VN Kučišdorf

Geological structure beneath the water

Which rock lies beneath the water line (Geological Map of Slovakia 1:50,000), how old it is, how thick the Quaternary cover is and in which tectonic unit the water flows. The bedrock decides the hardness of the water, the bottom, the turbidity after rain and the abundance of springs.

The points follow the water line (for a stream and a basin, fishing district after fishing district). The strip is a cross-section by distance, not a map; the width of a section corresponds to the number of points.

• River alluvium100%SR 72 %

marker on the bar: share among all sample points on streams in Slovakia

River alluvium: Gravelly and sandy bottom and floodplains; the water is replenished from groundwater in the alluvium.

Geological age of the rocks

• Quaternary100%

Most common rock units

Quaternary cover

• fluvial sediments of floodplains100%SR 68 %

marker on the bar: share among all sample points on streams in Slovakia

Neotectonic units

• positive unit (mountain range)100%SR 60 %

marker on the bar: share among all sample points on streams in Slovakia

Direction of neotectonic movements

• medium uplift100%SR 32 %

marker on the bar: share among all sample points on streams in Slovakia

Regional geological division

• core mountains100%SR 11 %

marker on the bar: share among all sample points on streams in Slovakia

Regional geological division (subunits)

• Malé Karpaty100%SR 1.4 %

marker on the bar: share among all sample points on streams in Slovakia

Susceptibility of the area to slope deformations

• Region of stable areas100%SR 95 %

marker on the bar: share among all sample points on streams in Slovakia

The map covers 1 of 1 points on the water line.

Hydrogeology: aquifers and groundwater

Streams and rivers are fed by groundwater. Hydrogeological maps show in which rocks the water is stored, how permeable they are and what the water in them is like. The data come from ŠGÚDŠ maps, not from measurements at a particular water.

Type of permeability (basic hydrogeological map 1:50,000)

• intergranular100%SR 86 %

marker on the bar: share among all sample points on streams in Slovakia

Hydrogeological function

• aquifer100%SR 95 %

marker on the bar: share among all sample points on streams in Slovakia

Main hydrogeological region

• crystalline and Mesozoic of the southeastern part of the Pezinok Carpathians100%SR 0.0 %

marker on the bar: share among all sample points on streams in Slovakia

Genetic type of groundwater

• silicate-carbonate to polygenic100%SR 1.1 %

marker on the bar: share among all sample points on streams in Slovakia

Groundwater quality class

• B100%SR 18 %

marker on the bar: share among all sample points on streams in Slovakia

Surface water chemistry according to the atlas

Modelled composition of the water in the area the fishing district line runs through. The rasters of the Geochemical Atlas of Slovakia (surface waters) are an interpolation of measurements in sampled streams, so they show the typical background of the area, not a measurement in a particular stream.

Ionic composition of the water

Water type by dominant ions: Ca–HCO₃–SO₄

Shares are in equivalents, the usual way of comparing the composition of waters.

Major ions

• SulphatesSO467.1 mg/lpercentile 74
• SodiumNa10.7 mg/lpercentile 57
• PotassiumK2.76 mg/lpercentile 46
• FluoridesF0.106 mg/lpercentile 45
• ChloridesCl5.33 mg/lpercentile 36
• MagnesiumMg9.60 mg/lpercentile 30
• CalciumCa41.4 mg/lpercentile 29
• BicarbonatesHCO3119 mg/lpercentile 24

dot: average along the water line, line: from the lowest to the highest value, scale: position among sample points on streams in Slovakia (0 to 100th percentile)

Nutrients and organic pollution

• Chemical oxygen demandChSK3.65 mg/lpercentile 60
• PhosphatesPO40.0870 mg/lpercentile 40
• AmmoniumNH40.0797 mg/lpercentile 39
• NitratesNO32.07 mg/lpercentile 8

Metals

• ZincZn12.2 μg/lpercentile 72
• ManganeseMn31.2 μg/lpercentile 50
• IronFe0.0538 mg/lpercentile 25
• AluminiumAl22.8 μg/lpercentile 22

Elements in river sediments

The Geochemical Atlas of Slovakia (river sediments) describes what the river carries in the fine material on its bed. Sediment collects metals from rocks, ore occurrences and past mining and industry. It is not a legal limit or a health risk assessment: it shows how an element on this stream ranks among streams in Slovakia.

Potentially toxic and trace elements

• ArsenicAs65.4 mg/kgpercentile 95
• MolybdenumMo1.68 mg/kgpercentile 95
• AntimonySb18.8 mg/kgpercentile 95
• CobaltCo14.7 mg/kgpercentile 94
• NickelNi40.7 mg/kgpercentile 90
• CopperCu48.2 mg/kgpercentile 88
• VanadiumV94.3 mg/kgpercentile 86
• CadmiumCd0.476 mg/kgpercentile 85
• ZincZn157 mg/kgpercentile 82
• MercuryHg0.165 mg/kgpercentile 69
• TinSn2.87 mg/kgpercentile 58
• SeleniumSe0.280 mg/kgpercentile 58
• BismuthBi0.233 mg/kgpercentile 57
• ChromiumCr59.4 mg/kgpercentile 29
• LeadPb12.2 mg/kgpercentile 28

dot: average along the water line, line: from the lowest to the highest value, scale: position among sample points on streams in Slovakia (0 to 100th percentile)

Natural radioactivity and radon

Airborne gamma-ray spectrometry by ŠGÚDŠ measures radiation from potassium, uranium and thorium in rocks and soil. Granites and some acidic volcanic rocks have the highest values, limestones and floodplains the lowest. Caesium-137 is a remnant of fallout from the Chernobyl accident and nuclear weapons tests.

• Potassium (K)K1.45 %percentile 80
• Equivalent uranium (eU)eU2.72 ppm67th percentile
• Equivalent thorium (eTh)eTh7.35 ppm51th percentile

dot: average along the water line, line: from the lowest to the highest value, scale: position among sample points on streams in Slovakia (0 to 100th percentile)

• Areal activity of 137CsCS1371,080 Bq/m²percentile 23

Radon risk by isopleths

• medium100%SR 64 %

marker on the bar: share among all sample points on streams in Slovakia

Geophysical fields: magnetics and gravity

Maps of the magnetic field and gravity (ŠGÚDŠ) reveal what lies beneath the sediments and the surface: volcanic bodies, faults and crustal thickness. For an angler they are interesting indirectly: they show where the bedrock changes, and with it the water.

Geothermal potential

The Atlas of Geothermal Energy of Slovakia records rock temperature and heat flow from the Earth's interior. It is the potential of the area, not the actual warmth of the water in the stream. Specific geothermal boreholes and springs near this water are in the geothermal energy section below.

• Surface heat flow density55mW/m²

Relief, climate and soils

A basin is not just water: slope and elevation determine the speed of runoff, climate the temperature and amount of water, and soils what is washed into the stream. The data come from the geomorphological division, climatic-geographical types and soil maps of ŠGÚDŠ.

• Elevation of geomorphological units (from–to)132–709m a.s.l.
• Average elevation of the units371m a.s.l.
• Average slope9.6°

Geomorphological units

• Malé Karpaty100%SR 1.4 %

marker on the bar: share among all sample points on streams in Slovakia

Geomorphological regions

• Fatra–Tatra area100%SR 21 %

marker on the bar: share among all sample points on streams in Slovakia

Soil contamination (map 1:500,000)

• uncontaminated soil, the geogenically determined content of some risk elements reaches limit values A100%SR 45 %

marker on the bar: share among all sample points on streams in Slovakia

Map of the corridor

Where the nearest mine workings, deposits, burdens, geothermal boreholes and gold finds are. Groups can be switched off.

Trace elements in surface waters

Arsenic, antimony, cadmium, lead, copper, zinc and other elements in samples from rivers and streams (Geochemical Atlas of Slovakia, surface waters, 2015). The bar shows where the highest value lies among all samples in Slovakia; the light marker is the median of the samples at this water.

• CopperCuhigh (top 5 %)
  highest 14.0 μg/lmedian 3.30 μg/l3 samples
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: potok, 400 m J od kóty Široký vrch 3261999, 440 m from the water. Comparison: percentile 96 of all samples in Slovakia.

• BariumBaelevated (top 10 %)
  highest 115 μg/lmedian 93.0 μg/l3 samples
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: ľavostr. prítok Trnianskeho p. pod Širokým vrchom1999, 940 m from the water. Comparison: percentile 93 of all samples in Slovakia.

• ArsenicAsslightly elevated
  highest 2.00 μg/lmedian 1.00 μg/l3 samples33 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: ľavostr. prítok Trnianskeho p. pod Širokým vrchom1999, 940 m from the water. Comparison: percentile 75 of all samples in Slovakia.

• SeleniumSebelow half of Slovakia
  highest 0.500 μg/lmedian 0.500 μg/l3 samples100 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: bez mena2000, 870 m from the water. Comparison: percentile 46 of all samples in Slovakia.

• LeadPbbelow half of Slovakia
  highest 2.50 μg/lmedian 2.50 μg/l3 samples100 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: bez mena2000, 870 m from the water. Comparison: percentile 43 of all samples in Slovakia.

• AntimonySbbelow half of Slovakia
  highest 0.500 μg/lmedian 0.500 μg/l3 samples100 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: bez mena2000, 870 m from the water. Comparison: percentile 37 of all samples in Slovakia.

• LithiumLibelow half of Slovakia
  highest 5.00 μg/lmedian 5.00 μg/l3 samples100 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: bez mena2000, 870 m from the water. Comparison: percentile 34 of all samples in Slovakia.

• ChromiumCrbelow half of Slovakia
  highest 1.00 μg/lmedian 1.00 μg/l3 samples100 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: bez mena2000, 870 m from the water. Comparison: percentile 32 of all samples in Slovakia.

• CadmiumCdbelow half of Slovakia
  highest 0.150 μg/lmedian 0.150 μg/l3 samples100 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: bez mena, 870 m from the water. Comparison: percentile 26 of all samples in Slovakia.

Major ions, mineralisation and pH

Basic water chemistry: which rocks the minerals in it come from.

• Silicon dioxideSiO2elevated (top 10 %)
  highest 34.5 mg/lmedian 28.1 mg/l3 samples
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: potok, 400 m J od kóty Široký vrch 3261999, 440 m from the water. Comparison: percentile 92 of all samples in Slovakia.

Gold and ore minerals in river sediments

Regional panning prospecting: the heavy fraction was washed out of river gravel and the mineral grains in it were counted. The map of finds is positive: a sample without gold is not listed in the atlas, so the absence of a find is not proof that there is no gold.

• Anatas (TiO₂)4 samples, at most 5 grains
• Barite (BaSO₄)4 samples, at most 55 grains
• Hematite (Fe₂O₃)4 samples, at most 55 grains
• Ilmenit (FeTiO₃)4 samples, at most 1815 grains
• Limonite (FeO(OH)·nH₂O)4 samples, at most 315 grains
• Magnetite (Fe₃O₄)4 samples, at most 55 grains
• Rutil (TiO₂)4 samples, at most 315 grains
• Monazit ((Ce,La,Nd)PO₄)3 samples, at most 55 grains
• Pyrite (FeS₂)2 samples, at most 5 grains
• Gold (Au)1 sample, at most 1 grains
• Scheelit (CaWO₄)1 sample, at most 2 grains

Nearest samples with gold

Rock-forming and accessory minerals

• Amfiboly (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂)4 samples, at most 815 grains
• Andaluzit (Al₂SiO₅)4 samples, at most 15 grains
• Epidot (Ca₂(Al,Fe)₃Si₃O₁₂(OH))4 samples, at most 1115 grains
• Granáty ((Fe,Mg,Ca,Mn)₃Al₂Si₃O₁₂)4 samples, at most 1815 grains
• Kyanit (Al₂SiO₅)4 samples, at most 55 grains
• Sillimanit (Al₂SiO₅)4 samples, at most 55 grains
• Staurolit (Fe₂Al₉Si₄O₂₃(OH))4 samples, at most 315 grains
• Titanit (CaTiSiO₅)4 samples, at most 446 grains
• Tourmalines (complex borosilicate)4 samples, at most 55 grains
• Zirconium (ZrSiO₄)4 samples, at most 315 grains
• Pyroxény ((Mg,Fe,Ca)₂Si₂O₆)3 samples, at most 315 grains
• Apatit (Ca₅(PO₄)₃(F,Cl,OH))3 samples, at most 55 grains
• Korund (Al₂O₃)1 sample, at most 5 grains
• Spinel (Cr-spinel) ((Mg,Fe)(Al,Cr)₂O₄)1 sample, at most 5 grains

Groundwater: chemistry, water types and radioactivity

Hydrogeochemical objects (analyses of springs and boreholes), the geochemical atlas of groundwater (1996) and radiohydrochemical sampling. Groundwater feeds streams, so its composition also affects the water in the stream.

Chemical water types nearby

• CaHCO35×
• CaMgHCO33×
• CaSO43×
• CaMgSO42×
• CaMgSO4HCO32×
• CaSO4HCO32×
• Ca-SO4-HCO31×

Water quality class according to the hydrogeochemical map

• class C5×
• class H3×
• class B3×
• class D2×
• class E2×
• class A2×
• class F1×

Metals in groundwater

• AntimonySbextreme (top 1 %)
  highest 34.2 μg/lmedian 0.300 μg/l9 samples44 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: štôlňa1994, 2.2 km from the water. Comparison: percentile 99 of all samples in Slovakia.

• ArsenicAsextreme (top 1 %)
  highest 14.9 μg/lmedian 1.70 μg/l9 samples33 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: drenáž1993, 2.8 km from the water. Comparison: percentile 99 of all samples in Slovakia.

• CopperCuhigh (top 5 %)
  highest 13.0 μg/lmedian 1.10 μg/l9 samples
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: drenáž1993, 2.8 km from the water. Comparison: percentile 98 of all samples in Slovakia.

• LithiumLihigh (top 5 %)
  highest 77.0 μg/lmedian 16.0 μg/l9 samples
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: štôlňa1994, 2.2 km from the water. Comparison: percentile 96 of all samples in Slovakia.

• SeleniumSehigh (top 5 %)
  highest 3.10 μg/lmedian 0.500 μg/l9 samples89 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: studňa1994, 1.5 km from the water. Comparison: percentile 96 of all samples in Slovakia.

• ChromiumCrelevated (top 10 %)
  highest 2.70 μg/lmedian 0.800 μg/l9 samples44 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: studňa1994, 730 m from the water. Comparison: percentile 92 of all samples in Slovakia.

• AluminiumAlelevated (top 10 %)
  highest 0.0500 mg/lmedian 0.0100 mg/l9 samples33 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: studňa1994, 2.4 km from the water. Comparison: percentile 91 of all samples in Slovakia.

• LeadPbslightly elevated
  highest 1.00 μg/lmedian 0.500 μg/l9 samples89 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: studňa1994, 730 m from the water. Comparison: percentile 75 of all samples in Slovakia.

• ZincZntypical value
  highest 117 μg/lmedian 29.0 μg/l9 samples
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: štôlňa1994, 2.2 km from the water. Comparison: percentile 73 of all samples in Slovakia.

• IronFetypical value
  highest 0.00500 mg/lmedian 0.00500 mg/l1 sample100 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: drenáž1993, 2.8 km from the water. Comparison: percentile 50 of all samples in Slovakia.

• CadmiumCdbelow half of Slovakia
  highest 0.250 μg/lmedian 0.250 μg/l9 samples100 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: drenáž1993, 2.8 km from the water. Comparison: percentile 47 of all samples in Slovakia.

• MercuryHgbelow half of Slovakia
  highest 0.100 μg/lmedian 0.100 μg/l9 samples100 % below the limit of quantification
  1. up to 50 %
  2. 50–75
  3. 75–90
  4. 90–99
  5. above 99

  Highest value: drenáž1993, 2.8 km from the water. Comparison: percentile 46 of all samples in Slovakia.

Radon in waters

Mine workings, deposits and ore occurrences

Old mine workings outside mining areas (Geofond register), deposits and mining areas, and the metallogenetic map. Gold, silver and other metals near streams can get into sediments and water.

What was mined here (according to the register of old mine workings)

• Sb38×
• Au35×
• As2×
• Pb1×
• Zn1×
• Ba1×

Types of mining objects

• adit53×
• spoil heap16×
• other type of object8×
• shaft3×
• pinge (mining subsidence pit), line of pinge pits2×
• tailings pond1×

Nearest old mine workings

Deposits and mining areas

Ore occurrences in the metallogenic map

Boreholes and Geofond archive reports

Register of hydrogeological boreholes, other boreholes and geothermal boreholes. Each borehole has a report in the Geofond archive (geological profiles, pumping tests, chemical analyses of the water); the report number is in the table.

355 boreholes in the 3 km zone, of which 17 hydrogeological and 338 other; with an archive report number 355.

Borehole depths

• up to 10 m49×
• 10–30 m91×
• 30–100 m110×
• 100–300 m67×
• over 300 m33×

Nearest boreholes

Geothermal energy and mineral waters

Geothermal boreholes (wellhead water temperature, yield, chemical type) and sources of geothermal and mineral waters within 10 km. Data on the use and existence of a borehole come from the Geofond register.

Sources of geothermal and mineral waters

Environmental burdens, landfills and anthropogenic sediments

Recorded environmental burdens (industrial sites, landfills, mining), the register of waste landfills and monitoring of anthropogenic sediments (industrial sludge). It is a list of places, not a measurement of water pollution.

Environmental burdens