
Os-Os Dating of Copper and Molybdenum Deposits Along the Middle and Lower 
Reaches of the Yangtze River, China
Weidong Sun, Zhi Xie, Jiangfeng Chen, Xun Zhang, Zifang Chai, Andao Du,
Junshen Zhao, Chenghuo Zhang, and Taofa Zhou
 
Oxygen Isotope Study of Metamorphosed Manganese Deposits of the Noda-Tamagawa 
Mine, Northeast Japan
Ken-ichiro Hayashi and Mohammed El Rhazi