The results of a long-lasting research of sulphation process, which causes an essential deterioration of marble and limestone monuments in Saint Petersburg are reported. Based on a variety of field and analytical methods we can show that the decay process forming a gypsum-rich patina depends mainly on the local environment, the moisture accumulation, and is connected with the fissuring and porosity of the rock and the relief of a monument. Three main stages of gypsum-rich patina formation in the presence of microorganisms were revealed.
CITATION STYLE
Frank-Kamenetskaya, O., Vlasov, D., Zelenskaya, M., Knauf, I., & Timasheva, M. (2009). Decaying of the marble and limestone monuments in the urban environment. Case studies from Saint Petersburg, Russia. Studia Universitatis Babes-Bolyai, Geologia, 54(2), 17–22. https://doi.org/10.5038/1937-8602.54.2.4
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