1. Argon retentivity and argon excess in amphiboles from the garbenschists of the Western Tauern Window, Eastern Alps

   • F. v. Blanckenburg
   • I. M. Villa

   OriginalPaper Pages: 1 - 11

2. Modelling of igneous fractionation and other processes using Pearce diagrams

   • Richard E. Ernst
   • Anthony D. Fowler
   • Thomas H. Pearce

   OriginalPaper Pages: 12 - 18

3. Chemistry of micas and chlorite in Proterozoic acid metavolcanics and associated rocks from the Hästefält area, Norberg ore district, central Sweden

   • A. A. AlDahan
   • P. Ounchanum
   • S. Morad

   OriginalPaper Pages: 19 - 34

4. Constraints on the origin of Archean trondhjemites based on phase relationships of Nûk gneiss with H₂O at 15 kbar

   • A. Dana Johnston
   • Peter J. Wyllie

   OriginalPaper Pages: 35 - 46

5. Petrogenesis of picrite and associated basalts from the southern Mid-Atlantic Ridge

   • Leon A. van Heerden
   • Anton P. le Roex

   OriginalPaper Pages: 47 - 60

6. Petrogenesis of spinel lherzolite and pyroxenite suite xenoliths from the Koolau shield, Oahu, Hawaii: Implications for petrology of the post-eruptive lithosphere beneath Oahu

   • Gautam Sen

   OriginalPaper Pages: 61 - 91

7. Calculation and application of clinopyroxene-garnet-plagioclase-quartz geobarometers

   • D. P. Moecher
   • E. J. Essene
   • L. M. Anovitz

   OriginalPaper Pages: 92 - 106

8. Origin of metaluminous and alkaline volcanic rocks of the Latir volcanic field, northern Rio Grande rift, New Mexico

   • Clark M. Johnson
   • Peter W. Lipman

   OriginalPaper Pages: 107 - 128