Petrology and plate tectonics

Petrology played an important role in the formulation of plate tectonics and early plate tectonic interpretations of the geologic past. In the last few years widespread interest in plate tectonics and progress in plate tectonic interpretations have begun to give petrology various feedback effects. In the period 1971–1974 there were two symposiums intended particularly to connect petrology with plate tectonics [ Wyllie , 1973; Yoder , 1971]. Some other symposiums in plate tectonics involved the reading of a paper or papers dealing with petrologic problems.