Vol. 301, Issue 10, 2001 | Published by American Journal of Science

Miscellaneous
FOREWORD
Lukas BaumgartnerStefan DürrAlbrecht W. HofmannDieter F. MertzCees W. PasschierUwe Ring
THIS ISSUE HONORS THE DISTINGUISHED SCIENTIST ALFRED KRO¨ NER, ON THE OCCASION OF HIS 60TH BIRTHDAY (1999) WITH CONTRIBUTIONS TO ASPECTS OF CONTEMPORARY EARTH SCIENCE.
Science Paper
The Incorporation of Hydroxyl Groups and Molecular Water in Natural Zircon (ZrSiO₄)
Lutz NasdalaAnton BeranEugen LibowitzkyDieter Wolf
The nature of “water” incorporated in natural zircon has been studied by polarized infrared absorption spectroscopy combined with heating and deuteration experiments and Raman, thermogravimetric, chemical, and X-ray analyses, and...
Science Paper
Ree, U, Th, and Hf Distribution in Zircon From Western Carpathian Variscan Granitoids: A Combined Cathodoluminescence and Ion Microprobe Study
Ulrike PollerJoachim HuthPETER HOPPEIAN S. WILLIAMS
A cathodoluminescence (CL) investigation on individual zircon crystals from Variscan S-type granites from the Western Carpathians has been combined with ion microprobe rare earth element (REE) and trace element analyses...
Science Paper
Alkaline Intrusions in a Near-Trench Setting, Franciscan Complex, California: Constraints From Geochemistry, Petrology, and ⁴⁰AR/³⁹AR Chronology
Dieter F. MertzAndreas J. WeinrichWarren D. SharpPaul R. Renne
Small gabbroic bodies intruding metagraywackes and cherts of the Late Mesozoic Franciscan Complex represent small-scale magmatic activity in a trench sedimentary environment or in the accretionary prism itself. At Leech...
Science Paper
Stacking of Nappes With Different Pressure-Temperature Paths: An Example From the Menderes Nappes of Western Turkey
Uwe RingArne P. WillnerWolf Lackmann
Pressure-temperature (P-T) paths have been estimated from metapelitic rocks in the lowermost Çine nappe and the directly underlying Bozdağ nappe of the Anatolide belt in western Turkey. Peak-metamorphic conditions in...