Carbonate neoformations on modern buildings and engineering structures in Tyumen city, Russia: Structural features and development factors

Andrey Novoselov, Alexandr Konstantinov, Lyubov Leonova, Bulat Soktoev, Sergey Morgalev

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The paper presents the results of studying the development of calcite neoformations on the surfaces of modern buildings within the city of Tyumen. The objects of the study were carbonate crusts and stalactite-like bodies formed on the surfaces of five representative buildings in the city center. Research methods included visual diagnostics, optical microscopy, scanning electron microscopy with energy dispersive X-ray spectroscopy, confocal laser scanning microscopy and semi-quantitative determination of the mineral composition by X-ray diffraction analysis. The results of the study show that calcite is the main component of all carbonate crusts, while other minerals were found in small quantities. The microscopic studies revealed the differences in morphology of crusts developing on horizontal and vertical surfaces. The mycelium of fungi (presumably of the Penicillium group), represented by filamentous and often hollow hyphae covered with calcite, as well as relics of bacterial colonies were found in all studied samples. It was noted that the mycelium forms the structural frame of carbonate crusts and stalactites. Studies have shown that the prokaryotic–eukaryotic communities are responsible for the high rate of the urban speleothem growth and play the main role in calcite precipitation at the initial stages of their development.

Original languageEnglish
Article number128
JournalGeosciences (Switzerland)
Volume9
Issue number3
DOIs
Publication statusPublished - 1 Mar 2019

Fingerprint

calcite
crust
carbonate
engineering
microscopy
stalactite
speleothem
research method
mineral
X-ray spectroscopy
laser
scanning electron microscopy
X-ray diffraction
fungus
city
energy

Keywords

  • Biomineralization
  • Calcite
  • Crusts
  • Fungi
  • Urban speleothems

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

Carbonate neoformations on modern buildings and engineering structures in Tyumen city, Russia : Structural features and development factors. / Novoselov, Andrey; Konstantinov, Alexandr; Leonova, Lyubov; Soktoev, Bulat; Morgalev, Sergey.

In: Geosciences (Switzerland), Vol. 9, No. 3, 128, 01.03.2019.

Research output: Contribution to journalArticle

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