particularly stable environment over a period of nearly 2000 TURKEY: AN APPLICATION OF SURFACE years. The corrosion of a series of glass-in-lead windows from ANALYSIS IN ANCIENT METALLURGY St. Michael and St. Goedele's Cathedral, Brussels, was studied This section demonstrates the use of micro and surface analysis using electron probe microanalysis and micro X-ray methods for the study and analysis of ancient metallurgical fluorescence. New views can be formulated on the corrosion artefacts. The project that will be considered runs in collab- mechanism, which appears to be a complex multiphase process oration with The Oriental Institute in Chicago. It concerns under the influence of atmospheric pollution. A few preliminary the excavation of a mining complex containing tin ore and results are discussed for the analysis of glass paintings, in an associated production/habitation site in South Central particular carnation red glass paints. Turkey. Both sites have been dated to the Early Bronze Age