ECONOMIC GEOLOGY. Volume 91 November 1996 Number 7

Assessing Metasomatic Mass and Volume Changes using the Bootstrap, with
Application to Deep-crustal Hydrothermal Alteration of Marble 

Jay. J. Ague and Joost L.M. van Haren

Phase Relations among Selenides, Sulfides, Tellurides and Oxides: I.
Thermodynamic Data and Calculated Equilibria 

Grigore Simon and Eric J. Essene

Age and Radiogenic Isotopic Characteristics of the Au-Ag-rich Eskay
Creek VMS deposit, British Columbia: Constraints from U-Pb Geochronology
and Nd and Pb 

Fiona Childe

Archaean and Proterozoic Mineralization and Tectonics at Renco Mine
(Northern Marginal Zone, Limpopo Belt, Zimbabwe) 

T.G. Blenkinsop and R. Frei

Hydrothermal Characterization of the West Gore Sb-Au Deposit, Meguma
Terrane, Southern Nova Scotia 

Daniel J. Kontak, Paul K. Smith, and Richard J. Horne

U-Pb Geochronology of the Sublayer Environment, Sudbury Igneous Complex,
Ontario 

F. Corfu and Peter C. Lightfoot 

Fluid Inclusion and Sulfur Isotope Studies of the Tintic Mining District,
Utah: Implications for Targeting Fluid Sources 

Stephen C. Hildreth, Jr. and Judith L. Hannah 

Significance of Tourmaline-rich Rocks in the North Range Group of the
Cuyuna Iron Range, East-Central Minnesota 

Jane M. Cleland, G.B. Morey, and Peter L. McSwiggen 

Lead and Sulfur Isotopic Compositions of the Ibias Gold Vein System
(NW Spain): Genetic Implications 

Daniel Arias Prieto, L.G. Corrétge, O. Suárez, L. Villa,
A. Cuesta, and G. Gallastegui

The Manto-Type Gold Deposits of Andacollo (Chile) Revisited: A Model
Based on Fluid Inclusion and Geological Evidence 

Roberto Oyarzun, Lorena Ortega, Josefina Sierra, Rosario Lunar, and
Jorge Oyarzun

Indirect Age Determination of Kuppferschiefer-type Mineralization in
the Polish Basin by K/AR-Dating of Illite 

Achim Bechtel, W.C. Elliott, and S. Oszczepalski 

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