ECONOMIC GEOLOGY
and the
Bulletin of the Society of Economic Geologists
Volume 103 May 2008 Number 3
Express Letter
Precise Age of the Platiniferous Merensky Reef, Bushveld Complex, South Africa,
by the U-Pb Zircon Chemical Abrasion ID-TIMS Technique
J. S. Scoates and R. M. Friedman pp. 465-471
Abstract
Regular Papers
Hydrothermal Evolution of the Porphyry Copper Deposit at La Caridad, Sonora, Mexico,
and the Relationship with a Neighboring High-Sulfidation Epithermal Deposit
V. A. Valencia, C. Eastoe, J. Ruiz, L. Ochoa-Landin, G. Gehrels, C. González-Leon, F. Barra,
and E. Espinoza pp. 473-491
Abstract
Mineral Zoning and Geochemistry of Epithermal Polymetallic Zn-Pb-Ag-Cu-Bi Mineralization at
Cerro de Pasco, Peru
R. Baumgartner, L. Fontboté, and T. Vennemann pp. 493-537
Abstract
Synthetic Fluid Inclusions. XVII. PVTX Properties of High Salinity H2O-NaCl Solutions
(>30 wt % NaCl): Application to Fluid Inclusions that Homogenize by Halite Disappearance from
Porphyry Copper and Other Hydrothermal Ore Deposits
S. P. Becker, A. Fall, and R. J. Bodnar pp. 539-554
Abstract
Postorogenic Origin of the Stratiform Cu Mineralization at Lufukwe, Lufilian
Foreland, Democratic Republic of Congo
H. A. El Desouky, P. Muchez, S. Dewaele, A. Boutwood, and R. Tyler pp. 555-582
Abstract
Uranium Metallogenesis in South China and Its Relationship to Crustal Extension
during the Cretaceous to Tertiary
R-Z. Hu, X-W. Bi, M-F. Zhou, J-T. Peng, W-C. Su, S. Liu, and H-W. Qi pp. 583-598
Abstract
Bimodal Distribution of Gold in Pyrite and Arsenopyrite: Examples from the Archean Boorara
and Bardoc Shear Systems, Yilgarn Craton, Western Australia
A. A. Morey, A. G. Tomkins, F. P. Bierlein, R. F. Weinberg, and G. J. Davidson pp. 599-614
Abstract
Revisiting the Cumulative Grade-Tonnage Relationship for Major Copper Ore Types
M. D. Gerst pp. 615-628
Abstract
Scientific Communications
Tertiary Tilting and Dismemberment of the Laramide Arc and Related Hydrothermal Systems,
Sierrita Mountains, Arizona
W. J. A. Stavast, R. F. Butler, E. Seedorff, M. D. Barton, and C. A. Ferguson
pp. 629-636
Abstract
Image Analysis and Composition of Platinum-Group Minerals in the J-M Reef, Stillwater
Complex (U.S.A.)
B. Godel and S-J. Barnes pp. 637-651
Abstract
Book Reviews
Geology of Mexico: Celebrating the Centenary of the Geological Society of Mexico
(S. A. Aivarez and A. F. Nieto-Samaniego, eds.)
F. Barra pp. 653-654
Mineralogy and Optical Mineralogy (M. Darby Dyar and M. E. Gunter)
R. D. Hagni pp. 654-655
Understanding and Responding to Hazardous Substances at Mine Sites in the Western
United States (J. V. Degraff, ed.)
T. Trainor pp. 655
Reviews
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