1. On steep isogradic surfaces in the Simplon area

   • Albert Streckeisen
   • Eduard Wenk
   • Martin Frey

   OriginalPaper Pages: 81 - 95

2. The petrology of chondrules in the Hallingeberg meteorite

   • Robert T. Dodd

   OriginalPaper Pages: 97 - 112

3. Rb-Sr whole-rock dating of late diagenetic to anchimetamorphic, palaeozoic sediments in southern France (Montagne Noire)

   • D. Gebauer
   • M. Grünenfelder

   OriginalPaper Pages: 113 - 130

4. Strong site preference of Co²⁺ in olivine, Co_1.10Mg_0.90SiO₄

   • Subrata Ghose
   • Che'ng Wan

   OriginalPaper Pages: 131 - 140

5. Schiller effects and exsolution in sodium-rich plagioclases

   • Arne Olsen

   OriginalPaper Pages: 141 - 152

6. Fluid-bearing and fluid-absent invariant points in the system CaO-MgO-Al₂O₃-SiO₂-CO₂-H₂O for a greenschist facies assemblage

   • B. J. Watts

   OriginalPaper Pages: 153 - 164