| dc.description.abstract | Abstract: This paper dealt with the study of chemical and biological weathering factors and their damages on different types of building stones of Sabratha Archaeological City. This study is based on discussing group-2 of weathering that proposed by Fitzner and Heinrichs (1999, 2000 and 2004) which known as "Discoloration/Deposit". According to field observations, six (6) main weathering forms has been found to effect the building stones of Sabratha archaeological City which specifically are: soiling effect, biological colonization effect, biological colonization to crust effect, discoloration effect, loose salt deposits effect and hard crust deposit effect. These included nine (9) individual weathering forms which precisely are: soiling due to anthropogenic impact, soiling by droppings, colonization by higher plants, microbiological colonization, colonization to dark-colored crust tracing the surface, bleaching, coloration, efflorescence and light-colored crust tracing the surface. The damage degrees of these weathering forms varied from non-visible to moderate with spreading degrees varied from very-limited to widespread. The linear and progradational indices of this group of weathering showed damage degrees varied from non-visible to moderate and from very-slight to moderate respectively and were widespread. Generally, the obtained results concerning biological and chemical damages on the building stones of Sabratha Archaeological City mentioned in this research, portending to some more deterioration in future and in order to protect the monuments of the city, some kind of remediation should be intervening. | en_US |
