PRELIMINARY RESULTS FOR THE INFLUENCE OF LICHENS ON ARCHAEOLOGICAL MONUMENTS IN STOBI LOCALITY

Abstract

This paper provides preliminary data for influence of gray and yellow lichens on archeological monuments in Stobi. Also was determinated the origin of the minerals which adhere to the rhizine/hyphae. According of the SEM results, in lichen are found small grains of minerals which originated from parent rocks or weathering. In the lichens on marble was determinated the present of the following minerals:calcite, dolomite, Fe carbonate, Ca silicate, Ca,Fe,Al silicate and Fe,Al silicate. Carbonate minerals come from marble while silicates are the result of weathering.

In lichens on sandstone ware determined the following minerals: K,Al silicate,  Ca carbonate quartz Fe,Mg silicate,  Fe-oxide,  zircon, and  Na, Ca,Al silicate. Carbonate minerals are result of weathering while other determinated minerals originate from sandstone. Clay minerals are a result of the decomposition of feldspars.