Corrosion of calcite speleothems in epigenic caves of Moravian Karst (Czech Republic)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F24%3A10169176" target="_blank" >RIV/00025798:_____/24:10169176 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/24:00135514 RIV/00216305:26220/24:PU152413
Result on the web
<a href="https://doi.org/10.1007/s12665-024-11449-w" target="_blank" >https://doi.org/10.1007/s12665-024-11449-w</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s12665-024-11449-w" target="_blank" >10.1007/s12665-024-11449-w</a>

Result language
angličtina
Original language name
Corrosion of calcite speleothems in epigenic caves of Moravian Karst (Czech Republic)
Original language description
Corrosion processes were studied in epigenic caves of the Moravian Karst (MK). Samples of naturally corroded speleothems and carbonate rocks collected in various MK caves were compared with limestone and calcite standards that were corroded under well-controlled conditions in the laboratory. Two stages of corrosion were distinguished: (1) an early stage of pitting and linear corrosion predisposed by point and line defects in the standards, and (2) an advanced stage characterized by deep corrosion of the entire standard surface. During the second stage, the internal structure of the corroded substrate remained partially preserved, however, if the water was extremely aggressive, the corrosion progressed to depth en-bloc regardless of the structure. In this paper, we (1) proposed a new corrosion mechanism based on the binding of aqueous calcium by clays and tested it experimentally in the cave, (2) characterized conditions that generally favor the formation of aggressive waters (water undersaturated with calcite) into seven categories incorporating them into a conceptual model of the karst vertical profile, and (3) discussed anthropogenic influences on these processes.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10505 - Geology

Project
<a href="/en/project/SS02030023" target="_blank" >SS02030023: Rock Environment and Natural Resources</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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