Hydrogeology of the deepest underwater cave in the world: Hranice Abyss, Czechia
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F19%3A00510557" target="_blank" >RIV/67985831:_____/19:00510557 - isvavai.cz</a>
Alternative codes found
RIV/67985891:_____/19:00510557 RIV/00216208:11310/19:10406482 RIV/00025798:_____/19:00000206
Result on the web
<a href="https://link.springer.com/article/10.1007%2Fs10040-019-01999-w" target="_blank" >https://link.springer.com/article/10.1007%2Fs10040-019-01999-w</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10040-019-01999-w" target="_blank" >10.1007/s10040-019-01999-w</a>
Alternative languages
Result language
angličtina
Original language name
Hydrogeology of the deepest underwater cave in the world: Hranice Abyss, Czechia
Original language description
Little is known about water mixing in deep underwater cave shafts of hypogene karst. The Hranice Abyss (HA) in Czechia is currently the deepest underwater cave in the world. It shares a thermal and CO2-rich water source with an adjacent spa. Based on chemical and isotope composition, water in the HA is a mixture of shallow and thermal groundwaters. The shallow local groundwater is distinctly different from the adjacent Bečva River water in its elemental chemistry and sulfate δ34S values. The thermal water is mixed with 5–10% of modern water, based on tritium content and chlorofluorocarbons. Vertical profiling and deep sampling in the HA showed distinct changes with depth in temperature and TDS. Density-driven flow controls the mixing. In winter, the shallow water of the open HA lake is efficiently cooled, the denser surface water sinks to greater depths, which mixes the water column in the HA. During the summer the shallow water stagnates at the depth of 0–15 m. Periods of stagnation and of accelerated water flow and mixing in the HA perfectly fit with the periodic occurrence of CO2 evasion in the lake and the overall characteristics of the microbial communities, which showed the absence of any functional stratification. Ferric oxyhydroxide precipitation is the major cause for turbidity in the HA. Elevation-specific hydraulic responses of the HA groundwater, caused by the adjacent river’s level pulses, enabled a determination of the points along the river course at which the river is connected to groundwater by karst conduits.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Hydrogeology Journal
ISSN
1431-2174
e-ISSN
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Volume of the periodical
27
Issue of the periodical within the volume
7
Country of publishing house
DE - GERMANY
Number of pages
21
Pages from-to
2325-2345
UT code for WoS article
000502730500002
EID of the result in the Scopus database
2-s2.0-85068800270