Abstract

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.

Recommended Citation

Olga V. Frank-Kamenetskaya, Dmitrii Yu Vlasov, Marina S. Zelenskaya, Irina V. Knauf, and Maryia A. Timasheva (2009) "Decaying of the marble and limestone monuments in the urban environment. Case studies from Saint Petersburg, Russia," Studia Universitatis Babes-Bolyai, Geologia: Vol. 54 : Iss. 2, Article 4.
Available at: http://services.bepress.com/geologia/vol54/iss2/art4