The Evolution of the Igneous Rocks, by N. L. Bowen, appeared in 1928
and had a profound influence on later generations of petrologists.
Drawing on his series of lectures at Princeton University in the spring
of 1927, Dr. Bowen identified, outlined, and applied the principles of
physical chemistry relevant to petrological processes. Whereas the major
petrochemical questions he discussed are still relevant today, the
answers appear to change with time. The purpose of the present volume is
to provide an updated view of those questions, in the light of almost
fifty years of accumulated observations, using the principles Bowen set
forth.
Originally published in 1979.
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