USING REFLECTIVE SPECTROPHOTOMETRY TO DETERMINE THE BIODEGRADATION OFMONUMENTS MADE FROM MARBLE

Different spatial spectral dependences of the reflectance are obtained for marble from different sites. This increases the information conte nt of the measurements and makes it possible to use the dependences as supplementary attributes in identifying the marble. Biodegradation of marble is studied on samples inoculated with melanin-containing micro mycetes. The reflection of the samples changes most substantially 1-1. 5 months after inoculation, and this can be used to diagnose the biode gradation of marble. (C) 1998 The Optical Society of America.