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Hydrogeology of the Triglav Lakes Valley: hydrogeological map and schematic cross-sections of the Triglav Lakes Valley aquifer. ACTA CARSOLOGICA 48/3 -2019
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The Julian Alps are composed almost exclusively of Triassic to Lower Jurassic carbonates, which results in a karstified high-alpine landscape. In such settings, large water accumulations are not expected and precipitated water drains vertically, gathers in deep, large-scale aquifers, and outflows in large karstic springs located in deeply incised...
Contexts in source publication
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... of blocks along the connecting faults, which can be traced throughout the entire valley. Such structure is reflected in the "stair-like" topography of the TLV floor that is still recognizable, despite the reshaping of the glacier ( Fig. 2; for details see Šmuc & Rožič 2009). In the JLL area, however, this general structural trend is interrupted (Fig. 6). Namely, the central tectonic block (the basement block of the JLL) is lowered against the NE block, which is in accordance with the general trend here. But simultaneously, it is lowered also against the SW block, in opposition to the general setting. Such conditions are reflected also in specific geomorphological conditions, where the ...
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... in strong rock deformations and serve to deflect groundwater in karst systems (named as deflector faults in: Šušteršič et al. 2001; Šušteršič 2006; Čar 2018). The faults in the TLV are mostly vertical and therefore represent the lateral barriers of the aquifer. A particularly strong barrier is expected in the easterly-located Zelnarice fault (Fig. 6b), which represents a major fault in the fault wedge described above. The second kind of barrier is stratigraphic, and is represented by several clay interlayers that occur within the Lower Jurassic bedded limestones just above the thick oolithic megabed. It represents a generally vertical barrier but is, however, slightly inclined ...
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... propose that a large part of the TLV shallow subsurface actually forms small-scale interconnected aquifers, with the aquifer the JLL area (described above) being just one of them (Figs. 6c & 8). It is more correct to describe it as a single segmented aquifer, which we call the Triglav Lakes Valley aquifer (TLV aquifer). In the TLV aquifer each particular segment is defined by boundaries of corresponding tectonic block. Due to the described structural setting, tectonic blocks (aquifer segments) are gradually lowered towards ...
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... hydrogeological model is supported by a tracer test that proved the connection of the groundwater flow between JLL and the Močilec spring (Urbanc & Brancelj 1999, 2002Brancelj & Urbanc 2000). The Močilec spring is located approximately 2 km south, very close to the Dvojno jezero Lake ("Double Lake") (Fig. 6). The spring is typically karstic, as it displays high variations in water outflow. The water springs just below one of the connecting NW-SE faults, flows along the surface for a small distance, and sinks back into a particular segment of the aquifer. Only during extreme water events (e.g., snow-melt combined with heavy rain) does it ...
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... of blocks along the connecting faults, which can be traced throughout the entire valley. Such structure is reflected in the "stair-like" topography of the TLV floor that is still recognizable, despite the reshaping of the glacier ( Fig. 2; for details see Šmuc & Rožič 2009). In the JLL area, however, this general structural trend is interrupted (Fig. 6). Namely, the central tectonic block (the basement block of the JLL) is lowered against the NE block, which is in accordance with the general trend here. But simultaneously, it is lowered also against the SW block, in opposition to the general setting. Such conditions are reflected also in specific geomorphological conditions, where the ...
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... in strong rock deformations and serve to deflect groundwater in karst systems (named as deflector faults in: Šušteršič et al. 2001; Šušteršič 2006; Čar 2018). The faults in the TLV are mostly vertical and therefore represent the lateral barriers of the aquifer. A particularly strong barrier is expected in the easterly-located Zelnarice fault (Fig. 6b), which represents a major fault in the fault wedge described above. The second kind of barrier is stratigraphic, and is represented by several clay interlayers that occur within the Lower Jurassic bedded limestones just above the thick oolithic megabed. It represents a generally vertical barrier but is, however, slightly inclined ...
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... propose that a large part of the TLV shallow subsurface actually forms small-scale interconnected aquifers, with the aquifer the JLL area (described above) being just one of them (Figs. 6c & 8). It is more correct to describe it as a single segmented aquifer, which we call the Triglav Lakes Valley aquifer (TLV aquifer). In the TLV aquifer each particular segment is defined by boundaries of corresponding tectonic block. Due to the described structural setting, tectonic blocks (aquifer segments) are gradually lowered towards ...
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... hydrogeological model is supported by a tracer test that proved the connection of the groundwater flow between JLL and the Močilec spring (Urbanc & Brancelj 1999, 2002Brancelj & Urbanc 2000). The Močilec spring is located approximately 2 km south, very close to the Dvojno jezero Lake ("Double Lake") (Fig. 6). The spring is typically karstic, as it displays high variations in water outflow. The water springs just below one of the connecting NW-SE faults, flows along the surface for a small distance, and sinks back into a particular segment of the aquifer. Only during extreme water events (e.g., snow-melt combined with heavy rain) does it ...
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... of blocks along the connecting faults, which can be traced throughout the entire valley. Such structure is reflected in the "stair-like" topography of the TLV floor that is still recognizable, despite the reshaping of the glacier ( Fig. 2; for details see Šmuc & Rožič 2009). In the JLL area, however, this general structural trend is interrupted (Fig. 6). Namely, the central tectonic block (the basement block of the JLL) is lowered against the NE block, which is in accordance with the general trend here. But simultaneously, it is lowered also against the SW block, in opposition to the general setting. Such conditions are reflected also in specific geomorphological conditions, where the ...
Context 10
... in strong rock deformations and serve to deflect groundwater in karst systems (named as deflector faults in: Šušteršič et al. 2001; Šušteršič 2006; Čar 2018). The faults in the TLV are mostly vertical and therefore represent the lateral barriers of the aquifer. A particularly strong barrier is expected in the easterly-located Zelnarice fault (Fig. 6b), which represents a major fault in the fault wedge described above. The second kind of barrier is stratigraphic, and is represented by several clay interlayers that occur within the Lower Jurassic bedded limestones just above the thick oolithic megabed. It represents a generally vertical barrier but is, however, slightly inclined ...
Context 11
... propose that a large part of the TLV shallow subsurface actually forms small-scale interconnected aquifers, with the aquifer the JLL area (described above) being just one of them (Figs. 6c & 8). It is more correct to describe it as a single segmented aquifer, which we call the Triglav Lakes Valley aquifer (TLV aquifer). In the TLV aquifer each particular segment is defined by boundaries of corresponding tectonic block. Due to the described structural setting, tectonic blocks (aquifer segments) are gradually lowered towards ...
Context 12
... hydrogeological model is supported by a tracer test that proved the connection of the groundwater flow between JLL and the Močilec spring (Urbanc & Brancelj 1999, 2002Brancelj & Urbanc 2000). The Močilec spring is located approximately 2 km south, very close to the Dvojno jezero Lake ("Double Lake") (Fig. 6). The spring is typically karstic, as it displays high variations in water outflow. The water springs just below one of the connecting NW-SE faults, flows along the surface for a small distance, and sinks back into a particular segment of the aquifer. Only during extreme water events (e.g., snow-melt combined with heavy rain) does it ...
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... Calcimicrobes and ?Thaumatoporella are also commonly present. Similar assemblages characterise the platform tops from the Lower Jurassic of the peri-Mediterranean area (e.g., Chiocchini et al., 1994;Mancinelli et al., 2005;Rožič et al., 2019). Siphovalvulina is present also in the lower samples of the "Hierlatz facies" of the Zatrnik Formation. ...
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