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Table 4 Key geological settings in support of Fig. 2 (left)

From: Modelling an unconventional closed-loop deep borehole heat exchanger (DBHE): sensitivity analysis on the Newberry volcanic setting

Key Geological name Altitude range Thermodynamic propertiesa
1. Newberry–Deschutes (upper) + 1600 m to + 1400 m \(\rho =\) 2700 kg/m\(^{3}\)b
\(c_{\text{P}} = 1000 {\text{ J}/{\text{kg}}}\,^{\circ }\text {C}\)b
\(\varPhi = 0.2\; (20\%\))
\(K = 0.15\times 10^{-11}\text { m}^{2}\)
\(\lambda = 1.7 \,{ \text{W}/{\text{mK}}}\)
2. Newberry–Deschutes + 1400 m to + 300 m \(\varPhi = 0.1\) (10\(\%\))
\(K = 0.1\times 10^{-16}\text { m}^{2}\)
\(\lambda = 1.8 \,{ \text{W}/{\text{mK}}}\)
3. John Day + 300 m to − 800 m \(\varPhi = 0.05\) (5\(\%\))
\(K = 2.6\times 10^{-16}\text { m}^{2}\)
\(\lambda = 2.15\; {\text{W}/{\text{mK}}}\)
4. Intruded John Day − 800 m to − 1500 m \(\varPhi = 0.03\) (3\(\%\))
\(K = 0.5\times 10^{-17}\text { m}^{2}\)
\(\lambda = 2.15\; {\text{W}/{\text{mK}}}\)
  1. aAll properties apart from \(\rho\) and \(c_{\text{P}}\) are cited from Sonnenthal et al. (2012)
  2. bAll rock properties have identical \(\rho\) and \(c_{\text{P}}\) variables, quoted from Sammel et al. (1988)