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Researchers came together to discuss melting and melt-movement in the Earth at a 2-day Royal Society Discussion Meeting held in March 1992 at the Royal Society, London.

In recent years, many new tools have become available to geologists studying igneous and metamorphic rocks. They can be examined at ever-higher magnifications: the composition within individual crystals can be measured; their isotopic, trace, and rare-earth element concentrations can be determined; and measurements of partition coefficients and melting behavior can be made in the laboratory at pressures and temperatures appropriate to in-situ rocks. Along with these improvements in instrumentation and experimental techniques, advances have been made in understanding the physics of melt generation and separation, and computers have been developed that are sufficiently powerful to model theoretical formulations of the behavior of melt in the Earth.