1. Aspects of ultrabasic and basic alkaline intrusive rocks from Bitterfontein, South Africa

   • J. R. McIver

   OriginalPaper Pages: 1 - 11

2. Shock metamorphism in sillimanite from the Haughton impact structure, Devon Island, Canada

   • P. Blyth Robertson
   • A. G. Plant

   OriginalPaper Pages: 12 - 20

3. Microphenocrystic pyrrhotite from dacite rocks of Satsuma-Iwojima, southwest Kyushu, Japan and the solubility of sulfur in dacite magma

   • Akira Ueda
   • Tetsumaru Itaya

   OriginalPaper Pages: 21 - 26

4. Crystal fractionation and partial melting in the petrogenesis of a Proterozoic high-MgO volcanic suite, Ungava, Québec

   • D. M. Francis
   • A. J. Hynes
   • J. Bédard

   OriginalPaper Pages: 27 - 36

5. Geochemical characteristics of potassic volcanics from Mts. Ernici (Southern Latium, Italy)

   • L. Civetta
   • F. Innocenti
   • G. Poli

   OriginalPaper Pages: 37 - 47

6. Paragenetic relations in gedrite — cordierite — staurolite — biotite sillimanite — kyanite gneisses at Ajitpura, Rajasthan, India

   • Ram S. Sharma
   • Neil D. MacRae

   OriginalPaper Pages: 48 - 60

7. Rb-Sr whole-rock and ⁴⁰Ar/³⁹Ar mineral ages of the Togus and Hallowell quartz monzonite and Three Mile Pond granodiorite plutons, South-Central Maine: Their bearing on post-Acadian cooling history

   • R. D. Dallmeyer
   • O. VanBreeman

   OriginalPaper Pages: 61 - 73

8. Rb/Sr isotopic and geochemical evolution of a recrystallized shear (mylonite) zone at Broken Hill

   • M. A. Etheridge
   • J. A. Cooper

   OriginalPaper Pages: 74 - 84

9. On the crystallinity, probability of occurrence, and rheology of lava and magma

   • B. D. Marsh

   OriginalPaper Pages: 85 - 98

10. The Al₂O₃ contents of enstatite in equilibrium with garnet in the system MgO-Al₂O₃-SiO₂ at 15–40 kbar and 900°–1,600° C

    • D. Perkins III
    • T. J. B. Holland
    • R. C. Newton

    OriginalPaper Pages: 99 - 109