Calcite raft formation in abandoned technical adit (Moravian Karst)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F22%3A00000040" target="_blank" >RIV/00025798:_____/22:00000040 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/22:00127421
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0883292722000865" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0883292722000865</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apgeochem.2022.105282" target="_blank" >10.1016/j.apgeochem.2022.105282</a>

Result language
angličtina
Original language name
Calcite raft formation in abandoned technical adit (Moravian Karst)
Original language description
Current knowledge about the formation of calcite rafts was summarized and expanded with new data from theenvironment of a technical adit excavated in the 1950s in the central part of the Moravian Karst (Czech Republic).The location is within the temperate zone with an average annual temperature of 7–8 ◦C and an annualprecipitation of 550–650 mm. Two different types of calcite rafts were identified: fine floating rafts (FF rafts) andmassive calcite crusts (MC rafts). The transition from the FF raft to the MC raft requires the raft to be anchored tothe side bank of the water pool. Once the FF rafts are anchored, they can grow on both sides (top and bottom) ofthe original air-water interface to form MC rafts. A comparison of water evaporation with CO2 degassing undergiven conditions showed that just degassing has been the key factor in achieving adequate supersaturation of dripwater for nucleation of calcite at the air-water interface and for subsequent crystal growth. The conceptual twolayermodel was designed and discussed in terms of the partial pressures of CO2 in the air and water in the adit.The discussion of the role of rafts in speleogenesis and paleohydrological reconstruction is supported by examplesfrom the Sloup-ˇSoˇsůvka caves (Moravian Karst).
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
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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