Series

Developments in Petrology

1. K.R. Mehnert

MIGMATITES AND THE ORIGIN OF GRANITIC ROCKS

2. V . Marmo

GRANITE PETROLOGY AND THE GRANITE PROBLEM

3. J. Didier

GRANITES A N D THEIR ENCLAVES

The Bearing of Enclaves on the Origin of Granites

4. J.A. O'Keefe

TEKTITES A N D THEIR ORIGIN

5. C.J. Allègre and S.R. Hart (Editors)

TRACE ELEMENTS IN IGNEOUS PETROLOGY

6. F. Barker (Editor)

TRONDHJEMITES, DACITES, A N D RELATED ROCKS