A Tribute to the Career of Alfred Kröner
December 2001, A Special Issue of the American Journal of Science (v. 301, no. 10)

FOREWORD
Lukas Baumgartner, Stefan Dürr, Albrecht W. Hofmann, Dieter F. Mertz, Cees W. Passchier, and Uwe Ring

The incorpjoration of hydroxyl groups and molecular water in natural zircon (ZrSiO₄)
Lutz Nasdala, Anton Beran, Eugen Libwitzky, and Dieter Wolf

REE, U, Th, and Hf, distribution in zircon from western Carpathian Variscan granitoids: A combined cathodoluminescence and ion microprobe study
Ulrike Poller, Joachim Huth, Peter Hoppe, and Ian S. Williams

Alkaline intrusions in a near-trench setting, Franciscan Complex, California: Constraints from geochemistry, petrology, and ⁴⁰Ar/³⁹Ar chronology
Dieter Mertz, Andreas J. Weinrich, Warren D. Sharp, and Paul R. Renne

Stacking of Nappes with different pressure-temperature paths: An example from the Menderes Nappes of western Turkey
Uwe Ring, Arne P. Willner, and Wolf Lackmann