ECONOMIC GEOLOGY
and the Bulletin of the Society of Economic Geologists

Publications Board Chair: Stuart F. Simmons Richard J. Goldfarb Murray W. Hitzman David L. Kelley

Stephen E. Kesler François Robert Lawrence D. Meinert (Editor) Brian G. Hoal (ex officio), SEG Executive Director

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Editorial Office:

7811 Shaffer Parkway
Littleton, CO 80127-3732 USA
Tel: 720-981-7882
Fax: 720-981-7874
email: econgeol@segweb.org

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Editor: Lawrence D. Meinert

Book Reviews Editor: Richard Goldfarb, Denver, Colorado

Interesting Papers Editor: Robert Seal II, Reston, Virginia

Special Editors:
Richard J. Goldfarb, Denver, Colorado
Jeffrey W. Hedenquist, Ottawa, Canada
Stephen E. Kesler, Ann Arbor, Michigan

Production Managing Editor: Alice Bouley, Littleton, Colorado

Managing Editor: Mabel J. Peterson, New Haven, Connecticut

Graphic Design: Vivian Smallwood, Littleton, Colorado

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Past Editors of ECONOMIC GEOLOGY

    J. D. Irving, Lehigh University, then Yale University (1905-1917)
    A. M. Bateman, Yale University (1917-1969)
    B. J. Skinner, Yale University (1969-1996)
    M. T. Einaudi, Stanford University (1996-2002)
    M. D. Hannington, University of Ottawa (2002-2008)