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BDFGeotherm - a web database of geothermal fluids in Switzerland

BDFGeotherm – General information on Furka

Site description
Country Switzerland
Canton/Province Wallis
Use Building heating
Geology
Surface formation Granite
Age of surface formation Hercynian
Reservoir formation Granite
Age of reservoir formation Hercynian
Geological setting Gotthard Massif
Furka
Furka
Furka has 1 sampling point
and a geological log is available (*)

S8737 (FURKA-S5165)
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Site: Furka
Sampling point: S8737
Sample name: FURKA-S5165
Description
Samplig point type: Tunnel
X-coord: 679'000
Y-coord: 155'000
Elevation: 1500 masl
Depth: 1400 m
Hydraulics
Flow rate: 0.30 l/s
Surface temperature: 21.7 °C
Max. measured temp.: 21.7 °C
Hydraul. conduct.: no data
Exploitation mode: Free flow
Hydrochemistry
Sampling date: 24.05.1991
Geochemical type: Na>Ca-SO4>HCO3
Temperature: 21.7 °C
Electrical conductivity: 160 µS/cm
pH: 8.84
Cations (mg/l)
Li: <0.1
Na: 18.6
K: 0.7
Mg: 0.1
Ca: 18.3
Sr: 0.1
Anions (mg/l)
F: no data
Cl: 1.1
SO4: 48.7
HCO3: 49
Undissociated (mg/l)
SiO2: 16.7
TDS: 153 mg/l
Ionic balance: -2.3 %
Isotopes
Sampling date: 24.05.1991
δ18O: -14.16 ‰
D: -102.00 ‰
3H: 5.6 TU
14C: no data
Resid. time: >30 years/date
Infiltration area: 2100 masl
Geothermal parameters
Min. reservoir temp.: 22 °C
Max. reservoir temp.: 22 °C
Reservoir depth: 1500 masl
Geoth. gradient: 16 °C/km
Geoth. potential: 15 kWth
Geological log
FURKA-S5165
FURKA-S5165
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